JP5318239B2 - Power system supply and demand control method and information processing apparatus - Google Patents

Description

  The present invention relates to a power supply and demand control method and an information processing apparatus, and more particularly to a technique for enabling efficient power supply and demand control.

  In recent years, a power generation device using natural energy such as a solar power generator for home use has attracted attention. However, the output of power generation devices that use natural energy is likely to fluctuate due to the influence of weather conditions, etc.When this is linked to the power system, the effects on the power system such as voltage fluctuations and frequency fluctuations will be a problem, and supply and demand adjustment will be necessary. A mechanism to do it properly is required.

  As a technique related to supply and demand adjustment in the power system, for example, Patent Document 1 obtains the output of the generator and the power consumption of the load for each of the first distribution lines, and obtains the first supply and demand difference that is the difference between the supply and demand. A first information processing device is attached, a second information processing device for obtaining a second supply / demand difference, which is a respective supply / demand difference, is attached to each of the second distribution lines, and a supply / demand difference is provided to each of the third distribution lines. A third information processing device for obtaining a third supply-demand difference is attached, and each of the first information processing devices is attached to a second distribution line connected to a direct higher rank of the first distribution line to which the first information processing apparatus is attached. The second supply / demand difference is obtained from the second information processing device, and the third supply / demand difference is obtained from the third information processing device attached to the third distribution line connected to the upper direct line. It is described that the power supply to the load is controlled based on the difference.

  Patent Document 2 discloses a first information processing apparatus that is attached to each of the first distribution lines and obtains the output of the generator and the power consumption of the load to obtain the supply-demand difference (first supply-demand difference). Obtain the second supply-demand difference, which is the supply-demand difference for the upper second distribution line, and the third supply-demand difference, which is the supply-demand difference for the third direct distribution line directly above the second distribution line. When performing the first tier power control, the second tier power control based on the second supply / demand difference, and the third tier power control based on the third supply / demand difference, the other first information processing devices perform the first to third tier power control. It is determined whether the first to third other station control right signals indicating whether or not the control right is currently being requested or acquired. If not, the local station performs first to third layer power control. The first to third local control right signals indicating that the control right is currently being requested or acquired and power control is started. System have been described.

JP 2011-193645 A JP 2011-229243 A

  By the way, in general, the output of the power generators constituting the power system and the power consumption of the load are different for each power generator and the load. Therefore, the supply and demand control is performed in consideration of the individual adjustment capability of the power generator and the load. By doing so, supply and demand control of the power system can be performed more efficiently.

  The present invention has been made in view of such a background, and an object of the present invention is to provide a power supply and demand control method and an information processing apparatus capable of efficiently performing power supply and demand control.

  One aspect of the present invention for achieving the above object is a supply and demand control method in an electric power system, wherein a first information processing apparatus is attached to each load connected to the electric power system, and the first information processing apparatus is provided. Has a function of acquiring the current power consumption of the self-load that is a load attached to the self-load and a function of controlling the power consumption of the self-load, and each of the first information processing apparatuses includes second information The first information processing apparatus transmits the acquired power consumption to the second information processing apparatus, and the second information processing apparatus receives the first information processing apparatus from the first information processing apparatus. Based on the power consumption, a supply-demand difference currently occurring in the power system is determined, and the determined supply-demand difference is transmitted to the first information processing apparatus that is the transmission source of the power consumption, and each of the first information processing apparatuses Receive the current supply-demand difference Then, when the power consumption of the own load is controlled, the supply / demand difference of the power system is predicted based on the received current supply / demand difference and the current power consumption of the own load. The scheduled start time of supply and demand control is set so that the control of the power consumption of the own load is started, and the control of the power consumption of the own load is started at the scheduled start time.

  According to the present invention, each of the first information processing devices starts controlling the power consumption of its own load when the supply / demand control start time set earlier is reached as the supply / demand difference predicted by itself decreases. The supply and demand control can be started earlier as the first information processing apparatus that can further reduce the supply and demand difference. Thereby, the supply-demand difference in an electric power system can be eliminated efficiently.

  Another aspect of the present invention is a supply and demand control method in the power system, wherein the first information processing device sets the scheduled start time earlier as the remaining capacity is smaller when the load is a storage battery. It is set so that control of the power consumption of the own load is started.

  According to the present invention, when the self-load is a storage battery, the first information processing apparatus starts the control of the power consumption of the self-load earlier as the remaining capacity decreases. Thus, the load (storage battery) that has a small remaining capacity and consumes a large charge current starts power consumption control earlier, and can efficiently eliminate the supply-demand difference. In addition, since charging of a storage battery with a small remaining capacity is started early, for example, electric vehicles can be used early, and the supply and demand control in the power system is efficiently performed while improving convenience for consumers. Can do.

  Another aspect of the present invention is a supply and demand control method in the power system, wherein the first information processing device stores a time at which the self load is disconnected from the power system when the self load is a storage battery. Then, the scheduled start time is set so that the control of the power consumption of the own load is started earlier as the time at which the own load is disconnected from the power system is earlier.

  According to the present invention, when the self-load is a storage battery, the first information processing apparatus determines the scheduled start time of power consumption control as soon as the time when the self-load is disconnected from the power system is earlier. Since the power consumption control is set to be started, the load connected to the power system can be effectively used for supply and demand control. Moreover, when the use start time of the storage battery is approaching, the power consumption control can be started earlier as the load needs to start the power consumption control earlier. For this reason, it is possible to eliminate the power supply / demand difference while improving convenience for consumers using storage batteries, such as starting charging of an electric vehicle scheduled to be used soon.

  Another aspect of the present invention is a supply and demand control method in the power system, which is a supply and demand control method in the power system, wherein the current output of the generator is connected to the generator connected to the power system. A third information processing device having a function of acquiring the first information processing device, the third information processing device communicatively connected to the second information processing device, and the third information processing device acquiring the current output acquired To the second information processing device, and the second information processing device receives the current output of the generator received from the third information processing device and the current load of the load received from the first information processing device. The current supply-demand difference in the power system is obtained based on the power consumption of the power system.

  According to the present invention, the second information processing apparatus calculates the supply-demand difference based on the current power consumption of the load connected to the power system and the current output of the generator connected to the power system. Thus, the supply and demand difference occurring in the power system can be obtained more accurately, and supply and demand control can be performed more appropriately.

