JP7077176B2 - System control device and system control method - Google Patents

Description

The present invention relates to a system control device for controlling a power system.

Conventionally, there is a power system control system in order to maintain a high quality power supply in a power system including equipment from production to consumption of power such as power generation equipment, power transmission equipment, substation equipment, distribution equipment, and consumer equipment. Using the power system control system, the power system operator can use the measurement results of the voltage, frequency, power, etc. of a specific measurement point in the power system to control the voltage of the fluctuating consumer power consumption. Monitor system equipment and control each equipment so that the frequency, power flow, etc. become the specified appropriate values. Further, in recent years, an attempt to determine a control value with a high degree of satisfaction has been proposed by an optimization calculation such as an optimum power flow calculation.

As prior art in this field, there is Japanese Patent Application Laid-Open No. 2016-11780 (Patent Document 1). Patent Document 1 describes an operation amount calculation device for calculating an operation amount for an operation target facility of an electric power system, the first calculation formula for calculating the cost associated with the operation for the operation target equipment, the electric power system. The second calculation formula for calculating the load margin, which is the amount of power increase up to the stable limit power, which is the power demand when the voltage becomes unstable, and the acquisition unit for acquiring the constraint conditions during operation of the operation target equipment. The operation amount for calculating the operation amount for the operation target equipment while satisfying the constraint condition and so that the predetermined index value calculated from the first calculation formula and the second calculation formula becomes a predetermined value. An operation amount calculation device characterized by comprising a calculation unit is disclosed.

Japanese Unexamined Patent Publication No. 2016-11780

Yasuji Sekine, 6 outsiders, "Optimal Power Flow Calculation for Power System << OPF; Optimal Power Flow >>", Japan Electric Association, March 2002

However, the technique described in Patent Document 1 has a problem that the operation is wasted and the operation cost increases. In the control of the power system, it is necessary to repeat the control according to the operation amount calculated according to the change of demand etc., but the operation in one operation time is canceled in the next operation time, which is a wasteful operation and the number of operations. Will increase. Among the equipment to be operated, there are equipment such as transformer tap changers and phase adjustment equipment whose maintenance cost increases according to the number of operations, and in such equipment, the increase in the number of operations increases the maintenance cost. This leads to an increase in operating costs.

The present invention has been made in consideration of the above points, and proposes a power system control device capable of suppressing unnecessary operations and reducing operation costs even when the power system is operated according to the optimum power flow calculation.

A typical example of the invention disclosed in the present application is as follows. That is, it is a system control device that controls the power flow of the power system by using the measured value acquired from the measuring device that measures the state of the power system, and is applied to at least one electric device constituting the power system. In the fixed window generation unit that generates fixed window data including the setting state and the designation of the period to which the setting state is applied, and the setting in the first electric device in the period specified by the fixed window data. The fixed window generation unit comprises an execution unit that controls the power flow of the power system by applying a state and controlling the operating state of another second electric device, and the fixed window generation unit is a predetermined total power. It is characterized in that the period specified by the fixed window data is determined by the period determined by the fluctuation range of demand.

According to one aspect of the present invention, it is possible to achieve both improvement of the system operation index and reduction of operation cost. Issues, configurations and effects other than those mentioned above will be clarified by the description of the following examples.

It is a figure which shows the whole of the system control system of Example 1. It is a figure which shows an example of the environmental state data of Example 1. FIG. It is a figure which shows an example of the device setting data of Example 1. FIG. It is a figure which shows an example of the device state data of Example 1. FIG. It is a figure which shows an example of the system composition data of Example 1. FIG. It is a figure which shows an example of the electric power prediction data of Example 1. FIG. This is an example of a flowchart of a process for controlling the optimum power system state of the first embodiment. It is an example of the flowchart of the process of generating the fixed window data of Example 1. It is a figure which shows an example of the fixed window generation condition data of Example 1. FIG. It is a figure which shows the relationship between the fluctuation of the total electric power demand of Example 1 and the time window. It is a figure which shows an example of the fixed window data of Example 1. FIG. It is a figure which shows an example of the system control data of Example 1. FIG. It is a figure which shows the example of the fixed window generation condition display screen of Example 1. FIG. It is a figure which shows the example of the fixed window data display screen of Example 1. FIG.

Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings.

<Example 1>
(Configuration of system control system)
FIG. 1 is a diagram showing the entire system control system 1 of the first embodiment.

