JP4627645B2 - Pumped fuel cost calculation device, pumped fuel cost calculation method, and program - Google Patents

Description

  The present invention relates to a pumped fuel cost calculation device, a pumped fuel cost calculation method, and a program.

In pumped hydropower generation, the water in the lower pond is pumped to the upper pond during periods of low power demand, such as at night, and the water stored in the upper pond is dropped into the lower pond during the daytime hours when power demand peaks. Power generation is performed by the above (for example, Patent Document 1).
JP 2001-172948 A

By the way, the electric power necessary for operating the pump during pumping is supplied by increasing the output amount of electric power from a thermal power plant such as oil or coal.
Therefore, if the fuel cost required to increase the power output of the thermal power generator at the time of pumping is not lower than the fuel cost that is suppressed in the peak hours during the daytime by the power obtained by the pumped power generation, it is economical. Can not get a special effect.
However, since multiple thermal power generators with different fuel and fuel consumption characteristics are used to increase the power output during pumping, it takes considerable effort and time to manually calculate the cost required to increase the power output. Cost.

  The present invention has been made in view of such a problem, and provides a pumped fuel cost calculating device, a pumped fuel cost calculating method, and a program for calculating a cost required when a thermal power generator increases output during pumping. It is in.

（ただし、前記複数の発電機を発電機ｉ（ｉ＝１・・・ｎ；ｎは発電機の台数）として、Piaは、発電機ｉについての前記揚水時出力量記憶部に記憶されている前記揚水時出力量、Pibは、発電機ｉについての前記揚水動力控除後増分単価に対する前記電力の出力量、λia及びλibは、それぞれ、発電機ｉについての前記推移データにおいて電力の出力量をPia及びPibとしたときの増分単価）
により算出することとする。 In order to achieve the above object, the invention according to claim 1 of the present invention calculates the fuel cost required for pumping in pumped-storage power generation using the power output by a plurality of generators. A pumping fuel cost calculation device, comprising a CPU and a memory, an incremental unit price storage unit, a pumping output amount storage unit, a pumping power amount storage unit, which is a storage area provided in the memory, and the CPU in the memory An incremental unit price determination unit after subtraction of pumping power and a pumped fuel cost calculation unit realized by executing a stored program, the incremental unit price storage unit identifying a generator identifier for identifying the generator And transition data, which is data indicating a transition with the output amount of the electric power of an incremental unit price that is an incremental value of fuel cost when increasing the output amount of electric power in the generator by a predetermined amount, The output amount storage unit during pumping stores the generator identifier and the output amount during pumping, which is the output amount of power in the generator during pumping, in association with each other. The pumping power amount that is the power amount used in the storage unit is stored, and the incremental unit price after pumping power subtraction unit determines the unit price after subtracting the pumping power that is the unit price after the pumping power subtraction. The output of the electric power obtained by referring to the incremental unit price storage unit with respect to the output amount during pumping stored in the generator output amount storage unit and the incremental unit price after subtraction of the pumping power in each generator. Equal λ so that the sum of the difference between the power amount and the pumped power amount stored in the pumped power amount storage unit is equal, and the unit price in each of the generators after subtraction of pumping power is equal. Determined using
The fuel cost Cpump required for the pumping is calculated with respect to the determined output unit price after subtraction of the pumping power, the pumped output amount stored in the pumped output amount storage unit , and the incremental unit price. Based on the transition data stored in the storage unit

(However, the plurality of generators are set as generators i (i = 1... N; n is the number of generators), and Pia is stored in the pumping output amount storage unit for the generator i. The output amount at the time of pumping, Pib is the output amount of the electric power with respect to the incremental unit price after subtraction of the pumping power for the generator i, and λia and λib are the output amounts of electric power in the transition data for the generator i, respectively. And incremental unit price when using Pib)
It shall be calculated by

  Here, the pumped fuel cost calculation device is a computer device such as a personal computer or a workstation. And the generator which outputs the electric power used for pumping is a thermal power generator using fuels, such as coal and oil. Also, the output amount of these generators is the law that the total fuel cost is the cheapest when the increment unit price, which is the increment value of the fuel cost when increasing the power output amount by a predetermined amount, is equal in each generator. It is determined according to a certain incremental fuel cost method (equal λ method). In general, the incremental unit price of each generator increases as the output amount of power increases.

