JP2019170152A - Control apparatus, power supply, control method, adjustment force command apparatus, adjustment force command method and program - Google Patents

Abstract

To provide a control apparatus that can flexibly change adjustment force which is supplied by a governor free operation.SOLUTION: A control apparatus of an electric generator comprises: a control unit that calculates a first adjustment force command value which is obtained by multiplying a deviation between an observed value and a reference value of rotational speed of the electric generator by a predefined first proportional constant; an adjustment force amplification unit that calculates a second adjustment force command value which is obtained by acquiring an adjustment force amplification coefficient on the basis of a command from an external apparatus and by multiplying the deviation by a second proportional constant depending on the adjustment force amplification coefficient; and an addition processing unit that calculates a post-amplification adjustment force command value which is obtained by adding the second adjustment force command value to the first adjustment force command value.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a control device, a power source, a control method, an adjustment force command device, an adjustment force command method, and a program.

  The transmission / distribution system has (1) Governor Free (GF), (2) Load Frequency Control (LFC), and (3) Economic load distribution control (Economic load) according to the fluctuation cycle of power demand. The frequency is maintained by combining “adjustment power” from the power source based on Dispatching Control (EDC). As a result of the liberalization of electricity, it is assumed that general transmission and distribution companies will procure adjustment power from power generation companies, etc. in the public offering or in the market.

  Electricity demand in offices, factories, general households, etc. fluctuates from moment to moment. If the power demand of the transmission / distribution system exceeds the power supply, the frequency of the transmission / distribution system will fall below the reference value (for example, 50 Hz or 60 Hz). Conversely, if the power supply exceeds the power demand, the frequency will rise above the reference value. To do. The “adjustment power” is for balancing supply and supply that fluctuate from time to time. When the adjustment power is ideally provided, the frequency matches the reference value.

  Load frequency control (LFC) is used to balance power supply and demand against fluctuations in demand from several minutes to less than 30 minutes. According to the load frequency control, an adjustment force of an amount corresponding to the fluctuation of the frequency in the power transmission / distribution system is provided. That is, when the frequency of the power transmission / distribution system is insufficient for the reference value, the general power transmission / distribution company having jurisdiction over the power transmission / distribution system procures positive adjustment power from the power company. On the other hand, when the frequency of the power transmission / distribution system exceeds the reference value, the general power transmission / distribution company procures negative adjustment power from the power company. The actual procurement of adjustment power by load frequency control is performed by the power generation company adjusting the output of the power supply and responding to the momentary command transmitted from the general power transmission and distribution company.

The stable supply of power based on load frequency control (LFC) depends on the power generation company providing adjustment power according to the command from the general power transmission and distribution company. Therefore, in power liberalization, a mechanism in which a general power transmission and distribution company pays a price according to the performance of providing adjustment power to the power generation company (settlement of adjustment power provision) is being studied.
However, when a general power transmission / distribution company issues a command for an adjustment force that fluctuates sharply in a very short time, the power company cannot respond to the command and may be penalized. Also, the frequency varies depending on the location of the power transmission and distribution system. It is desirable to command the adjustment force finely for each location of the power transmission / distribution system, but it is not realistic to perform it for a short period (a period of about 3 to 5 seconds).

  Therefore, governor-free (GF) operation that is autonomously performed by a power source (consisting of a turbine device and a generator) that is managed (or operated) by a power generation company is generally applied to short-term fluctuations in demand. Is done. Governor-free operation controls the amount of input (fuel supply, etc.) to the turbine system so that the rotational speed remains constant with respect to changes in the rotational speed of the generator caused by demand fluctuations (load fluctuations). It refers to driving. For example, when the power demand increases in the short term, the rotational speed of the generator decreases accordingly. According to governor-free operation, the input amount (fuel supply amount, etc.) to the turbine system automatically increases according to the deviation between the observed value of the reduced rotational speed and the reference value, and the rotational speed is maintained at the reference value. Is done. The extra active power generated by the generator when returning to the original rotational speed is the adjustment force provided by the governor-free operation (hereinafter also referred to as “GF adjustment force”).

  Moreover, the power supply which uses a turbine apparatus as a motive power has inertia energy inside on the structure in which the rotor of a turbine apparatus rotates during a driving | operation. This inertial energy is automatically exchanged between the generator and the load in response to demand fluctuations, so that it functions as a buffer material (buffer) for frequency fluctuations against demand fluctuations and contributes to frequency stabilization.