The system control system 1 has a system control device 2 and a power system 3, and the system control device 2 and the power system 3 are communicably connected via a communication network 4. Further, the power information server 8 is communicably connected to the power information server 8 via the second communication network 7. The communication network 4 and the second communication network may be the same.

The system control device 2 includes a circuit, a printed board, a server, or a circuit having a controller such as a CPU (Central Processing Unit) or a microprocessor, a storage device such as a memory, a hard disk drive, or an SSD (Solid State Drive), and a communication device. It consists of information processing devices and the like. Note that all or part of the processing performed by the controller by executing the program may be performed by hardware (for example, FPGA). The system control device 2 includes a control unit 10 that performs various controls, a recording unit 20 that records (stores) various information, an optimum calculation unit 30 that calculates an optimum solution under predetermined conditions, and a communication network 4. A communication unit 40 that communicates with various devices via the communication unit 40, an input unit 50 for inputting various information, an output unit 60 for outputting various information, and a power information server 8 connected via a second communication network 7. It has a second communication unit 70 to be used.

The control unit 10 and the optimum calculation unit 30 may be realized by software that the controller performs processing according to various programs stored in the storage device, or may be realized by hardware such as a logic circuit. Further, the functions of the control unit 10 and the optimum calculation unit 30 are not limited to those realized by a single device, and may be realized by a plurality of devices connected so as to be able to communicate with each other.

The recording unit 20 is composed of a storage device. The communication unit 40 is composed of a communication device. The input unit 50 includes at least one pointing device such as a keyboard and a mouse, and an input device such as a touch panel and a voice instruction device. The output unit 60 includes at least one output device such as a display device, a printer, and an audio output device.

The program executed by the controller is provided to the system control device 2 via a removable medium (CD-ROM, flash memory, etc.) or a network, and is stored in a non-volatile storage device which is a non-temporary storage medium. Therefore, the system control device 2 may have an interface for reading data from the removable media.

The system control device 2 is a computer system configured on one computer physically or on a plurality of computers logically or physically configured, and is constructed on a plurality of physical computer resources. It may operate on a virtual computer.

The system control device 2 can acquire the measurement data of the power system 3 from the measurement device 5 of the power system 3 via the communication network 4 connected to the communication unit 40. Further, the system control device 2 can control the operating state of the electric device 6 by transmitting a control command to the electric device 6 of the electric power system 3.

The power system 3 includes a power generation facility (for example, a power plant) that generates power by a power generation device, a consumer facility that consumes the power generated by the power generation facility, and a power distribution facility (transmission facility,) that transmits power from the power generation facility to the consumer facility. It includes a substation facility, a power distribution facility, etc.) and a measuring device 5 for measuring the state of these facilities.

The power generation device is a device that performs thermal power generation, hydropower generation, nuclear power generation, geothermal power generation, photovoltaic power generation, wind power generation, and the like, but may be a device that generates power by other methods. The power distribution equipment includes an overhead power transmission line, an underground power transmission line, a transformer, a circuit breaker, a phase adjustment equipment, and the like, but may also include various equipment related to power transmission and distribution.

The measuring device 5 indicates a plurality of measuring devices that measure a state at a specific measuring point of the power system 3. The measurement items by the measuring device 5 include power items such as voltage, phase, and power of the power system 3, meteorological items such as temperature, wind speed, wind direction, precipitation, and solar radiation, and the setting state and operating state of the electric device 6. Various other items can be measurement items, including items and items of the operating state of equipment that changes the power flow state such as power distribution equipment and power generation equipment. The measurement points include a bus of a power generation facility, a bus of a substation facility, a power distribution facility, a consumer facility, and the like, and the number of measuring devices for one measurement point may be one or more. The measuring device 5 transmits the measured value to the system control device 2 via the communication network 4. At this time, the measuring device 5 may transmit meta information such as the measurement date and time together with the measured value.

The electric device 6 is a device for changing the power flow state of the power system 3 such as a power generation device, a transformer, a circuit breaker, and a phase adjustment facility among the devices constituting the power system 3, but other devices may be used. It may be included. Further, when the electric device 6 receives the control command transmitted by the system control device 2 via the communication network 4, the operating state can be changed according to the control command.

The power information server 8 is a server that provides future power information. Future power information includes aggregate demand for the grid. It may also include data indicating the amount of power generated by the generator and other future states of the power system.