  In such an environment, the memory of the pumped fuel cost calculation device has the unit price increment data for each generator, the output amount of each generator at the time of pumping, and the power used as the power for the pump such as a pump. The fuel cost required for pumping can be calculated simply by storing the amount.

  Moreover, invention of Claim 2 among this invention is a pumping fuel cost calculation apparatus of Claim 1, Comprising: Pumping implement | achieved when the said CPU runs the program memorize | stored in the said memory An output amount receiving unit and a pumping power amount receiving unit, and the pumping output amount receiving unit is connected to be communicable and is transmitted from a computer managing the output amount of the power in the generator The generator identifier and the pumping output amount are received, the generator identifier and the pumping output amount are associated and recorded in the pumping output amount storage unit, and the pumping power reception unit is communicably connected. Then, the pumped power amount transmitted from the computer managing the power amount used for pumping is received, and the pumped power amount is recorded in the pumped power amount storage unit.

  In the power plant, an automatic power supply system is operating to control the output amount of each generator and control the power supply to a pump used for pumping water. Therefore, by receiving the output amount of each generator at the time of pumping and the amount of electric power supplied to the pump from the computer constituting the automatic power supply system, work such as recording and input of the output amount and the electric energy is performed. The fuel cost required for pumping can be calculated automatically.

（ただし、前記複数の発電機を発電機ｉ（ｉ＝１・・・ｎ；ｎは発電機の台数）として、Piaは、発電機ｉについての前記揚水時出力量記憶部に記憶されている前記揚水時出力量、Pibは、発電機ｉについての前記揚水動力控除後増分単価に対する前記電力の出力量、λia及びλibは、それぞれ、発電機ｉについての前記推移データにおいて電力の出力量をPia及びPibとしたときの増分単価）
により算出することとする。 Moreover, the invention according to claim 3 of the present invention is to identify the generator for the fuel cost required for pumping in the pumped-type power generation that performs pumping using electric power output from a plurality of generators. The generator identifier is associated with transition data that is data indicating a transition associated with the output amount of the electric power of an incremental unit price that is an increment value of the fuel cost when the output amount of the electric power is increased by a predetermined amount in the generator. A computer comprising: an incremental unit price storage unit for storing; a generator identifier; and a pumping output amount storage unit that stores a pumping output amount that is an output amount of power in the generator during pumping in association with each other. The computer is configured to calculate an increment unit price after subtraction of pumping power, which is an increment unit price after subtraction of pumping power, in each of the plurality of generators. The sum of the difference between the pumping output amount stored in the power storage unit and the output amount of the electric power obtained by referring to the incremental unit storage unit with respect to the incremental unit price after subtraction of the pumping power is the pumping It is determined using the equal λ method so that the pumping power amount stored in the power amount storage unit is equal and the unit price in each of the generators after subtraction of pumping power is equal .
The fuel cost Cpump required for the pumping is calculated with respect to the determined output unit price after subtraction of the pumping power, the pumped output amount stored in the pumped output amount storage unit , and the incremental unit price. Based on the transition data stored in the storage unit

(However, the plurality of generators are set as generators i (i = 1... N; n is the number of generators), and Pia is stored in the pumping output amount storage unit for the generator i. The output amount at the time of pumping, Pib is the output amount of the electric power with respect to the incremental unit price after subtraction of the pumping power for the generator i, and λia and λib are the output amounts of electric power in the transition data for the generator i, respectively. And incremental unit price when using Pib)
It shall be calculated by