  In addition, the subject which this application discloses, and its solution method are clarified by the column of the form for inventing, and drawing.

  According to the present invention, it is possible to efficiently perform power supply and demand control.

1 is a schematic configuration diagram of a power system 1. FIG. 2 is a diagram illustrating a hardware configuration of a first information processing apparatus 10. FIG. It is a figure explaining the main functions with which the 1st information processor 10 is provided. It is an example of the identification information 150. 3 is an example of first supply and demand information 160. 3 is a diagram illustrating a hardware configuration of a third information processing apparatus 30. FIG. It is a figure explaining the main functions with which the 3rd information processor 30 is provided. It is an example of the identification information 150. It is an example of the 3rd supply-and-demand information 360. It is a figure explaining the hardware constitutions of the 4th information processing apparatus. It is a figure explaining the main functions with which the 4th information processor 40 is provided. It is an example of the identification information 150. It is an example of the 4th demand-and-supply information 460. It is a figure explaining the hardware constitutions of the 2nd information processor. It is a figure explaining the main functions with which the 2nd information processor 20 is provided. It is an example of the identification information 150. It is an example of the 2nd supply-and-demand information 260. FIG. It is a flowchart explaining power consumption acquisition process S1800. It is a flowchart explaining power consumption transmission process S1900. It is a flowchart explaining supply-demand difference reception processing S2000. It is a flowchart explaining supply-and-demand control processing S2100. It is a flowchart explaining remaining time setting process S2200. It is a flowchart explaining self load control start process S2300. It is a flowchart explaining generator output acquisition process S2400. It is a flowchart explaining power consumption reception processing S2500. It is a flowchart explaining SM group area request | requirement amount transmission process S2600. It is a flowchart explaining supply-demand difference reception processing S2700. It is a flowchart explaining generator output acquisition process S2800. It is a flowchart explaining SM group area request | requirement amount reception process S2900. It is a flowchart explaining MS group area request | requirement amount transmission process S3000. It is a flowchart explaining supply-demand difference reception processing S3100. It is a flowchart explaining generator output acquisition process S3200. It is a flow chart explaining MS group area demand amount reception processing S3300. It is a flowchart explaining supply-demand difference transmission processing S3400. 2 is a hardware configuration of the first information processing apparatus 10. This is a main function provided in the first information processing apparatus 10. 3 is an example of first supply and demand information 160. It is a flowchart explaining remaining time setting process S3800. This is a main function provided in the first information processing apparatus 10. 3 is an example of first supply and demand information 160. It is a flowchart explaining remaining time setting process S4100.

<First Embodiment>
FIG. 1 shows a schematic configuration of a power system 1 described as an embodiment. The power system 1 is, for example, a commercial power system or a microgrid, and includes a plurality of loads 6 and a plurality of generators 5.

  The load 6 is a device that uses electric power supplied from a generator, and is, for example, a storage load such as a battery of an electric vehicle (EV), or a heat storage load such as a water heater or a heat storage air conditioner for business use.

  The generator 5 is, for example, a generator using natural energy such as a solar power generator, a hydroelectric power generator, or a wind power generator, or a cogeneration generator such as a diesel generator, a gas turbine generator, or a gas engine generator. .

  As shown in the figure, the first information processing apparatuses 10A1a, A1b, A2a, A2b, and B2a are attached to the loads 6 (1) to (5), respectively. In addition, the third information processing devices 30A1, A2, and B2 are attached to the generators 5 (1) to (3), respectively. The generators 5 (4) and (5) are provided with fourth information processing devices 40A and 40B, respectively. The generator 5 (6) is provided with a second information processing device 20GM.

  In the following description, the first information processing apparatus 10 is also referred to as SL (SLave). The third information processing apparatus 30 is also referred to as SM (SubMaster). The fourth information processing apparatus 40 is also referred to as MS (MaSter). The second information processing apparatus 20 is also referred to as GM (General Master).

  The information processing devices 10, 20, 30, and 40 constitute a tree-shaped communication network (tree shape) starting from the second information processing device 20GM (root). That is, the second information processing device 20GM is communicably connected to each of the fourth information processing devices 40A and 40B. Of these, the fourth information processing apparatus 40A is communicably connected to the third information processing apparatuses 30A1 and 30A2, and the third information processing apparatus 30A1 is connected to each of the first information processing apparatuses 10A1a and 10A1b. The third information processing device 30A2 is communicably connected, and is communicably connected to each of the first information processing devices 10A2a and 10A2b. The fourth information processing device 40B is communicably connected to the third information processing device 30B2, and the third information processing device 30B2 is communicably connected to the first information processing device 10B2a. The communication between the information processing apparatuses 10, 20, 30, 40 is, for example, a wired or wireless communication network such as a LAN, WAN, the Internet, power line communication (PLC), a dedicated line, or an optical fiber. Done through.

  In the following description, a group including the first information processing apparatus 30A1 and the two first information processing apparatuses 10A1a and 10A1b that are communicably connected to the first information processing apparatus 30A1 is referred to as “group A1”. A group including the third information processing apparatus 30A2 and the two first information processing apparatuses 10A2a and 10A2b that are communicably connected to the third information processing apparatus 30A2 is referred to as “group A2”. A group including the fourth information processing apparatus 40A and “group A1” and “group A2” connected to be communicable with the fourth information processing apparatus 40A is referred to as “group A”.

  A group including the third information processing apparatus 30B2 and the first information processing apparatus 10B2a connected to be communicable with the third information processing apparatus 30B2 is referred to as “group B2”. A group including the fourth information processing apparatus 40B and the two third information processing apparatuses 30B2 and 30B2a that are communicably connected thereto is referred to as “group B”.

  FIG. 2 shows a hardware configuration of the first information processing apparatus 10. As shown in the figure, the first information processing apparatus 10 includes a CPU 111, a memory 112 (RAM, ROM, NVRAM, etc.), a storage device 113 (hard disk, SSD, etc.), an input device 114 (touch panel, mouse, etc.), a display device. 115 (liquid crystal display, etc.), communication circuit 116, RTC (Real Time Clock), etc. are used to generate date and time information (time stamp) such as current date and time, power consumption measuring circuit 118, and power consumption control A circuit 119 is provided.