  Patent Document 1 discloses a correction system and method for a gas turbine proportional droop governor.

Japanese Patent Laying-Open No. 2006-153645

  Provision of adjustment power by governor-free operation and inertial energy is autonomously performed by each power source, regardless of a command from a general power transmission and distribution company. On the other hand, the power supply by photovoltaic power generation does not autonomously generate adjustment power by governor-free operation and does not have inertia energy. For this reason, due to the recent increase in photovoltaic power generation devices, there is a concern that the power transmission and distribution system will lack adjustment power to cope with short-term demand fluctuations. This concern is exacerbated by the increase in photovoltaic power generation.

  Such a situation can be solved by increasing the GF adjusting power in an existing power plant. At present, it is possible to set whether or not to implement governor-free operation for each power plant (ON / OFF), but flexibly increase or decrease the degree of GF adjustment force generated by each power plant I can't do anything. For this reason, in order to increase GF adjustment power in a power transmission / distribution system, it is necessary to increase the number of power plants that perform governor-free operation, and it is difficult to respond flexibly.

  An object of the present invention is to provide a control device, a power source, a control method, an adjustment force command device, an adjustment force command method, and a program capable of flexibly changing the adjustment force provided by the governor-free operation.

  According to the first aspect of the present invention, the control device is a generator control device that calculates a first adjustment force command value corresponding to a deviation between the observed value of the rotational speed of the generator and a reference value. And calculating a second adjustment force command value indicating a degree of amplification of the adjustment force based on the first adjustment force command value and the adjustment force amplification coefficient. An adjusting force amplifying unit for amplifying the adjusting force of the generator based on the second adjusting force command value.

  According to the second aspect of the present invention, the control device described above calculates an post-amplification adjustment force command value obtained by adding the first adjustment force command value and the second adjustment force command value. An addition processing unit, wherein the first adjustment force command value is calculated by multiplying the deviation by a predetermined first proportionality constant, and the second adjustment force command value is calculated by the first adjustment force command value. It is calculated by multiplying the command value and the adjustment force amplification coefficient, and commands the amplification of the adjustment force of the generator using the post-amplification adjustment force command value.

  According to the third aspect of the present invention, the control device receives an adjustment force amplification coefficient increase / decrease value for increasing / decreasing the adjustment force amplification coefficient as a command from the external device, and receives the received An integration processing unit is further provided for calculating the adjustment force amplification coefficient by time-integrating the adjustment force amplification coefficient increase / decrease value.

  Moreover, according to the 4th aspect of this invention, the above-mentioned control apparatus reduces the said adjustment power amplification factor, when the said generator is disconnected.

  According to the fifth aspect of the present invention, the adjustment power amplifying unit further includes a low-frequency cutoff filter that blocks the low-frequency band of the deviation.

  According to a sixth aspect of the present invention, a power source includes the above-described control device, the generator, and a turbine device that rotationally drives the generator.

  According to a seventh aspect of the present invention, the control method is a generator control method, wherein the first adjustment force command value corresponding to a deviation between the observed value of the rotational speed of the generator and a reference value And a second adjustment force command value indicating a degree to which the adjustment force is amplified based on the first adjustment force command value and the adjustment force amplification coefficient. And amplifying the adjusting force of the generator based on the second adjusting force command value.

  According to the eighth aspect of the present invention, the program calculates, in the generator control device, a first adjustment force command value corresponding to a deviation between the observed value of the rotation speed of the generator and a reference value. A step of obtaining an adjustment force amplification coefficient from an external device, and calculating a second adjustment force command value indicating a degree of amplification of the adjustment force based on the first adjustment force command value and the adjustment force amplification coefficient And the adjustment force of the generator is amplified based on the second adjustment force command value.

  Further, according to the ninth aspect of the present invention, the adjusting force command device provides the generator rotation speed observation value and the reference value to the generator control device connected to the transmission / distribution network to be managed. A transmission processing unit that transmits a command for increasing the proportionality constant of the adjustment force to be output in accordance with the deviation.