（ただし、前記複数の発電機を発電機ｉ（ｉ＝１・・・ｎ；ｎは発電機の台数）として、Piaは、発電機ｉについての前記揚水時出力量記憶部に記憶されている前記揚水時出力量、Pibは、発電機ｉについての前記揚水動力控除後増分単価に対する前記電力の出力量、λia及びλibは、それぞれ、発電機ｉについての前記推移データにおいて電力の出力量をPia及びPibとしたときの増分単価）
により算出する手順と、を実行させることとする。 Moreover, invention of Claim 4 among this invention is a program which calculates the fuel cost required for pumping in the pumping-type power generation which pumps up using the electric power output by several generator, A generator identifier for identifying a generator, and data indicating a transition with the output amount of the electric power of an incremental unit price that is an increment value of fuel cost when the output amount of electric power in the generator is increased by a predetermined amount Incremental unit price storage unit that stores data in association with each other, the generator identifier, and the output amount during pumping that is the output amount of power in the generator during pumping and stored in association with each other A storage unit that stores an incremental unit price after subtraction of pumping power, which is an incremental unit price after subtraction of pumping power, in the generator output amount storage unit of each of the plurality of generators. The sum of the difference between the output amount during pumping and the output amount of the electric power obtained by referring to the incremental unit price storage unit with respect to the incremental unit price after subtraction of the pumping power is stored in the pumped power amount storage unit A procedure for determining using the equal λ method so that the stored pumping power amount is equal and the unit price in each of the generators after subtraction of pumping power is equal ;
The fuel cost Cpump required for the pumping is calculated with respect to the determined output unit price after subtraction of the pumping power, the pumped output amount stored in the pumped output amount storage unit , and the incremental unit price. Based on the transition data stored in the storage unit

(However, the plurality of generators are set as generators i (i = 1... N; n is the number of generators), and Pia is stored in the pumping output amount storage unit for the generator i. The output amount at the time of pumping, Pib is the output amount of the electric power with respect to the incremental unit price after subtraction of the pumping power for the generator i, and λia and λib are the output amounts of electric power in the transition data for the generator i, respectively. And incremental unit price when using Pib)
And the procedure of calculating by the above.

  According to the present invention, it is possible to provide a pumped fuel cost calculation device, a pumped fuel cost calculation method, and a program for calculating a cost required when a thermal power generator increases output during pumping.

== Overall structure ==
FIG. 1 is a diagram showing a configuration of an information processing system including a pumped fuel cost calculation device 1 according to an embodiment of the present invention. The pumped fuel cost calculation device 1 is connected to the generator output control device 2 and the pumped power control device 3 in the automatic power feeding system via the network 4 so as to communicate with each other.

  The pumped fuel cost calculation device 1 is a computer such as a personal computer or a workstation. The generator output control device 2 is a computer that controls output amounts of various generators in a thermal power plant, a nuclear power plant, or the like. The pumped-power control apparatus 3 is a computer that controls power supplied to a pump that pumps water from the lower pond to the upper pond in pumped-type power generation. The generator output control device 2 and the pumped water power control device 3 can be realized by a single computer. The network 4 is a communication line such as a dedicated line or a LAN (Local Area Network).

== Hardware configuration ==
FIG. 2 is a diagram illustrating a hardware configuration of the pumped fuel cost calculation device 1. The pumped fuel cost calculation device 1 includes a CPU 10, a memory 11, a storage device 12, a recording medium reading device 13, a communication interface 14, an input device 15, and an output device 16.

  A program stored in the storage device 12 is sequentially stored in the memory 11, and the CPU 10 executes the program stored in the memory 11. Here, the storage device 12 is, for example, a hard disk drive. The recording medium reader 13 can also read a program recorded on a recording medium 17 such as a CD-ROM and store it in the storage device 12.