  The power consumption measuring circuit 118 measures the current power consumption of the load 6 (hereinafter referred to as “self load”) to which the power consumption measuring circuit 118 is attached. The power consumption control circuit 119 performs control for starting power supply to the own load (hereinafter referred to as “on control”) and control for stopping power supply to the own load (hereinafter referred to as “off control”).

  FIG. 3 shows main functions of the first information processing apparatus 10. As shown in the figure, the first information processing apparatus 10 includes a power consumption acquisition unit 131, a power consumption transmission unit 132, a supply / demand difference reception unit 133, a supply / demand difference prediction unit 134, a scheduled control start time setting unit 135, and a supply / demand control. Each function of the start unit 136 is provided. These functions are realized by the hardware of the first information processing apparatus 10 or by the CPU 111 of the first information processing apparatus 10 reading and executing a program stored in the memory 112 or the storage device 113. Is done.

  Among the functions shown in FIG. 3, the power consumption acquisition unit 131 acquires the current power consumption of the own load. The power consumption transmission unit 132 transmits the power consumption acquired by the power consumption acquisition unit 131 to the second information processing apparatus 20. The supply / demand difference receiving unit 133 receives a supply / demand difference (hereinafter also referred to as an area requirement AR (Area Requirement)) that is currently generated in the power system 1 and is sent from the second information processing device 20.

  The supply / demand difference prediction unit 134 shows the supply / demand difference of the power system 1 when the power consumption of the own load is controlled, the supply / demand difference received by the supply / demand difference reception unit 133, and the current load of the own load acquired by the power consumption acquisition unit 131. Predict based on power consumption.

  The scheduled control start time setting unit 135 is configured so that the control of the power consumption of the own load (eg, on control, off control) is started earlier as the supply / demand difference predicted by the supply / demand difference prediction unit 134 is smaller. A scheduled start time (hereinafter referred to as a scheduled control start time) is set.

  When the scheduled start time set by the scheduled control start time setting unit 135 arrives, the supply and demand control start unit 136 starts controlling the power consumption of the own load.

  As shown in FIG. 3, the first information processing apparatus 10 manages the identification information 150 and the first supply and demand information 160. FIG. 4 shows an example of the identification information 150 among them. As shown in the figure, the identification information 150 includes items of an identifier 151, a hierarchy 152, and a type 153.

  Among these, the identifier 151 is set with an identifier assigned to the first information processing apparatus 10. The hierarchy 152 includes the hierarchy of the first information processing apparatus 10 (the information processing apparatuses are the first information processing apparatus 10, the second information processing apparatus 20, the third information processing apparatus 30, and the fourth information processing apparatus 40 ( For example, if the information processing device is the first information processing device 10, “slave”, if the information processing device 20 is the second information processing device 20, “GeneralMaster”, third The information processing device 30 is set to “subMaster”, and the fourth information processing device 40 is set to “Master”.

  The type 153 is information indicating the type of the first information processing device 10 (whether the information processing device is attached to the load 6 or the generator 5). “EV” is set when it is attached to the load 6, and “PV” is set when it is attached to the generator 5).

  FIG. 5 shows an example of the first supply and demand information 160 managed by the first information processing apparatus 10. As shown in the figure, the first supply and demand information 160 includes items of time 161, power consumption 162, regional requirement 163, and remaining time 166.

  Of these, the current time is set at time 161. In the power consumption 162, the current power consumption of the own load is set. In the regional requirement amount 163, a supply-demand difference (regional requirement amount AR) currently occurring in the power system 1 is set.

  In the remaining time 166, the remaining time from the current time to the aforementioned scheduled control start time is set. More specifically, in the remaining time 166, the remaining time until the on-control is started (hereinafter referred to as on-control start remaining time Tc1), or the remaining time until the off-control is started (hereinafter referred to as off-control start). (Referred to as the remaining time Tc2) (that is, the scheduled start time of the self-load is determined by the remaining time 166). The values of the remaining on-control start time Tc1 and the remaining on-control start time Tc2 are updated by the first information processing apparatus 10 in real time.

  FIG. 6 shows a hardware configuration of the third information processing apparatus 30. As shown in the figure, the third information processing device 30 includes a CPU 311, a memory 312 (RAM, ROM, NVRAM, etc.), a storage device 313 (hard disk, SSD, etc.), an input device 314 (touch panel, mouse, etc.), a display device. 315 (liquid crystal display, etc.), communication circuit 316, RTC (Real Time Clock), etc. are used to generate date and time information (time stamp) such as the current date and time, and generator 5 to which it is attached An output measurement circuit 318 is provided for measuring the current output.

  FIG. 7 shows main functions of the third information processing apparatus 30. As shown in the figure, the third information processing apparatus 30 includes functions of a generator output acquisition unit 331, a generator output transmission unit 332, and a supply / demand difference reception unit 333. Note that these functions are realized by the hardware of the third information processing apparatus 30 or by the CPU 311 of the third information processing apparatus 30 reading and executing a program stored in the memory 312 or the storage device 313. Is done.

  Among the functions shown in FIG. 7, the generator output acquisition unit 331 acquires the current output of the own generator. The generator output transmission unit 332 transmits the output acquired by the generator output acquisition unit 331 to the second information processing apparatus 20. The supply-demand difference receiving unit 333 receives the supply-demand difference (regional requirement amount AR) currently generated in the power system 1 transmitted from the second information processing device 20.

  As illustrated in FIG. 7, the third information processing apparatus 30 manages the identification information 150 and the third supply and demand information 360. FIG. 8 shows an example of the identification information 150 among them. The format of the identification information 150 is the same as that shown in FIG.

  As shown in the figure, the identifier assigned to the third information processing apparatus 30 is set in the identifier 151. In the hierarchy 152, “subMaster” that is the hierarchy of the third information processing apparatus 30 is set. In the type 153, “PV” that is the type of the first information processing apparatus 30 is set.

  FIG. 9 shows an example of third supply and demand information 360 managed by the third information processing apparatus 30. As shown in the figure, the third supply and demand information 360 includes a time 361, a generator output 362, an SM group regional request amount 363, and a regional request amount 364.

  The current time is set as the time 361. In the generator output 362, the current output of the own generator is set. The SM group regional requirement amount 363 is a supply-demand difference calculated based on the current output of the power generator and the power consumption transmitted from the first information processing apparatus 10 (hereinafter referred to as the SM group regional requirement amount). Is set. The regional demand amount 364 is set with the supply-demand difference (regional demand amount AR) currently occurring in the power system 1.