  Further, according to the tenth aspect of the present invention, the adjustment command apparatus described above has a measured value of active power exchanged at a connection point between the transmission / distribution network to be managed and another transmission / distribution network, Based on the measured value acquisition unit that acquires the measured value of the frequency at the connection point, and the acquired measured value of the active power and the measured value of the frequency, the variation of the active power is changed to the variation of the frequency. An adjustment force coefficient calculation unit that calculates an adjustment force coefficient indicating the degree of the influence of And the said transmission process part transmits the said instruction | indication which shows the increase degree of the said proportionality constant according to the deviation of the said adjustment force coefficient and the target value of the said adjustment force coefficient.

  According to an eleventh aspect of the present invention, the measurement value acquisition unit is configured to obtain a measurement value of active power transmitted / received at the connection point belonging to a partial area of the transmission / distribution network, and a frequency at the connection point. Get the measured value. In addition, the adjustment power coefficient calculation unit calculates an adjustment power coefficient related to the partial area based on the acquired measurement value of the active power and the measurement value of the frequency. In addition, the transmission processing unit sends the command according to a deviation between the adjustment power coefficient related to the partial area and the target value of the adjustment power coefficient related to the partial area to a generator belonging to the partial area. Send to control device.

  Further, according to the twelfth aspect of the present invention, the adjustment command method is used for the generator control device connected to the transmission / distribution network to be managed with respect to the observed value and the reference value of the rotational speed of the generator. There is a step of transmitting a command for increasing the proportionality constant of the adjustment force to be output in accordance with the deviation.

  Further, according to the thirteenth aspect of the present invention, the program is provided with an observation value of the rotational speed of the generator with respect to the control device of the generator connected to the power distribution network to be managed. And a step of transmitting a command for increasing the proportionality constant of the adjustment force to be output in accordance with the deviation from the reference value.

  According to each aspect of the invention described above, the adjustment force provided by the governor-free operation can be flexibly changed.

It is a figure showing the whole electric power supply-and-demand system composition concerning a 1st embodiment. It is a figure which shows the structure of the electric power supply-and-demand system which concerns on 1st Embodiment in detail. It is a block diagram which shows the hardware constitutions of the adjustment force instruction | command apparatus which concerns on 1st Embodiment. It is a block diagram which shows the function structure of the adjustment force instruction | command apparatus which concerns on 1st Embodiment. It is a block diagram which shows the hardware constitutions of the control apparatus which concerns on 1st Embodiment. It is a block diagram which shows the function structure and process flow of a control apparatus which concern on 1st Embodiment. It is a block diagram which shows the function structure and process flow of a control apparatus which concern on the modification of 1st Embodiment. It is a figure which shows the structure of the electric power supply-and-demand system which concerns on 2nd Embodiment in detail. It is a block diagram which shows the function structure and processing flow of the control apparatus which concern on 2nd Embodiment. It is a block diagram which shows the function structure and processing flow of the control apparatus which concern on 3rd Embodiment. It is a block diagram which shows the function structure and processing flow of a control apparatus which concern on the modification of 3rd Embodiment. It is a figure which shows the whole structure of the electric power supply-and-demand system which concerns on 4th Embodiment. It is a block diagram which shows the function structure of the adjustment force instruction | command apparatus which concerns on 4th Embodiment. It is a block diagram which shows the function structure and processing flow of the adjustment force instruction | command apparatus which concern on 4th Embodiment. It is a figure which shows the whole structure of the electric power supply-and-demand system which concerns on 5th Embodiment. It is a block diagram which shows the function structure and processing flow of the adjustment force instruction | command apparatus which concern on 5th Embodiment. It is a figure which shows the structure of the electric power supply-and-demand system which concerns on 6th Embodiment in detail. It is a block diagram which shows the function structure and processing flow of the control apparatus which concern on 6th Embodiment. It is a figure which shows an example of the impulse response which concerns on 6th Embodiment. It is a block diagram which shows the function structure and processing flow of a control apparatus which concern on the modification of 6th Embodiment. It is a figure which shows the whole structure of the electric power supply-and-demand system which concerns on 7th Embodiment. It is a block diagram which shows the function structure of the adjusting force command apparatus which concerns on 7th Embodiment. It is a block diagram which shows the function structure and processing flow of the adjustment force instruction | command apparatus which concern on 7th Embodiment. It is a figure which shows an example of the weighting coefficient table which concerns on 7th Embodiment.

<First Embodiment>
Hereinafter, the power supply and demand system according to the first embodiment will be described with reference to FIGS.