  The communication interface 14 is an interface for transmitting and receiving data to and from the generator output control device 2 and the pumped water control device 3 via the network 4. The input device 15 is a device for inputting data, such as a keyboard and a mouse. The output device 16 is a device for outputting data, such as a display or a printer.

== Data structure and functional configuration ==
Next, the structure of data stored in the memory 11 of the pumped fuel cost calculation device 1 and the functions of the pumped fuel cost calculation device 1 will be described. FIG. 3 is a diagram illustrating a storage unit and a function unit included in the pumped fuel cost calculation device 1. The storage unit includes an incremental unit price storage unit 20, a pumping output amount storage unit 21, and a pumping power amount storage unit 22, which are storage areas provided in the memory 11. In addition, the function unit is realized by the CPU 10 executing a program stored in the memory 11. The pumping output amount receiving unit 23, the pumping power amount receiving unit 24, and the incremental unit price determining unit 25 after subtracting pumping power. , And a pumped fuel cost calculation unit 26 is included.

  First, the storage unit will be described. FIG. 4 is a diagram illustrating a data structure of the incremental unit price storage unit 20. The increment unit price storage unit 20 stores a generator identifier, a minimum output amount, an increment unit price at the minimum output amount, a maximum output amount, and an increment unit price at the maximum output amount in association with each other. The increment unit price is an increment value of the fuel cost when the output amount of electric power is increased by a predetermined amount in the generator.

  The generator identifier is an identifier for identifying a thermal power generator. The minimum output amount is the output amount of the lowest power in the thermal power generator. The incremental unit price at the minimum output amount is an incremental unit price when the thermal power generator is operated at the minimum output. The maximum output amount is the maximum power output amount in the thermal power generator. The incremental unit price at the maximum output amount is an incremental unit price when the thermal power generator is operated at the maximum output. In the example of FIG. 4, these values for the generator (i) [i = 1 to 4] are shown. Here, the minimum output amount of the generator (i) is expressed as Pimin, the maximum output amount is expressed as Pimax, the incremental unit price at the minimum output amount is expressed as λimin, and the incremental unit price at the maximum output amount is expressed as λimax.

  FIG. 5 is a diagram showing a transition with the output amount (Pi) of the electric power of the incremental unit price (λi) of the generator (i) [i = 1 to 4]. As shown in the figure, the transition with the output amount (Pi) of the incremental unit price (λi) in the generator (i) is indicated by a straight line connecting (Pimin, λimin) and (Pimax, λimax). That is, (Pimin, λimin) and (Pimax, λimax) stored in the incremental unit price storage unit 20 are referred to as transition data that is a data indicating a transition with the output amount of the electric power of the incremental unit price in the generator (i). be able to.

  In this embodiment, (Pimin, λimin) and (Pimax, λimax) are used as transition data, and the transition of the incremental unit price is indicated by a straight line connecting (Pimin, λimin) and (Pimax, λimax). However, it is not limited to this. For example, it is possible to use a linear expression representing a transition of the increment unit price as the transition data. That is, if the transition of the incremental unit price in the generator (i) is expressed by a linear expression of “λi = AiPi + Bi (where Pimin ≦ Pi ≦ Pimax)”, the slope (Ai) of the linear expression, The intercept (Bi) and the upper and lower limits (Pimin, Pimax) of the range can be used as transition data for the generator (i). Further, for example, a set of a large number of (Pi, λi) can be used as transition data for the generator (i). In this case, the transition of the incremental unit price is indicated by a line obtained by connecting (Pi, λi) in ascending order of the power output amount (Pi).

  FIG. 6 is a diagram showing a data structure of the output amount storage unit 21 during pumping. The pumping output amount storage unit 21 stores a generator identifier and a pumping output amount in association with each other. The output amount (Pia) at the time of pumping is the output amount of the electric power of the generator (i) at the time of pumping. FIG. 7 is a diagram illustrating a data structure of the pumped-storage electric energy storage unit 22. The pumping power storage unit 22 stores pumping power (Ppump), which is the power supplied to the pump that performs pumping.