Although the system control device 2 acquires the power prediction data from the power information server 8, the system control device 2 itself may generate all or part of the power prediction data.

(Control in system control system)
The control unit 10 of the system control device 2 includes a system state acquisition unit 101, a system control generation unit 102, a fixed window data generation unit 103, and an execution unit 104.

The system state acquisition unit 101 transmits various data transmitted by the measuring device 5 at a predetermined timing (for example, at intervals of 2 seconds) or at an instruction from the control unit 10 (for example, at a time desired by the user). And record it as the system state data 201 of the recording unit 20 together with the measurement date and time.

As shown in FIG. 1, the system state data 201 includes the environment state data 211, the device setting data 212, and the device state data 213.

FIG. 2 is a diagram showing an example of the environmental state data 211. The environmental state data 211 is data measured at a specific location in the power system 3.

The environmental state data 211 includes information such as active power, invalid power, active power generated by the power generation device, and voltage flowing through the load (device that consumes electricity in the power system 3). In the illustrated example, the environmental state data 211 includes information on the serial number D101, the measurement date and time D102, the active power D103, and the active power D104, and stores the values (measured values) of specific measurement points in time series. The measurement date and time D102, the active power D103, and the active power D104 are examples of the items to be measured, and may include items different from those shown in the figure depending on the device to be measured.

FIG. 3 is a diagram showing an example of the device setting data 212 of the electric device 6 connected to the power system 3.

The device setting data 212 includes information on the setting state of the electric device 6. In the illustrated example, the device setting data 212 has a serial number D201, a measurement date and time D202, an input amount D203 of the phase adjustment equipment 1A, an input amount D204 of the phase adjustment equipment 1B, a tap position D205 of the transformer 2A, and a tap of the transformer 2B. Information (set value) indicating the setting of the electric device 6 including the information of the position D206 is stored in time series. The input amount D203 of the phase adjustment equipment 1A, the input amount D204 of the phase adjustment equipment 1B, the tap position D205 of the transformer 2A, and the tap position D206 of the transformer 2B are items related to the setting of the electric device 6 and are measured. A combination of items that can be obtained from the device 5 can be appropriately adopted.

FIG. 4 is a diagram showing an example of device state data 213 of the electric device 6 connected to the power system 3.

The device state data 213 includes information (operating state information) indicating an operating state of a device that changes the power flow state, such as an electric device 6, a power distribution facility, and a power generation device. In the illustrated example, the device state data 213 has a serial number D301, a measurement date and time D302, an operating state D303 of the phase adjusting equipment 1A, an operating state D304 of the phase adjusting equipment 1B, an operating state D305 of the transformer 2A, and an operation of the transformer 2B. The operation state information of the electric device 6 including the information of the state D306 is stored in time series. The operating state D303 of the phase adjusting equipment 1A, the operating state D304 of the phase adjusting equipment 1B, the operating state D305 of the transformer 2A, and the operating state D306 of the transformer 2B include open / closed states of switching devices such as circuit breakers and switches. Items such as the transmission status of the transmission line may be included. Further, the device state data 213 may include an item of the operating state of the device that changes the power flow state such as the power distribution facility and the power generation device, and an item of the operating state of other devices acquired from the measuring device 5.

FIG. 5 is a diagram showing an example of system configuration data 202 of a transmission line in the power system 3.

The system configuration data 202 is recorded in advance in the recording unit 20, and includes information related to the configuration of the power system 3. In the illustrated example, the grid configuration data 202 includes information of serial number D401, name D402, rated voltage D403, reference capacity D404, line length D405, resistance D406, and reactance D407, and is stored for each transmission line. In the system configuration data 202, among the information necessary for the analysis of the power system 3, items that do not change in a short time, such as items (parameter items) of the devices constituting the power system 3 and mutual electrical connection modes of the devices, are included. Information such as is included. FIG. 5 illustrates grid configuration data for transmission lines, but may include different items for other equipment.

FIG. 6 is a diagram showing an example of the power prediction data 206 provided by the power information server 8.

The power forecast data 206 includes information indicating the state of the future power system such as the future total demand forecast. In the illustrated example, the power prediction data 206 includes information on the serial number D801, the date and time D802, and the total demand (active power) D803, and stores the total demand of the system in chronological order.