(Overall configuration of power supply and demand system)
FIG. 1 is a diagram illustrating an overall configuration of a power supply and demand system according to the first embodiment.
The power supply and demand system 1 shown in FIG. 1 is a system for maintaining a power supply and demand balance between a power generation company G that generates power and a customer C that consumes the transmitted and distributed power.
In the example shown in FIG. 1, a power generation company G and a customer C are connected to a transmission / distribution network managed by the general transmission / distribution company T (hereinafter also referred to as a target transmission / distribution network N1). Yes. The target transmission / distribution network N1 is also connected to a transmission / distribution network (hereinafter, also referred to as non-target transmission / distribution network N2) that is managed by another general power transmission / distribution company.

The power generation company G is a company that generates power using a turbine device, a generator, or the like, which will be described later. The electric power generated by the power generation company G is supplied to the customer C through the target transmission / distribution network N1 that is managed by the general power transmission / distribution company T.
The customer C is a factory or the like, for example, manages a load of a motor or the like, and consumes power supplied through the target transmission and distribution network N1.
The general power transmission / distribution company T observes the frequency of the power flowing through the target transmission / distribution network N1 and monitors the power supply / demand balance between the power generation company G and the customer C. The general power transmission and distribution company T uses the adjustment power command device 10 to maintain an electric power supply-demand balance in an equilibrium manner, and to each power generation company G, an adjustment power command by load frequency control (LFC) and economic load distribution. An adjustment force command or the like by control (EDC) is transmitted.

The power supply / demand system 1 includes an adjustment force command device 10.
The adjusting force command device 10 is managed by a general power transmission and distribution company T. As described above, the adjustment force command device 10 transmits an adjustment force command by LFC and EDC to each power generation company G according to the operation of the operator of the general power transmission and distribution company T.
Further, the adjustment force command device 10 according to the present embodiment enables each power generation company G to transmit a GF adjustment force amplification command that is a command for amplifying the GF adjustment force.

(Details of power supply and demand system configuration)
FIG. 2 is a diagram showing in detail the configuration of the power supply and demand system according to the first embodiment.
As shown in FIG. 2, the power generation company G manages the power source 21. The power generation company G manages a plurality of power supplies having the same configuration as the power supply 21, but the illustration is omitted.

The power source 21 includes a control device 210, a turbine device 211, and a generator 212.
The turbine device 211 is, for example, a gas turbine, a steam turbine, or the like, and generates a torque corresponding to a supply amount of fuel (steam) or the like. The turbine device 211 rotates the generator 212 through a rotation shaft connected to the generator 212.
The generator 212 generates power by rotating the rotor with the torque input from the turbine device 211. The electric power generated by the generator 212 is sent to the target power distribution network N1.

The control device 210 performs operation control of the turbine device 211 and the generator 212. In particular, the control device 210 constantly monitors the rotational speed (corresponding to the output frequency) of the generator 212 and automatically adjusts the input amount (fuel supply amount) to the turbine device 211 so that the rotational speed becomes constant. (Governor-free operation)
More specifically, the control device 210 acquires an observation value of the rotational speed from the output of the turbine device 211 or the generator 212. Then, a deviation between the observed value and a predetermined reference value is calculated, and further, an output (GF adjusting force) that the generator should generate in order to reduce the deviation is calculated. The control device 210 outputs a GF adjustment force command (valve opening degree command) indicating the calculated GF adjustment force to the fuel supply valve V.
With the control as described above by the control device 210, the adjustment power is sequentially provided by the governor-free operation of the power source 21 for demand fluctuation of a short cycle (period 3 to 5 seconds).

  In the governor-free operation performed by the control device 210, the output (that is, the adjustment force ΔP) additionally generated by the power source 21 in accordance with the deviation (frequency deviation Δf) between the observed value of the rotational speed of the generator 212 and the reference value is , Using the speed arbitration rate δ, it is defined as in equation (1).

In Expression (1), “Δf” is a frequency deviation Δf [Hz], which is a deviation of the frequency of the output of the power supply 21 with respect to a frequency reference value (for example, 50 Hz). “Fn” is a reference value [Hz] (for example, 50 Hz) of the frequency of the target transmission and distribution network N1, and “Pn” is a rated output [W] of the power source 21.
As described above, in the governor-free operation control performed by the control device 210, the adjustment force ΔP to be output by the generator 212 according to the frequency deviation Δf is a proportional constant (1 / δ · Pn / fn) including the speed arbitration rate δ. To be determined.