  FIG. 10 shows a hardware configuration of the fourth information processing apparatus 40. As shown in the figure, the fourth information processing apparatus 40 includes a CPU 411, a memory 412 (RAM, ROM, NVRAM, etc.), a storage device 413 (hard disk, SSD, etc.), an input device 414 (touch panel, mouse, etc.), a display device. 415 (liquid crystal display, etc.), communication circuit 416, RTC (Real Time Clock), etc. are used to generate date and time information (time stamp) such as the current date and time, and generator 5 to which it is attached. An output measurement circuit 418 is provided for measuring the current output.

  FIG. 11 shows main functions of the fourth information processing apparatus 40. As shown in the figure, the fourth information processing apparatus 40 includes functions of a generator output acquisition unit 431, a generator output transmission unit 432, and a supply / demand difference reception unit 433. Note that these functions are realized by the hardware of the fourth information processing device 40 or by the CPU 411 of the fourth information processing device 40 reading and executing a program stored in the memory 412 or the storage device 413. Is done.

  Among the functions shown in the figure, the generator output acquisition unit 431 acquires the current output of the own generator. The generator output transmission unit 432 transmits the acquired output to the second information processing apparatus 20. The supply / demand difference receiving unit 433 receives the supply / demand difference (regional requirement amount AR) currently generated in the power system 1 transmitted from the second information processing device 20.

  As illustrated in FIG. 11, the fourth information processing apparatus 40 manages the identification information 150 and the fourth supply and demand information 460. FIG. 12 shows an example of the identification information 150 among them. The format of the identification information 150 is the same as that shown in FIG. As shown in the figure, the identifier assigned to the fourth information processing apparatus 40 is set in the identifier 151. In the hierarchy 152, “Master” which is the hierarchy of the fourth information processing apparatus 40 is set. In the type 153, “PV” that is the type of the fourth information processing apparatus 40 is set.

  FIG. 13 shows an example of the fourth supply and demand information 460 managed by the fourth information processing apparatus 40. As shown in the figure, the fourth supply and demand information 460 includes a time 461, a generator output 462, an MS group regional requirement 463, and a regional requirement 464.

  Of these, the current time is set as the time 461. In the generator output 462, the current output of the own generator is set. The MS group regional requirement amount 463 includes a supply-demand difference calculated based on the current output of the power generator and the SM group regional requirement amount transmitted from the third information processing device 30 (hereinafter referred to as the MS group regional requirement amount). Is set). In the regional requirement amount 464, a supply-demand difference (regional requirement amount AR) currently occurring in the power system 1 is set.

  FIG. 14 shows a hardware configuration of the second information processing apparatus 20. As shown in the figure, the second information processing device 20 includes a CPU 211, a memory 212 (RAM, ROM, NVRAM, etc.), a storage device 213 (hard disk, SSD, etc.), an input device 214 (touch panel, mouse, etc.), a display device. 215 (liquid crystal display, etc.), communication circuit 216, RTC (Real Time Clock), etc. are used to generate date and time information (time stamp) such as the current date and time, and generator 5 to which it is attached An output measurement circuit 218 for measuring the current output of the output.

  FIG. 15 shows the main functions of the second information processing apparatus 20. As shown in the figure, the second information processing apparatus 20 includes functions of a generator output acquisition unit 231, a power consumption reception unit 232, a generator output reception unit 233, a supply / demand difference calculation unit 234, and a supply / demand difference transmission unit 235. Is provided. Note that these functions are realized by the hardware of the second information processing device 20 or by the CPU 211 of the second information processing device 20 reading and executing a program stored in the memory 212 or the storage device 213. Is done.

  Among the functions shown in the figure, the generator output acquisition unit 231 acquires the current output of the own generator. The power consumption receiver 232 receives the power consumption transmitted from the first information processing apparatus 10. The generator output receiving unit 233 receives the current output of the generator 5 attached to the information processing apparatus transmitted from another information processing apparatus.

  The supply and demand difference calculation unit 234 obtains the supply and demand difference in the power system 1 based on the power consumption received by the power consumption reception unit 232 and the output received by the generator output reception unit 233. The supply-demand difference transmission unit 235 transmits the supply-demand difference (regional request amount AR) obtained by the supply-demand difference calculation unit 234 to the first information processing apparatus 10 that is the transmission source of power consumption.

  As illustrated in FIG. 15, the second information processing apparatus 20 manages the identification information 150 and the second supply and demand information 260. FIG. 16 shows an example of the identification information 150 among them. The format of the identification information 150 is the same as that shown in FIG. As shown in the figure, the identifier assigned to the second information processing apparatus 20 is set in the identifier 151. In the hierarchy 152, “GeneralMaster” that is the hierarchy of the second information processing apparatus 20 is set. In the type 153, “PV” that is the type of the second information processing apparatus 20 is set.

  FIG. 17 shows an example of the second supply and demand information 260. As shown in the figure, the second supply and demand information 260 includes a time 261, a generator output 262, and a regional requirement amount 263. Of these, the current time is set as the time 261. In the generator output 262, the current output of the own generator is set. In the regional requirement amount 263, a supply and demand difference (regional requirement amount AR) in the power system 1 is set.

= Description of processing =
Next, the process performed in the electric power grid | system 1 which consists of the above structure is demonstrated.

<Processing of the first information processing apparatus 10>
FIG. 18 is a flowchart illustrating a process (hereinafter referred to as a power consumption acquisition process S1800) of acquiring the power consumption of the own load among the processes performed by the first information processing apparatus 10.

  As shown in the figure, the first information processing apparatus 10 acquires the current power consumption Pe of its own load at any time (for example, every predetermined time (for example, 1 second) or when a timing scheduled in advance arrives). (S1811).

  FIG. 19 is a flowchart illustrating a process in which the first information processing apparatus 10 transmits the power consumption Pe of its own load to the third information processing apparatus 30 (hereinafter referred to as power consumption transmission process S1900).

  As shown in the figure, the first information processing apparatus 10 determines the self-load acquired in the power consumption acquisition process S1800 at any time (for example, every predetermined time (for example, 1 second) or when a scheduled timing arrives). The current power consumption Pe is transmitted to the third information processing apparatus 30 (S1911).