  Next, the functional unit will be described. The pumping output amount receiving unit 23 receives the generator identifier and the pumping output amount transmitted from the generator output control device 2, and associates the generator identifier and the pumping output amount with the pumping output amount. Record in the storage unit 21. In addition, the pumping power reception unit 24 receives the pumping power transmitted from the pumping power control device 3 and records the pumping power in the pumping power storage unit 22.

  The incremental unit price determination unit 25 after subtraction of pumping power is the unit price after subtraction of pumping power (Λ), which is the unit price of the generator after subtraction of pumping power, and the pumping power (Ppump), pumping output (Pia), and Determine based on transition data. In other words, the sum of the difference between the output amount (Pia) at the time of pumping and the output amount (Pib) of the power with respect to the incremental unit price (Λ) after subtraction of the pumping power becomes the pumping power amount (Ppump). The incremental unit price (Λ) after subtraction of the pumping power is determined. Then, the pumped fuel cost calculation unit 26 calculates the fuel cost required for pumping based on the output amount of electricity (Pib), the output amount during pumping (Pia), and the transition data with respect to the incremental unit price (Λ) after subtraction of pumping power. calculate.

== Pumping fuel cost calculation process ==
Next, a pumped fuel cost calculation process, which is a process for calculating the fuel cost required for pumping by the pumped fuel cost calculating apparatus 1, will be described. FIG. 8 is a flowchart of the pumped fuel cost calculation process.

  First, the pumping output amount receiving unit 23 receives the generator identifier and the pumping output amount of each generator transmitted from the generator output control device 2 (S801), and the generator identifier and the pumping output. The power is associated and recorded in the pumping output amount storage unit 21 (S802). Then, the pumping power reception unit 24 receives the pumping power transmitted from the pumping power controller 3 (S803), and records the pumping power in the pumping power storage unit 22 (S804).

Subsequently, the incremental unit price determination unit 25 after subtraction of pumping power obtains the incremental unit price (Λ) after subtraction of pumping power that satisfies Expressions (1) and (2) (S805). Here, Ai and Bi in Equation (1) are the slope and intercept of the linear equation obtained by connecting (Pimin, λimin) and (Pimax, λimax) of the generator (i). Moreover, n in Formula (1) and Formula (2) is the number of thermal power generators that generate electric power used for pumping, and Pib is the output amount of electric power from the generator (i) after subtraction of pumping power.

  Expression (1) represents that the output amount of each generator is operated in accordance with the equal incremental fuel cost method, and the increment unit price in each generator after deduction of pumping power is equal. Equation (2) is the sum of the difference between the power output (Pia) of each generator at the time of pumping and the power output (Pib) of each generator after deduction of pumping power. Represents the amount of power (Ppump).

  However, when determining Pib and Λ, it is necessary to consider the minimum output amount (Pimin) and the maximum output amount (Pimax) of each generator. Therefore, the incremental unit price determination unit 25 after subtraction of pumping power confirms whether there is a Pib that satisfies Equation (1) and Equation (2) that exceeds Pia (S806). When Pib> Pia is satisfied (S806: Y), the incremental unit price determination unit 25 after subtraction of pumping power sets Pia to the Pi of the generator (i) (S807), and again formulas (1) and (2) The incremental unit price after subtraction of pumping power (Λ) and the output amount (Pib) of electric power after subtraction of pumping power of each generator are obtained (S805).

  And if there is no Pib that exceeds Pia (S806: N), is the incremental unit price determination unit 25 after subtraction of pumping power out of Pib that satisfies Equation (1) and Equation (2) less than Pimin? Confirm (S808). When Pib <Pimin is satisfied (S808: Y), the incremental unit price determination unit 25 after subtraction of pumping power sets Pimin to the Pi of the generator (i) (S809), and again formulas (1) and (2) The incremental unit price after subtraction of pumping power (Λ) and the output amount (Pib) of electric power after subtraction of pumping power of each generator are obtained (S805).