FIG. 7 is an example of a flowchart of the process in which the control unit 10 in this embodiment controls to the optimum power system state. The optimum power system state control process shown in FIG. 7 is executed by the control unit 10 when it receives an instruction via the input unit 50 or an instruction to calculate and apply the optimum power system state by a preset setting. For example, it may be repeated at intervals shorter than the time width of the fixed window, such as every 5 minutes.

First, the control unit 10 determines whether or not the fixed window data 203 valid at the current date and time exists (S101). As a result, if there is no valid fixed window data 203 (N in S101), the fixed window data generation unit 103 generates fixed window data (S102). On the other hand, if valid fixed window data exists (Y in S101), the system control generation unit 102 acquires the fixed window data (S103).

Next, the control unit 10 provides the fixed window data 203 to the optimum calculation unit 30, and acquires system control data for achieving the optimum power system state calculated based on the fixed window data (S104). ..

The optimum calculation unit 30 calculates the state of the power system 3 optimal for a predetermined purpose such as reduction of power loss and improvement of voltage stability. For example, the optimum calculation unit 30 gives an objective function representing reduction of power loss, and is a variable that satisfies other equality constraints and inequality constraints such as the constraint condition of the power flow equation of the power system 3, the voltage range, and the controllability of the device. From the combinations of, the combination of variables that minimizes or maximizes the objective function is calculated. As variables, the voltage of each bus, the input amount of the phase adjustment equipment, the tap position of the transformer, etc. are used. Further, the optimum calculation unit 30 may calculate a combination of variables by using a known optimum power flow calculation technique (see, for example, Non-Patent Document 1 “Optimal power flow calculation of electric power system”). However, the method for calculating the combination of variables in this embodiment is not limited to the method described in the above-mentioned document, and any method can be used as long as it is a method for calculating the optimum state of the power system 3 for a desired purpose. The method of may be used.

In particular, in step S104, the optimum calculation unit 30 does not target the equipment for fixing the operation amount in the fixed window of the fixed window data 203 created by the fixed window data generation unit 103, but uses the fixed window data. Under the condition that the operation amount is fixed by a predetermined operation amount, the system control data for achieving the optimum state of the power system 3 is generated. When generating the system control data, the optimum calculation unit 30 may refer to the latest system state data 201 or system configuration data 202. The system control generation unit 102 acquires the system control data generated by the optimum calculation unit 30 and stores it in the recording unit 20 as the system control data 204.

Further, the execution unit 104 generates a control command for realizing the set value described in the system control data acquired in step S104, and transmits the control command to the electric device 6 to be controlled in the power system 3 (S105). ..

Further, the control unit 10 may be instructed to calculate and apply the optimum power system state at a designated future time. When a future time is specified, the system state data 201 provided to the optimum calculation unit 30 is generated by using, for example, information indicating a future power system state included in the power prediction data 206. It becomes the data of the future power system, and the execution unit 104 generates a control command that realizes the set value described in the system control data at the specified time, and transmits it to the electric device 6 to be controlled in the power system 3. do.

FIG. 8 is an example of a flowchart of a process in which the fixed window data generation unit 103 generates fixed window data.

The fixed window data generation unit 103 acquires the fixed window generation condition data 205 of the current date and time when the generation of the fixed window data is instructed by the request from the control unit 10 (S201). Next, the system control data for achieving the optimum power system state calculated based on the current system state is acquired from the optimum calculation unit 30 (S202). In step S202, unlike step S104 in which the optimum calculation unit 30 applies the fixed window data 203 acquired in step S103 to generate fixed window data, there is no equipment for fixing the operation amount based on the fixed window data 203. Under the conditions, the system control data for achieving the optimum state of the power system 3 is calculated. The optimum calculation unit 30 may refer to the latest system state data 201 or system configuration data 202 when generating system control data for generating fixed window data.

Subsequently, the data of the device to be fixed in the fixed window generation condition data is extracted from the acquired system control data, and the extracted device data is registered as the fixed window data 203 (S203).

In this embodiment, the optimum calculation unit 30 operates at two locations, step S104 and step S102 (step S202). In step S104, the optimum calculation unit 30 generates system control data for achieving the optimum state of the power system 3 under the condition that the operation amount of the equipment defined by the fixed window data 203 is fixed. On the other hand, in step S202, the optimum calculation unit 30 calculates system control data for achieving the optimum state of the power system 3 under the condition that there is no equipment for fixing the operation amount.