  FIG. 20 is a flowchart illustrating a process in which the first information processing apparatus 10 receives a supply-demand difference transmitted from the third information processing apparatus 30 (hereinafter referred to as a supply-demand difference reception process S2000).

  As shown in the figure, the first information processing apparatus 10 is transmitted from the third information processing apparatus 30 at any time (for example, every predetermined time (for example, 1 second) or when a previously scheduled timing has arrived). The regional request amount AR is received (S2011).

  FIGS. 21 to 23 show that the first information processing apparatus 10 has its own load based on the power consumption Pe acquired in the power consumption acquisition process S1800 and the supply / demand difference (regional requirement amount AR) received in the supply / demand difference reception process S2000. 5 is a flowchart for explaining a process for performing the control (hereinafter referred to as a supply and demand control process S2100). The first information processing apparatus 10 performs the supply and demand control process S2100 at the timing when the power consumption Pe is acquired from its own load, for example. Further, for example, the first information processing apparatus 10 performs the supply and demand control process S2100 at the timing when the regional request amount AR is received from the third information processing apparatus 30.

  The first information processing apparatus 10 sets a value (remaining time) in the remaining time 166 of the first supply and demand information 160 before starting control of the own load.

  As shown in FIG. 21, the first information processing apparatus 10 first determines whether or not a value is set for the remaining time 166 with reference to the first supply and demand information 160 before starting the supply and demand control (S2111). . When no value is set for the remaining time 166 (S2111: NO), the processing of S2200 (hereinafter referred to as remaining time setting processing S2200) is executed, and when a value is set for the remaining time 166 (S2111). : YES) The process proceeds to S2300 (hereinafter referred to as self-load control start process S2300). After the remaining time setting process S2200 or the own load control start process S2300 is executed, the process returns to S2111.

  FIG. 22 is a flowchart for explaining details of the remaining time setting process S2200 shown in FIG. In the remaining time setting process S2200, the first information processing apparatus 10 predicts the supply and demand difference of the power system 1 when the power consumption of the own load is controlled. The smaller the predicted supply and demand difference, the earlier the power consumption of the own load. The remaining time is set so that control is started.

  As shown in the figure, the first information processing apparatus 10 acquires the value (region request amount AR) set in the region request amount 163 of the first supply and demand information 160 as AR0 (S2211), and from the acquired AR0 Then, a value obtained by subtracting the power consumption Pe acquired in the power consumption acquisition process S1800 (hereinafter referred to as supply-demand difference ΔAR) is calculated.

  Next, the first information processing apparatus 10 determines whether or not the calculated absolute value | ΔAR | of the supply-demand difference ΔAR is larger than a predetermined value a (a positive constant) (S2213).

  If | ΔAR | is greater than the predetermined value a (S2213: YES), the process proceeds to S2214. If | ΔAR | Return to.

  In S2214, the first information processing apparatus 10 determines whether or not AR0 acquired in S2211 is a positive value. If AR0 is a positive value (S2214: YES), the process proceeds to S2215, and AR0 is 0 or less. If there is (S2214: NO), the process proceeds to S2221.

  In S2215, the first information processing apparatus 10 determines whether or not the power consumption Pe acquired in the power consumption acquisition process S1800 is 0. If the acquired power consumption Pe is 0 (S2215: YES), S2116. When the acquired power consumption Pe is not 0 (S2215: NO), the remaining time setting process S2200 is terminated and the process returns to S2111 in FIG.

  In S2216, the first information processing apparatus 10 sets the ON control start remaining time Tc1 to the remaining time 166 of the first supply / demand information 160 so that the ON control of the own load is started earlier as the supply / demand difference ΔAR is smaller. . Specifically, an ON control start remaining time Tc1 (= “α · ΔAR” (α is a positive constant)) is set as the remaining time 166. Thereafter, the process returns to S2111 in FIG.

  In S2221, the first information processing apparatus 10 determines whether or not the power consumption Pe acquired in the power consumption acquisition process S1800 is larger than a constant a (S2221: YES), the process proceeds to S2222. If it is equal to or less than a (S2222: NO), the remaining time setting process S2200 ends and returns to S2111 in FIG.

  In S <b> 2222, the first information processing apparatus 10 sets the remaining OFF control start remaining time Tc <b> 2 to the remaining time 166 of the first supply / demand information 160 so that the control of the power consumption of the own load is started earlier as the supply / demand difference ΔAR is smaller. Set. Specifically, an OFF control start remaining time Tc2 (= “α · ΔAR” (α is a positive constant)) is set as the remaining time 166. Thereafter, the process returns to S2111 in FIG.

  FIG. 23 is a flowchart for explaining the details of the processing of S2300 (hereinafter referred to as self-load control start processing S2300).

  As shown in the figure, the first information processing apparatus 10 refers to the remaining time 166 of the first supply and demand information 160 and determines whether or not the remaining time until the self-load control (on control or off control) is zero. Is determined (S2311).

  If the remaining time 166 is 0 (S2311: YES), the process proceeds to S2312, and if the remaining time 166 is greater than 0 (S2311: NO (> 0)), the process proceeds to S2321.

  In S2312, the first information processing apparatus 10 starts controlling its own load. Specifically, the control set for the remaining time 166 (ON control if “Tc1 =” is set for the remaining time 166, and OFF control if “Tc2 =” is set for the remaining time 166). Start. Thereafter, the process returns to S2111 in FIG.

  In S2321, the first information processing apparatus 10 refers to the regional request amount 163 of the first supply and demand information 160, and determines whether or not the regional request amount AR has changed. Specifically, for example, an absolute value of a value obtained by subtracting AR0 acquired in the remaining time setting process S2200 from the regional request amount AR is calculated, and it is checked whether or not the calculated absolute value is greater than a positive predetermined value b. Thus, it is determined whether or not the regional requirement amount AR is fluctuating.

  If the regional requirement amount AR has fluctuated (S2321: YES), the process proceeds to S2322, and if the regional requirement amount AR has not fluctuated (S2321: NO), the self-load control start processing S2300 is terminated and FIG. The process returns to S2111.

  In S2322, the first information processing apparatus 10 cancels the self-load control. Specifically, the setting content of the remaining time 166 is deleted (reset). Thereafter, the process returns to S2111 in FIG.