  The adjustment power command device 10 managed by the general power transmission and distribution company T transmits a GF adjustment power amplification command to the control device 210 via a predetermined communication network (Internet line or the like). In the present embodiment, the GF adjustment force amplification command is a signal indicating “adjustment force amplification coefficient”. The “adjustment force amplification coefficient” will be described later.

(Hardware configuration of adjustment force command device)
FIG. 3 is a block diagram illustrating a hardware configuration of the adjustment force command apparatus according to the first embodiment.
As shown in FIG. 3, the adjustment force command device 10 includes a CPU 100, a memory 101, a communication interface 102, an operation panel 103, and a storage 104.
The CPU 100 is a processor that controls the overall operation of the adjustment force command device 10.
The memory 101 is a so-called main storage device, and instructions and data for the CPU 100 to operate based on a program are developed.
The communication interface 102 is an interface device for exchanging information with an external device (in particular, the control device 210). In the present embodiment, the communication means and communication method realized by the communication interface 102 are not particularly limited. For example, the communication interface 102 may be a wired connection interface for realizing wired communication or a wireless communication module for realizing wireless communication.
The operation panel 103 is an input interface such as a keyboard or a touch sensor.
The storage 104 is a so-called auxiliary storage device, and may be, for example, an HDD (Hard Disk Drive), an SSD (Solid State Drive), or the like.

(Functional configuration of adjusting force command device)
FIG. 4 is a block diagram illustrating a functional configuration of the adjustment force command device according to the first embodiment.
As shown in FIG. 4, the CPU 100 of the adjustment force commanding apparatus 10 operates according to a program, thereby exhibiting functions as the operation reception processing unit 1000 and the transmission processing unit 1001.

  The operation reception processing unit 1000 receives an operator's operation through the operation panel 103. For example, the operation reception processing unit 1000 receives an operation for outputting an adjustment force command by LFC or EDC from an operator. Further, the operation reception processing unit 1000 receives an operation for outputting a GF adjustment force amplification command from the operator.

  The transmission processing unit 1001 performs processing for transmitting various commands to the control device 210 of the power supply 21 through the communication interface 102. In particular, the transmission processing unit 1001 according to the present embodiment transmits a GF adjustment power amplification command indicating an adjustment power amplification coefficient. Here, the adjustment force amplification coefficient is a proportionality constant (first proportionality constant (to be described later) (to be described later)) to be output in accordance with a deviation (frequency deviation Δf) between the observed value of the rotational speed of the generator 212 and the reference value. 1 / δ · Pn / fn)) is a value indicating the degree of increase.

(Hardware configuration of control device)
FIG. 5 is a block diagram illustrating a hardware configuration of the control device according to the first embodiment.
As illustrated in FIG. 5, the control device 210 includes a CPU 2100, a memory 2101, a communication interface 2102, and a storage 2103.
The CPU 2100 is a processor that controls the overall operation of the control device 210.
The memory 2101 is a so-called main storage device, and instructions and data for the CPU 2100 to operate based on a program are developed.
The communication interface 2102 is an interface device for exchanging information with an external device (in particular, the adjustment force command device 10).
The storage 2103 is a so-called auxiliary storage device, and may be, for example, an HDD (Hard Disk Drive), an SSD (Solid State Drive), or the like.

(Functional configuration and processing flow of control device)
FIG. 6 is a block diagram illustrating a functional configuration and a processing flow of the control device according to the first embodiment.
As illustrated in FIG. 6, the CPU 2100 of the control device 210 exhibits functions as a control unit 220, an adjustment power amplification unit 230, and an addition processing unit 240 by operating according to a program.

The control unit 220 performs control for realizing governor-free operation. Specifically, in particular, the control unit 220 (calculation unit 222 described later) has a first proportional constant defined in advance with respect to a deviation (frequency deviation Δf) between the observed value of the rotational speed of the generator 212 and the reference value. A first adjustment command value (ΔP) obtained by multiplying (1 / δ · Pn / fn) is calculated.
The adjustment force amplification unit 230 acquires the adjustment force amplification coefficient κ based on the command from the adjustment force command device 10. The adjusting force amplifying unit 230 then multiplies the frequency deviation Δf by a second proportional constant (1 / δ · Pn / fn · κ) corresponding to the adjusting force amplification coefficient κ (κΔP). ) Is calculated.
The addition processing unit 240 calculates the post-amplification adjustment force command value (1 + κ) ΔP obtained by adding the second adjustment force command value κΔP to the first adjustment force command value ΔP.