  The incremental unit price determination unit 25 after subtraction of pumping power determines Λ obtained by the processing of S805 to S809 as the incremental unit price after subtraction of pumping power (S810), and Pib is the output amount of electric power after subtracting the pumping power of each generator (S811).

  9 shows the unit price (Λ) after subtraction of pumping power and the output amount of electric power after subtraction of pumping power for each generator (i) [i = 1 to 4] illustrated in FIGS. Pib). The pumping output (Pia) and pumping power (Ppump) are as shown in FIGS. As shown in the figure, the incremental unit price after subtraction of pumping power (Λ) determined by the pumping power subtraction incremental unit price determination unit 25 is 550 sen / kWh. The power output amount (Pib) after subtracting the pumping power of each generator is required to satisfy "AiPib + Bi = 550". As mentioned above, the minimum output amount (Pimin) and the maximum output amount (Pimax) Is corrected in consideration of That is, P1b in the generator 1 is corrected to P1min, and P4b in the generator 4 is corrected to P4a.

In this way, when the unit price after subtraction of pumping power (Λ) and the output amount (Pib) of electric power after subtraction of pumping power are determined, the pumped fuel cost calculation unit 26 calculates the pumping water based on the equation (3). The fuel cost (Cpump) required for the operation is calculated (S812). Here, λia is an incremental unit price for the power output amount (Pia) during pumping of the generator (i), and λib is an incremental unit price for the power output amount (Pib) after subtraction of pumping power. Note that λia and λib are obtained based on the linear expression “λi = AiPi + Bi” indicated by the transition data.

Further, the pumped fuel cost calculation unit 26 calculates the unit price (X) of the fuel cost required for pumping based on the equation (4). Here, η is the pump efficiency in pumping. The pump efficiency is a value indicating the ratio of energy used as actual power, excluding loss due to machine friction, etc., in the amount of electric power supplied to the pump, and is generally about 0.7.

  In this embodiment, the pumping output amount (Pia) is stored in the pumping output amount storage unit 21 one by one for each generator, and one pumping power amount (Ppump) is stored in the pumping power amount storage unit 22. Although it has been stored, the output amount (Pia) during pumping and the pumping power amount (Ppump) at a plurality of times may be stored. For example, the pumping fuel cost calculation device 1 stores the pumping output amount (Pia) and pumping power amount (Ppump) transmitted from the generator output control device 2 and the pumping control device 3 every hour. It can also be stored in the unit 21 and the pumped water storage unit 22. And the pumping fuel cost calculation apparatus 1 can also calculate the fuel cost required for pumping in each time according to the above-mentioned process (S805-S813), and can obtain | require the average value of the calculated fuel cost of each time. is there. Moreover, the electric energy memorize | stored in the pumping electric energy storage part 22 may be the sum total of the electric energy of a some pumping unit.

  As explained above, the memory 11 of the pumped fuel cost calculation device 1 stores the transition data of the incremental unit price at each generator, the output amount (Pia) of each generator at the time of pumping, and the pumping equipment such as a pump. The fuel cost (Cpump) required for pumping and the unit price (X) of the fuel cost can be calculated only by storing the amount of power (Ppump) used as power.

  Moreover, by receiving the output amount (Pia) of each generator at the time of pumping and the amount of power (Ppump) fed to the pump from the generator output control device 2 and the pumped water control device 3 constituting the automatic power feeding system The fuel cost (Cpump) required for pumping and the unit price (X) of the fuel cost can be automatically calculated without performing operations such as recording and inputting the output amount and the electric energy.