That is, the period in which the system operation index is sufficiently improved by optimizing the electric equipment having a low operating cost is set as a fixed window, and the operation amount of the equipment having a high operating cost is fixed in the fixed window. The power system 3 is controlled by the calculation result to be optimized.

Therefore, the optimum calculation unit 30 generates fixed window data in accordance with the timing of the fixed window (S102), but generates system control data in operation at a predetermined timing shorter than the time width of the fixed window (S104). .. That is, the device whose operation amount is fixed by the fixed window data 203 is controlled so that the operation amount is changed at a long time interval, and the device whose operation amount is not fixed by the fixed window data 203 is controlled so that the operation amount is changed at a short time interval. Will be done.

FIG. 9 is a diagram showing an example of fixed window generation condition data 205 in this embodiment.

The fixed window generation condition data 205 includes identification information D501 that can identify the data, fixed window start time D502, fixed window end time D503, and whether or not the equipment can be operated (fixed without operation) within the fixed window period. Or) Contains information from D504 to D507. Operability D504 to D507 are conditions for operation enablement of the electric device 6, and may describe equipment other than the phase adjustment equipment and the generator (circuit breaker, switch, etc.). For example, for the data whose identification information is C1, the fixed window is from 0:00 to 1:00 every day, and during this period, the phase adjustment equipments 1A, 1B ... are not fixed and controlled, and the generators 2A, 2B ... Are controlled. show. In the fixed window generation condition data 205, equipment with a high operation cost cannot be operated within the fixed window period (the operation amount is fixed), and equipment with a low operation cost is set so that the operation amount can be operated even within the fixed window period. Will be done.

The fixed window start time D502 and the fixed window end time D503 included in the fixed window generation condition data 205 are periods during which the future total demand shown in the power forecast data 206 falls within a constant fluctuation range predetermined by the grid operator. Should be calculated and set to automatic. This is because if the aggregate demand is within a certain fluctuation range, optimization with equipment with low operating costs is expected to have a sufficient effect of improving the grid operation index.

As shown in FIG. 10, the period within which the fluctuation range is set in advance by the grid operator is the time range in which the aggregate demand for electric power is within the range divided by the fluctuation range, and the aggregate demand for electric power. The length of this period varies depending on the state of fluctuation. That is, the period of the time window ends at the time when the total power demand changes by a predetermined fluctuation range from the total power demand at the start time of the time window. For example, in the example shown in FIG. 10, in the time window 2, the period of the time window 2 is shortened because the fluctuation of the total power demand is larger than that of the time windows 1 and 3. On the other hand, in the time window 3, since the fluctuation of the total power demand is smaller than that of the time windows 2 and 4, the period of the time window 3 becomes long.

FIG. 11 is a diagram showing an example of fixed window data 203 in this embodiment.

The fixed window data 203 is fixed in the identification information D601 that can identify the data, the identification information D602 of the corresponding fixed window generation condition data, the start date / time D603 and the end date / time D604 in which the fixed window data is valid, and the fixed window. Includes information on equipment operation amounts D605 to D608. The operation amounts D605 to D608 are operation amounts in which the electric device 6 is fixedly operated within the time of the fixed window, and are set for the equipment set as inoperable in the fixed window generation condition data 205. The operation amounts D605 to D608 may be defined for other devices such as circuit breakers and switches.

FIG. 12 is a diagram showing an example of system control data 204 for setting the power system 3 to a predetermined state.

The system control data 204 includes the identification information D701 that can identify the data, the generation date and time D702 of the data, and the information of the set values D703 to D706 of the equipment to be controlled. The set values D703 to D706 are set values under which the electric device 6 is controlled, and may be set for devices other than the phase adjustment equipment and the generator (circuit breaker, switch, etc.).

FIG. 13 is a diagram showing an example of a fixed window generation condition display screen.

The fixed window generation condition display screen is called from the menu screen and displays the contents of the fixed window generation condition data 205. Since the content of the fixed window generation condition data 205 displayed on the fixed window generation condition display screen is the same as that described with reference to FIG. 9, detailed description thereof will be omitted. Further, on the fixed window generation condition display screen, a part of the fixed window generation condition data 205 may be displayed, or data not included in the fixed window generation condition data 205 may be displayed together.

The fixed window generation condition display screen is for closing the [Change] button for changing the fixed window generation condition (operability for each facility) and for closing the fixed window generation condition display screen and returning to the menu screen of the caller. It may include a Back button.