  As described above, when the first information processing apparatus 10 determines that the local requirement amount AR has fluctuated, the first information processing apparatus 10 cancels the self-load control. It is possible to prevent the self-load from being unnecessarily controlled when it is predicted that the control effect will not continue.

<Processing of Third Information Processing Device 30>
FIG. 24 is a flowchart illustrating a process of acquiring the output of the own generator (hereinafter referred to as a generator output acquisition process S2400) among the processes performed by the third information processing apparatus 30.

  As shown in the figure, the third information processing apparatus 30 acquires the current output Pg of the self-generator at any time (for example, every predetermined time (for example, 1 second) or when a pre-scheduled timing arrives) ( S2411).

  FIG. 25 is a flowchart for describing processing in which the third information processing apparatus 30 receives power consumption information transmitted from the first information processing apparatus 10 (hereinafter referred to as power consumption reception processing S2500).

  As shown in the figure, the third information processing device 30 is transmitted from the first information processing device 10 at any time (for example, every predetermined time (for example, 1 second) or when a pre-scheduled timing has arrived). The power consumption Pe is received (S2511).

  FIG. 26 shows that the third information processing apparatus 30 transmits the SM group region request amount to the fourth information processing apparatus 40 at any time (for example, every predetermined time (for example, 1 second) or when a pre-scheduled timing arrives). 6 is a flowchart for explaining the processing (hereinafter referred to as SM group regional request amount transmission processing S2600).

  As shown in the figure, the third information processing apparatus 30 calculates the SM group area request amount ARsm (S2611). Specifically, the current output Pg of the own generator acquired in the generator output acquisition process S2400 and the power consumption Pe received in the power consumption reception process S2500 are summed.

  The third information processing apparatus 30 transmits the calculated SM group area request amount ARsm to the fourth information processing apparatus 40 (S2612).

  FIG. 27 shows the supply-demand difference transmitted from the fourth information processing apparatus 40 at any time (for example, every predetermined time (for example, 1 second) or when a pre-scheduled timing has arrived). It is a flowchart explaining the process (henceforth a supply-demand difference reception process S2700) to receive.

  As shown in the figure, the third information processing apparatus 30 receives the regional request amount AR transmitted from the fourth information processing apparatus 40 (S2711).

  The third information processing apparatus 30 transmits the received regional request amount AR to the first information processing apparatus 10 (S2712).

<Processing of Fourth Information Processing Device 40>
FIG. 28 is a flowchart illustrating a process of acquiring the output of the own generator (hereinafter referred to as a generator output acquisition process S2800) among the processes performed by the fourth information processing apparatus 40.

  As shown in the figure, the fourth information processing apparatus 40 acquires the current output Pg of the self-generator at any time (for example, every predetermined time (for example, 1 second) or when a pre-scheduled timing arrives) ( S2811).

  FIG. 29 illustrates a process in which the fourth information processing apparatus 40 receives the SM group area request amount ARsm transmitted from the third information processing apparatus 30 (hereinafter referred to as an SM group area request amount reception process S2900). It is a flowchart to do.

  As shown in the figure, the fourth information processing apparatus 40 is transmitted from the third information processing apparatus 30 at any time (for example, every predetermined time (for example, 1 second) or when a previously scheduled timing has arrived). The SM group area request amount ARsm is received (S2911).

  FIG. 30 shows that the fourth information processing apparatus 40 transmits the MS group area request amount to the second information processing apparatus 20 at any time (for example, every predetermined time (for example, 1 second) or when a pre-scheduled timing has arrived). 6 is a flowchart for explaining the process (hereinafter referred to as MS group regional request amount transmission process S3000).

  As shown in the figure, the fourth information processing apparatus 40 calculates the MS group area request amount ARms (S3011). Specifically, the output Pg of the own generator acquired in the generator output acquisition process S2800 and the SM group area request amount ARsm received in the SM group area request amount reception process S2900 are summed.

  The third information processing apparatus 30 transmits the calculated MS group area request amount ARms to the second information processing apparatus 20 (S3012).

  FIG. 31 shows the difference in the supply-demand difference transmitted from the second information processing device 20 at any time (for example, every predetermined time (for example, 1 second) or when a pre-scheduled timing has arrived). It is a flowchart explaining the process (henceforth a supply-demand difference reception process S3100) which receives information.

  As shown in the figure, the fourth information processing apparatus 40 receives the regional request amount AR transmitted from the second information processing apparatus 20 (S3111).

  The fourth information processing apparatus 40 transmits the received regional request amount AR to the third information processing apparatus 30 (S3112).

<Processing of Second Information Processing Device 20>
FIG. 32 is a flowchart illustrating a process for acquiring the output of the own generator (hereinafter referred to as a generator output acquisition process S3200) among the processes performed by the second information processing apparatus 20.

  As shown in the figure, the second information processing apparatus 20 acquires the current output Pg of the self-generator at any time (for example, every predetermined time (for example, 1 second) or when a pre-scheduled timing has arrived) ( S3211).

  FIG. 33 illustrates a process in which the second information processing apparatus 20 receives the MS group area request amount ARms transmitted from the fourth information processing apparatus 40 (hereinafter referred to as an MS group area request amount reception process S3300). It is a flowchart to do.

  As shown in the figure, the second information processing device 20 is transmitted from the fourth information processing device 40 at any time (for example, every predetermined time (for example, 1 second) or when a pre-scheduled timing has arrived). The MS group area request amount ARms is received (S3311).

  FIG. 34 shows the information on the supply-demand difference currently occurring in the power system 1 when the second information processing apparatus 20 is in need (for example, every predetermined time (for example, 1 second) or when a pre-scheduled timing has arrived). 4 is a flowchart for explaining processing to be transmitted to the information processing device 40 (hereinafter referred to as supply-demand difference transmission processing S3400).

  As shown in the figure, the second information processing apparatus 20 calculates a regional request amount AR (S3411). Specifically, the current output Pg of the own generator acquired in the generator output acquisition process S3200 and the MS group area request amount ARms received in the MS group area request amount reception process S3300 are summed.

  The second information processing device 20 transmits the calculated regional request amount AR to the fourth information processing device 40 (S3412).