  Although the embodiment of the present invention has been described above, the above description of the embodiment is intended to facilitate understanding of the present invention and is not intended to limit the present invention. It goes without saying that the present invention can be changed and improved without departing from the gist thereof, and that the present invention includes equivalents thereof.

It is a figure which shows the structure of the information processing system containing the pumped fuel cost calculation apparatus which is one Embodiment of this invention. It is a figure which shows the hardware constitutions of a pumping fuel cost calculation apparatus. It is a figure which shows the memory | storage part and function part with which a pumping fuel cost calculation apparatus is provided. It is a figure which shows the data structure of an incremental unit price memory | storage part. It is a figure which shows transition with the output amount (P) of the electric power of the incremental unit price ((lambda)) of the generator 1-the generator 4. FIG. It is a figure which shows the data structure of the output amount memory | storage part at the time of pumping. It is a figure which shows the data structure of a pumping energy storage part. It is a flowchart of a pumping fuel cost calculation process. It is a figure which shows the output amount (Pib) of the electric power after subtraction of the pumping power of each generator with respect to the generator 1-the generator 4 (Λ) and the pumping power of each generator.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Pumped fuel cost calculation device 2 Generator output control device 3 Pumped power control device 4 Network 10 CPU 11 Memory 12 Storage device 13 Recording medium reader 14 Communication interface 15 Input device 16 Output device 17 Recording medium 20 Incremental unit price storage unit 21 Pumped water Time output amount storage unit 22 Pumped power amount storage unit 23 Pumping output amount reception unit 24 Pumped power amount reception unit 25 Incremental unit price determination unit after pumping power deduction 26 Pumped fuel cost calculation unit

Claims (4)

A pumped fuel cost calculation device for calculating a fuel cost required for pumping in pumped-storage power generation that pumps using electric power output by a plurality of generators,
CPU and memory;
An incremental unit price storage unit that is a storage area provided in the memory, an output amount storage unit during pumping, and a pumped energy storage unit;
An incremental unit price determination unit after pumping power deduction and a pumped fuel cost calculation unit realized by the CPU executing a program stored in the memory;
With
The incremental unit price storage unit includes a generator identifier for identifying the generator, and an output amount of the electric power of an incremental unit price that is an increment value of fuel cost when the output amount of electric power in the generator is increased by a predetermined amount. The transition data that is the data indicating the accompanying transition is stored in association with each other,
The pumping output amount storage unit stores the generator identifier and the pumping output amount that is the output amount of power in the generator during pumping in association with each other,
The pumped power storage unit stores pumped power that is the amount of power used for pumping,
The incremental unit price after subtraction of pumping power stores the incremental unit price after subtraction of pumping power, which is an incremental unit price after subtraction of pumping power, in the output amount storage unit during pumping in each of the plurality of generators. The sum of the difference between the output amount during pumping and the output amount of the electric power obtained by referring to the incremental unit price storage unit with respect to the incremental unit price after subtraction of the pumping power is stored in the pumped power amount storage unit It is determined using the equal λ method so that it becomes the stored pumping power amount and so that the increment unit price in each of the generators after subtraction of pumping power is equal .
The pumped fuel cost calculating unit calculates the fuel cost Cpump required for pumping the output amount of the electric power with respect to the incremental unit price after subtracting the pumping power determined by the incremental unit determining unit after subtracting the pumped power, and the output at the time of pumping Based on the pumping output amount stored in the force storage unit and the transition data stored in the incremental unit price storage unit,