The fixed window generation condition display screen is displayed on the display screen of the information processing device (computer) which is the system control device 2 and the terminal connected to the system control device 2. The user of the system control system 1 can set whether or not to operate each facility for each fixed window (time zone) by using the fixed window generation condition display screen.

FIG. 14 is a diagram showing an example of a fixed window data display screen.

The fixed window data display screen is called from the menu screen and displays the contents of the fixed window data 203. Since the content of the fixed window data 203 displayed on the fixed window data display screen is the same as that described with reference to FIG. 11, detailed description thereof will be omitted. Further, on the fixed window data display screen, a part of the fixed window data 203 may be displayed, or data not included in the fixed window data 203 may be displayed together.

The fixed window data display screen has a [Change] button for changing the fixed window generation conditions (setting values of equipment that cannot be operated), and a [Change] button for closing the fixed window data display screen and returning to the caller's menu screen. It may include a Back button.

The fixed window data display screen is displayed on the display screen of the information processing device (computer) which is the system control device 2 and the terminal connected to the system control device 2. The user of the system control system 1 can set whether or not to operate each facility for each fixed window (time zone) by using the fixed window generation condition display screen.

As described above, in the system control device 2 of the embodiment of the present invention, the setting state applied to at least one electric device constituting the power system 3 and the designation of the period to which the setting state is applied are specified. The setting state is applied to the first electric device in the period specified by the fixed window data generation unit 103 that generates the fixed window data 203 including the fixed window data 203, and the operation of the other second electric device. The fixed window data generation unit 103 includes an execution unit 104 that controls the power flow of the power system 3 by controlling the state, and the fixed window data generation unit 103 determines a period specified by the fixed window data 203 according to fluctuations in power demand. Therefore, we set a fixed window, which is a period in which the effect of improving the grid operation index is expected to be sufficient by optimizing only the equipment with low operation cost, and for the fixed window, optimize under the condition that the operation amount of the equipment with high operation cost is fixed. By controlling based on the calculation results, it is possible to improve the grid operation index (for example, power transmission loss) by optimization while suppressing the number of operations of equipment with high operation cost, and to improve the grid operation index and reduce the operation cost at the same time. ..

Further, the first electric device is provided with an optimum calculation unit 30 for calculating the optimum state of the power system 3, and the fixed window data generation unit 103 realizes the optimum state of the power system 3 at the timing of generating the fixed window data 203. The setting state of the second electric device is acquired from the optimum calculation unit 30, and the execution unit 104 sets the setting state of the second electric device that realizes the optimum state of the power system 3 during the control using the fixed window data 203. Since it is obtained from, it is possible to optimize it more realistically.

Further, the fixed window generation condition data 205 including the information regarding the controllability of each of the electric devices in the period specified by the fixed window data 203 is held, and the fixed window data generation unit 103 holds the fixed window data from the fixed window generation condition data. Since 203 is generated, various conditions (for example, time width) can be changed, and flexible control becomes possible.

Further, since the fixed window data generation unit 103 generates the fixed window data 203 before the start of the period specified by the fixed window data 203, the fixed window data 203 is repeatedly generated, and control suitable for the situation is possible. Become.

Further, the fixed window data generation unit 103 includes an optimum calculation unit 30 for calculating the optimum state of the power system 3, and the fixed window data generation unit 103 calculates the setting state of the first electric device using the latest measurement result of the state of the power system. Is acquired from the optimum calculation unit 30, and the execution unit 104 acquires the setting state of the second electric device calculated using the latest measurement result of the state of the power system from the optimum calculation unit 30, so that it is the latest. Data can be used for situational control.

It should be noted that the present invention is not limited to the above-mentioned examples, but includes various modifications and equivalent configurations within the scope of the attached claims. For example, the above-mentioned examples have been described in detail in order to explain the present invention in an easy-to-understand manner, and the present invention is not necessarily limited to those having all the described configurations. Further, a part of the configuration of one embodiment may be replaced with the configuration of another embodiment. Further, the configuration of another embodiment may be added to the configuration of one embodiment. In addition, other configurations may be added / deleted / replaced with respect to a part of the configurations of each embodiment.

Further, each configuration, function, processing unit, processing means, etc. described above may be realized by hardware by designing a part or all of them by, for example, an integrated circuit, and the processor realizes each function. It may be realized by software by interpreting and executing the program to be executed.