  The post-amplification adjustment force command value (1 + κ) ΔP is output to the fuel supply valve V (FIG. 2) as a final GF adjustment force command (valve opening degree command) of the control device 210. That is, the control device 210 according to the present embodiment outputs the adjustment force amplified by κΔP from the normal GF adjustment force command ΔP based on the GF adjustment force amplification command received from the adjustment force command device 10. Control.

  Hereinafter, the processing flow of the control unit 220, the adjustment power amplification unit 230, and the addition processing unit 240 will be described in detail with reference to FIG. In the control device 210, the control unit 220 is generally configured as an independent functional block.

First, the processing of the control unit 220 will be described in detail.
As shown in FIG. 6, the calculation unit 221 of the control unit 220 calculates a frequency deviation Δf (= f0−f) that is a deviation between the observed value (rotation speed f) of the rotation speed of the generator 212 and the reference value f0. To do.
Next, the calculation unit 222 of the control unit 220 calculates the first adjustment force command value ΔP by multiplying the frequency deviation Δf by the first proportionality constant (1 / δ · Pn / fn) including the speed adjustment rate δ. The first adjustment force command value ΔP is a value calculated based on the equation (1), and is a GF adjustment force command output according to the frequency deviation Δf in a normal governor-free operation.
Next, the calculation unit 223 adds a predefined governor set value P to the first adjustment force command value ΔP calculated by the calculation unit 222.
Next, the load limiter 224 determines whether or not the sum (P + ΔP) of the governor set value P and the first adjustment force command value ΔP exceeds a predetermined load limit value Plim. When the sum (P + ΔP) of the governor set value P and the first adjustment force command value ΔP exceeds the load limit value Plim, the load limiter 224 does not exceed the load limit value Plim. Limit the adjustment force command value ΔP.

Here, the function of the load limiter 224 will be briefly described.
For example, it is assumed that the governor set value P is set to 100% and the load limit value Plim is set to 110% in the prior setting process for the control device 210. In this case, the first adjustment force command value ΔP output from the control unit 220 is limited to a maximum of 10% by the function of the load limiter 224.
For example, it is assumed that the load limit value Plim is set to 100% (or a value less than 100%) with respect to the governor set value P of 100%. In this case, the first adjustment force command value ΔP output from the control unit 220 is always 0%. Such setting is synonymous with “OFF” the governor-free operation by the control device 210.

Next, the process of the adjustment power amplification unit 230 will be described in detail.
As shown in FIG. 6, the calculation unit 231 of the adjustment force amplifying unit 230 calculates the first adjustment force command value ΔP by multiplying the frequency deviation Δf by the first proportionality constant (1 / δ · Pn / fn).
Next, the multiplication processing unit 232 of the adjustment force amplifying unit 230 receives the adjustment force amplification coefficient κ from the adjustment force command device 10, and adds the adjustment force amplification coefficient κ to the first adjustment force command value ΔP calculated by the calculation unit 231. To calculate a second adjustment force command value κΔP.
In other words, the adjustment power amplification unit 230 obtains the adjustment power amplification coefficient κ based on a command from the adjustment power command device 10 and adjusts the frequency deviation Δf with respect to the above processing performed by the calculation unit 231 and the multiplication processing unit 232. A second adjustment force command value κΔP obtained by multiplying by a second proportional constant (1 / δ · Pn / fn · κ) corresponding to the force amplification coefficient κ is calculated.

Next, the processing of the addition processing unit 240 will be described in detail.
The addition processing unit 240 calculates the post-amplification adjustment force command value (1 + κ) ΔP obtained by adding the second adjustment force command value κΔP to the first adjustment force command value ΔP. The addition processing unit 240 outputs the calculated post-amplification adjustment force command value (1 + κ) ΔP to the fuel supply valve V (FIG. 2) as a final GF adjustment force command. As described above, the control unit 220 is generally configured as an independent functional block. Therefore, although it is generally not welcome to change the inside of the control unit 220, the function of the addition processing unit 240 can be substituted for the calculation unit 223 when the change is allowed.