  As described above, according to the power supply system 1 of the present embodiment, each of the first information processing apparatuses 10 is configured to supply / demand control that is set at an earlier time as the supply / demand difference (regional requirement AR) predicted by itself is smaller. Since the control of the power consumption of the own load is started when the start time arrives, the supply and demand control can be started earlier as the first information processing apparatus 10 that can further reduce the supply and demand difference (regional requirement amount AR). . Thereby, the supply-demand difference in the electric power grid | system 1 can be eliminated efficiently.

  Further, the second information processing apparatus 20 calculates the supply and demand difference based on the current output of the generator 5 connected to the power system 1 in addition to the current power consumption of the load 6 connected to the power system 1. Since it calculates, the supply-demand difference in the electric power grid | system 1 can be calculated | required correctly, and supply-and-demand control can be performed appropriately.

Second Embodiment
When the load 6 includes a storage battery (for example, when the load 6 is an electric vehicle (EV)), the scheduled start time may be set in consideration of the remaining capacity of the storage battery. 2nd Embodiment demonstrates the case where the remaining capacity of a storage battery is considered.

  FIG. 35 shows a hardware configuration of the first information processing apparatus 10 described as the second embodiment. As shown in the figure, the first information processing apparatus 10 includes a CPU 111, a memory 112, a storage device 113, an input device 114, a display device 115, a communication circuit 116, a time measuring circuit 117, a power consumption measuring circuit 118, and a power consumption control circuit. 119 and a capacity measurement circuit 120. Among these, the capacity measurement circuit 120 measures the remaining capacity of the own load (storage battery). Other configurations are the same as those of the first embodiment.

  FIG. 36 shows the main functions provided in the first information processing apparatus 10. As shown in the figure, the first information processing apparatus 10 includes a power consumption acquisition unit 131, a power consumption transmission unit 132, a supply / demand difference reception unit 133, a supply / demand difference prediction unit 134, a scheduled control start time setting unit 135, and a supply / demand control start. Unit 136 and remaining capacity acquisition unit 137. Among these, the remaining capacity acquisition unit 137 acquires the remaining capacity of the own load (storage battery). Others are the same as in the first embodiment.

  As shown in the figure, the first information processing apparatus 10 manages the identification information 150 and the first supply and demand information 160. Of these, the identification information 150 is the same as in the first embodiment.

  FIG. 37 shows an example of the first supply and demand information 160. As shown in the figure, the first supply and demand information 160 includes time 161, power consumption 162, regional requirement amount 163, remaining battery capacity 164, and remaining time 166. Among these, the current remaining capacity of the own load is set as the remaining battery capacity 164. Other contents are the same as in the first embodiment.

  FIG. 38 is a flowchart for explaining the remaining time setting process (hereinafter referred to as remaining time setting process S3800) performed by the first information processing apparatus 10 according to the present embodiment. Since the processing of S3811 to S3815 and S3821 shown in the figure is the same as that of the first embodiment (S2211 to S2215 and S2221 of FIG. 22), description thereof is omitted.

  In S3816 following S3815, the first information processing apparatus 10 starts the on-control remaining time in the remaining time 166 of the first supply and demand information 160 so that the on-control of the self-load is started earlier as the remaining capacity of the storage battery is smaller. Set Tc1. Specifically, at the remaining time 166, the remaining ON control start time Tc1 (= α · ΔAR + β · SOC (α and β are positive constants, and SOC is the remaining amount of battery (State Of Charge)). Set.

  In S3822 following S3821, the first information processing apparatus 10 starts the off control start remaining time in the remaining time 166 of the first supply and demand information 160 so that the off control of the self-load is started earlier as the remaining capacity of the storage battery is smaller. Set Tc2. Specifically, in the remaining time 166, the OFF control start remaining time Tc2 (= α · ΔAR + β · SOC (α and β are positive constants, and SOC is the remaining amount of battery (State Of Charge)). ) Is set.

  As described above, when the self-load is a storage battery, the first information processing apparatus 10 starts the control of the power consumption of the self-load earlier as the remaining capacity decreases. Therefore, the load 6 (storage battery) that has a small remaining capacity and consumes a large charging current starts power consumption control earlier, and can efficiently eliminate the supply-demand difference. In addition, since charging of the storage battery with a small remaining capacity is started early, for example, the electric vehicle can be used early, and the supply and demand control in the power system 1 is efficiently performed while improving the convenience for consumers. be able to.

<Third Embodiment>
When the load 6 is scheduled to be disconnected from the power system 1 after a predetermined time, such as when an electric vehicle (EV) is scheduled to be used in the near future, the disconnect time is further set. The scheduled start time may be set in consideration. In the third embodiment, a case in which the disconnection of the load 6 is considered will be described. Note that the hardware configuration of the first information processing apparatus 10 described as the third embodiment is the same as that of the first embodiment, and a description thereof will be omitted.

  FIG. 39 shows the main functions of the first information processing apparatus 10. As shown in the figure, the first information processing apparatus 10 includes a power consumption acquisition unit 131, a power consumption transmission unit 132, a supply / demand difference reception unit 133, a supply / demand difference prediction unit 134, a scheduled control start time setting unit 135, and a supply / demand control start. Each of the functions of the unit 136 and the release time storage unit 138 is provided. Of these, the disconnection time storage unit 138 stores the time at which the load is disconnected from the power system 1 (hereinafter referred to as the disconnection time). Other functions are the same as those in the first embodiment.

  As shown in the figure, the first information processing apparatus 10 manages identification information 150 and first supply and demand information 160. Of these, the identification information 150 is the same as in the first embodiment.

  FIG. 40 shows an example of the first supply and demand information 160. As shown in the figure, the first supply and demand information 160 includes a time 161, power consumption 162, an area requirement 163, a disconnection time 165, and a remaining time 166. Of these, the remaining time until the self-load is disconnected (hereinafter referred to as the remaining time for disconnection) is set as the disconnection time 165. Other contents are the same as in the first embodiment.

  FIG. 41 is a flowchart illustrating a remaining time setting process (hereinafter referred to as remaining time setting process S4100) performed by the first information processing apparatus 10 according to the present embodiment. Since the processing of S4111-S4115 and S4121 shown in the figure is the same as that of the first embodiment (S2111-S2115 and S2121 in FIG. 21), description thereof will be omitted.

  In S4116 following S4115, the first information processing apparatus 10 includes the remaining first supply / demand information 160 so that the on-control of the own load is started earlier as the time at which the own load is disconnected from the power system 1 is earlier. At time 166, the remaining ON control start time Tc1 is set. Specifically, the remaining on-control start remaining time Tc1 (= α · ΔAR + γ · P (α and γ are positive constants, and P is the remaining time of self-loading) is set in the remaining time 166. To do.