Information such as programs, tables, and files that realize each function can be stored in a memory, a hard disk, a storage device such as an SSD (Solid State Drive), or a recording medium such as an IC card, an SD card, or a DVD.

In addition, the control lines and information lines show what is considered necessary for explanation, and do not necessarily show all the control lines and information lines necessary for mounting. In practice, it can be considered that almost all configurations are interconnected.

1 System control system 2 System control device 3 Power system 4 Communication network 5 Measuring equipment 6 Electrical equipment 10 Control unit 20 Recording unit 30 Optimal calculation unit 40 Communication unit 50 Input unit 60 Output unit 101 System status acquisition unit 102 System control generation unit 103 Fixed window data generation unit 104 Execution unit 201 System status data 202 System configuration data 203 Fixed window data 204 System control data 205 Fixed window generation condition data 211 Environmental status data 212 Device setting data 213 Device status data

Claims (10)

It is a system control device that controls the power flow of the power system by using the measured value acquired from the measuring device that measures the state of the power system.
A fixed window generator that generates fixed window data including a setting state applied to at least one electric device constituting the power system and a designation of a period to which the setting state is applied.
During the period specified by the fixed window data, the setting state is applied to the first electric device, and the operating state of the other second electric device is controlled to control the power flow of the power system. With an execution part,
The fixed window generation unit is a system control device, characterized in that a period specified by the fixed window data is determined by a period determined by a fluctuation range of a predetermined total electric power demand. The system control device according to claim 1.
It is equipped with an optimum calculation unit that calculates the optimum state of the power system.
The fixed window generation unit acquires the setting state of the first electric device that realizes the optimum state of the power system from the optimum calculation unit at the timing of generating the fixed window data.
The execution unit is a system control device characterized in that, during control using the fixed window data, the setting state of the second electric device that realizes the optimum state of the power system is acquired from the optimum calculation unit. .. The system control device according to claim 1.
The fixed window generation condition data including the information regarding the controllability of each of the electric devices in the period specified by the fixed window data is retained.
The fixed window generation unit is a system control device characterized in that the fixed window data is generated from the fixed window generation condition data. The system control device according to claim 1.
The fixed window generation unit is a system control device characterized in that the fixed window data is generated before the start of the period specified by the fixed window data. The system control device according to claim 1.
It is equipped with an optimum calculation unit that calculates the optimum state of the power system.
The fixed window generation unit acquires the setting state of the first electric device, which is calculated using the latest measurement result of the state of the electric power system, from the optimum calculation unit.
The execution unit is a system control device characterized in that the setting state of the second electric device, which is calculated using the latest measurement result of the state of the electric power system, is acquired from the optimum calculation unit. It is a system control method executed by a system control device that controls the power flow of the power system using the measured values acquired from the measuring device that measures the state of the power system.
The system control device has an arithmetic unit that executes a predetermined process and a storage device connected to the arithmetic unit.
The method is
A fixed window generation step in which the arithmetic unit generates fixed window data including a setting state applied to at least one electric device constituting the power system and a designation of a period to which the setting state is applied.
The arithmetic unit applies the set state to the first electric device and controls the operating state of the other second electric device in the period specified by the fixed window data, whereby the power system of the power system. Including execution steps to control power flow
In the fixed window generation step, the system control method is characterized in that the arithmetic unit determines a period specified by the fixed window data within a period determined by a fluctuation range of a predetermined total power demand. The system control method according to claim 6.
In the fixed window generation step, the arithmetic unit acquires the setting state of the first electric device that realizes the optimum state of the power system at the timing of generating the fixed window data.
In the execution step, the system control method is characterized in that the arithmetic unit acquires the setting state of the second electric device that realizes the optimum state of the power system during control using the fixed window data. .. The system control method according to claim 6.
The system control device holds fixed window generation condition data including information on controllability of each of the electric devices in the period specified by the fixed window data.
In the fixed window generation step, the system control method is characterized in that the arithmetic unit generates the fixed window data from the fixed window generation condition data. The system control method according to claim 6.
In the fixed window generation step, the system control method is characterized in that the arithmetic unit generates the fixed window data before the start of the period specified by the fixed window data. The system control method according to claim 6.
In the fixed window generation step, the arithmetic unit acquires the setting state of the first electric device calculated by using the latest measurement result of the state of the electric power system.
In the execution step, the system control method is characterized in that the arithmetic unit acquires the setting state of the second electric device calculated by using the latest measurement result of the state of the electric power system.

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