(However, the plurality of generators are set as generators i (i = 1... N; n is the number of generators), and Pia is stored in the pumping output amount storage unit for the generator i. The output amount at the time of pumping, Pib is the output amount of the electric power with respect to the incremental unit price after subtraction of the pumping power for the generator i, and λia and λib are the output amounts of electric power in the transition data for the generator i, respectively. And incremental unit price when using Pib)
To calculate by
Pumping fuel cost calculation device characterized by. The pumped fuel cost calculation device according to claim 1,
The CPU includes a pumping output amount receiving unit and a pumping power amount receiving unit realized by executing a program stored in the memory,
The pumping output amount receiving unit is connected to be communicable and receives the generator identifier and the pumping output amount transmitted from a computer managing the output amount of the electric power in the generator, The generator identifier and the pumping output amount are associated and recorded in the pumping output amount storage unit,
The pumped power reception unit is connected to be communicable, receives the pumped power transmitted from a computer that manages the power used for pumping, and stores the pumped power in the pumped power storage Recording in the department,
Pumping fuel cost calculation device characterized by. In pumped-type power generation that pumps water using electric power output by a plurality of generators, the fuel cost required for pumping, the generator identifier for identifying the generator, and the output amount of power in the generator Incremental unit price storage unit that associates and stores transition data that is data indicating a transition with the output amount of the electric power of the incremental unit price that is an increment value of the fuel cost when increasing by a predetermined amount, the generator identifier, A method of calculating using a computer comprising a pumping output amount storage unit that stores and outputs a pumping output amount that is an output amount of power in the generator during pumping,
The computer
Incremental unit price after subtraction of pumping power, which is an incremental unit price in the generator after subtraction of pumping power, the pumping output amount stored in the pumping output amount storage unit in each of the plurality of generators, and The sum of the difference between the power output amount obtained by referring to the incremental unit price storage unit with respect to the incremental unit price after subtraction of pumping power is the pumped power amount stored in the pumped power amount storage unit. And using the equal λ method so that the increment unit price in each of the generators after subtraction of pumping power is equal ,
The fuel cost Cpump required for the pumping is calculated with respect to the determined output unit price after subtraction of the pumping power, the pumped output amount stored in the pumped output amount storage unit , and the incremental unit price. Based on the transition data stored in the storage unit

(However, the plurality of generators are set as generators i (i = 1... N; n is the number of generators), and Pia is stored in the pumping output amount storage unit for the generator i. The output amount at the time of pumping, Pib is the output amount of the electric power with respect to the incremental unit price after subtraction of the pumping power for the generator i, and λia and λib are the output amounts of electric power in the transition data for the generator i, respectively. And incremental unit price when using Pib)
To calculate by
A pumping fuel cost calculation method characterized by A program for calculating fuel costs required for pumping in pumped-storage power generation that pumps water using electric power output by a plurality of generators,
A generator identifier for identifying the generator, and data indicating a transition with the output amount of the electric power of an incremental unit price that is an incremental value of fuel cost when the output amount of electric power in the generator is increased by a predetermined amount. Incremental unit price storage unit that stores transition data in association with each other, the generator identifier, and an output amount during pumping that is an output amount of power in the generator at the time of pumping up A computer equipped with a competence storage unit;
Incremental unit price after subtraction of pumping power, which is an incremental unit price in the generator after subtraction of pumping power, the pumping output amount stored in the pumping output amount storage unit in each of the plurality of generators, and The sum of the difference between the power output amount obtained by referring to the incremental unit price storage unit with respect to the incremental unit price after subtraction of pumping power is the pumped power amount stored in the pumped power amount storage unit. And the procedure of determining using the equal λ method so that the incremental unit price in each of the generators after subtraction of pumping power is equal ,
The fuel cost Cpump required for the pumping is calculated with respect to the determined output unit price after subtraction of the pumping power, the pumped output amount stored in the pumped output amount storage unit , and the incremental unit price. Based on the transition data stored in the storage unit

(However, the plurality of generators are set as generators i (i = 1... N; n is the number of generators), and Pia is stored in the pumping output amount storage unit for the generator i. The output amount at the time of pumping, Pib is the output amount of the electric power with respect to the incremental unit price after subtraction of the pumping power for the generator i, and λia and λib are the output amounts of electric power in the transition data for the generator i, respectively. And incremental unit price when using Pib)
The procedure of calculating by
A program for running

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