  In S4122 following S4121, the first information processing apparatus 10 includes the remaining first supply and demand information 160 so that the off-control of the own load is started earlier as the time at which the own load is disconnected from the power system 1 is earlier. At time 166, the remaining OFF control start time Tc2 is set. Specifically, an OFF remaining time Tc2 (= α · ΔAR + γ · P (α and γ are positive constants, and P is a self-loading remaining time) is set as the remaining time 166.

  As described above, when the self-load is a storage battery, the first information processing apparatus 10 determines the scheduled start time of power consumption control as soon as the time at which the self-load is disconnected from the power system 1 is earlier. Since the power consumption control is set to start, the load 6 connected to the power system 1 can be effectively used for supply and demand control. Further, when the storage battery utilization start time is approaching, the power consumption control can be started earlier as the load 6 needs to start the power consumption control earlier. For this reason, it is possible to eliminate the supply-demand difference of the electric power system 1 while improving convenience for consumers using the storage battery, such as starting charging of an electric vehicle scheduled to be used soon. .

  By the way, the embodiment described above is for facilitating the understanding of the present invention, and does not limit the present invention. The present invention can be changed and improved without departing from the gist thereof, and the present invention includes the equivalents thereof.

  For example, by combining the second embodiment and the third embodiment, the first information processing apparatus 10 sets “α · ΔAR + β · SOC + γ · P” as the remaining on-control start time Tc1 in the remaining time 166 of the first supply and demand information 160. (Α, β, and γ are positive constants, SOC is the remaining battery level of the storage battery (State Of Charge), and P is the remaining load disconnection time). .

  Further, for example, the first information processing apparatus 10 determines that “α · ΔAR + β · SOC + γ · P” (α, β, and γ are positive constants) as the remaining OFF control start time Tc2 in the remaining time 166 of the first supply and demand information 160. Yes, the SOC may be the battery remaining amount (State Of Charge) of the storage battery, and P may be the self-load disconnection remaining time.

  In the first to third embodiments described above, subMaster, Master, and GeneralMaster are all attached to the generator 5, but these information processing devices are attached to the load 6. Also good. In this case, each information processing apparatus acquires the current power consumption of its own load.

  In addition, the supply and demand control in the case where there are four layers of information processing apparatuses has been described above, but the present invention is extended and applied to the case where there are n layers (n = 5, 6,...) Of information processing apparatuses. can do.

DESCRIPTION OF SYMBOLS 1 Power system 5 Generator 6 Load 10 1st information processing apparatus 20 2nd information processing apparatus 30 3rd information processing apparatus 131 Power consumption acquisition part 132 Power consumption transmission part 133 Supply / demand difference reception part 134 Supply / demand difference prediction part 135 Scheduled control start Time setting unit 136 Supply / demand control start unit S2000 Supply / demand difference reception process S2100 Supply / demand control process S2200 Remaining time setting process S2300 Self-load control start process

Claims (6)

A supply and demand control method in an electric power system,
A first information processing device is attached to each of the loads connected to the power system,
The first information processing apparatus has a function of acquiring current power consumption of a self-load that is a load attached to the first information processing apparatus and a function of controlling power consumption of the self-load,
Each of the first information processing devices is communicably connected to the second information processing device,
The first information processing apparatus transmits the acquired power consumption to the second information processing apparatus,
The second information processing apparatus
Based on the power consumption received from the first information processing apparatus, a supply-demand difference currently occurring in the power system is determined, and the determined supply-demand difference is transmitted to the first information processing apparatus that is the transmission source of the power consumption. ,
Each of the first information processing apparatuses is
When the current supply-demand difference is received,
Predicting the supply and demand difference of the power system when controlling the power consumption of the own load based on the received current supply and demand difference and the current power consumption of the own load,
Set the scheduled supply and demand control start time so that the power supply control of the self-load is started earlier as the predicted supply and demand difference is smaller,
The supply and demand control method in the electric power system, wherein the control of the power consumption of the own load is started at the scheduled start time. It is the supply-and-demand control method in the electric power system of Claim 1,
When the self-load is a storage battery, the first information processing apparatus sets the scheduled start time so that the control of the power consumption of the self-load is started earlier as the remaining capacity is smaller. Supply and demand control method in power system. It is the supply-and-demand control method in the electric power system of Claim 1,
When the self-load is a storage battery, the first information processing apparatus stores a time when the self-load is disconnected from the power system, and the scheduled start time is a time when the self-load is disconnected from the power system. A method for controlling supply and demand in an electric power system, characterized in that control is made so that the control of the power consumption of the self-load is started earlier as the speed becomes faster. A supply and demand control method for a power system according to any one of claims 1 to 3,
Attached to the generator connected to the power system is a third information processing device having a function of acquiring the current output of the generator,
The third information processing device is connected to the second information processing device so as to be communicable,
The third information processing apparatus transmits the acquired current output to the second information processing apparatus,
The second information processing apparatus
Obtaining a current supply-demand difference in the power system based on a current output of the generator received from the third information processing device and a current power consumption of the load received from the first information processing device. A supply and demand control method in a power system that is characterized. The first information processing apparatus used in the supply and demand control method for an electric power system according to any one of claims 1 to 4,
A function of acquiring current power consumption of a self-load that is a load attached to the self-load and a function of controlling power consumption of the self-load;
A communicable connection with the second information processing device,
Transmitting the acquired power consumption to the second information processing apparatus;
Upon receiving the current supply-demand difference in the power system,
Predicting the supply and demand difference of the power system when controlling the power consumption of the own load based on the received current supply and demand difference and the current power consumption of the own load,
Set the scheduled supply and demand control start time so that the power supply control of the self-load is started earlier as the predicted supply and demand difference is smaller,
Control of power consumption of the self-load is started at the scheduled start time. The second information processing apparatus used for the supply and demand control method in the power system according to any one of claims 1 to 5,
Based on the power consumption received from the first information processing apparatus, a supply-demand difference currently occurring in the power system is determined, and the determined supply-demand difference is transmitted to the first information processing apparatus that is the transmission source of the power consumption. An information processing apparatus characterized by that.

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