  In other words, the CPU 2100 performs the GF adjustment on the first proportionality constant (1 / δ · Pn / fn)) that determines the adjustment force ΔP that the generator 212 should output in accordance with the frequency deviation Δf. The governor-free operation is performed after increasing by a second proportional constant (1 / δ · Pn / fn · κ) based on the force amplification command.

  Although not shown in FIG. 6, the CPU 2100 of the control device 210 receives the adjustment force command by the LFC from the adjustment force command device 10 in addition to the GF adjustment force amplification command (adjustment force amplification coefficient κ), and The adjustment force command by EDC is also received as appropriate. In practice, the CPU 2100 takes into account not only the GF adjustment force command based on the GF adjustment force amplification command (adjustment force amplification coefficient κ) but also the adjustment force commands by these LFC and EDC, and then the turbine device 211 and the generator 212. To control.

(Function, effect)
As described above, the control device 210 for the turbine device 211 and the generator 212 according to the first embodiment adjusts the adjustment force command value output by the normal governor-free operation in response to the command from the adjustment force command device 10. A post-amplification adjustment force command value (1 + κ) ΔP larger than (first adjustment force command value ΔP) is output. It should be noted that the adjustment force amplification factor κ also allows negative values. For this reason, the post-amplification adjustment force command value (1 + κ) ΔP may be smaller than the adjustment force command value (first adjustment force command value ΔP).
Further, the adjustment force command device 10 sends the observed value and the reference value of the rotational speed of the generator 212 to the control device 210 of the generator 212 connected to the transmission / distribution network to be managed (target transmission / distribution network N1). GF adjustment force amplification command for increasing the proportionality constant of the adjustment force to be output according to the deviation (frequency deviation Δf).
As a result, when it is determined that the adjustment power for short-term fluctuations in demand is insufficient, the operator of the general transmission / distribution company T instructs each power generation company G to amplify the GF adjustment power amplification command (adjustment). By transmitting the force amplification coefficient κ), the GF adjustment force can be flexibly procured.

(Modification of the first embodiment)
FIG. 7 is a block diagram illustrating a functional configuration and a processing flow of a control device according to a modified example of the first embodiment.
Hereinafter, a modification of the first embodiment will be described with reference to FIG.

The adjustment force amplifying unit 230 according to the modified example of the first embodiment further includes an upper limit setting unit 233 in addition to the first embodiment.
The upper limit setting unit 233 applies and outputs a predetermined upper limit value for the adjustment force amplification coefficient κ received from the adjustment force command device 10. Thereby, even when a remarkably high adjustment force amplification coefficient κ is transmitted from the adjustment force command device 10, the adjustment force is amplified within a range that does not exceed the limit of the power source 21 (turbine device 211, generator 212). be able to.

Further, the upper limit setting unit 233 according to the present embodiment inputs a break detection signal from the breaker B. Here, the circuit breaker B is a device that disconnects the generator 212 by cutting off the electrical connection between the generator 212 and the target transmission and distribution network N1.
When the upper limit setting unit 233 receives a break detection signal from the circuit breaker B, the upper limit setting unit 233 immediately sets the upper limit set value to zero. That is, the upper limit setting unit 233 always outputs zero regardless of the adjustment force amplification coefficient κ received from the adjustment force command device 10.

The speed arbitration rate δ applied to normal governor-free operation control is set to a value that does not cause hunting (vibration) in governor-free operation control even when the generator 212 is unloaded (disconnected state). Has been. However, when the generator 212 is disconnected (becomes a no-load state), the proportionality constant (first proportionality constant) larger than the proportionality constant (first proportionality constant) based on the speed arbitration rate δ is obtained by the function of the adjustment force amplification unit 230. When governor-free operation is performed with the proportional constant added with the second proportional constant), there is a concern that the value of the proportional constant (proportional gain) with respect to the load becomes too large and causes hunting.
Therefore, the adjustment power amplification unit 230 according to the present modification, based on the function of the upper limit setting unit 233 as described above, immediately sets the adjustment power amplification coefficient κ to zero when the disconnection of the generator 212 is detected. Disable the function. As a result, hunting by governor-free operation control can be prevented from occurring when the line is disconnected.

  In the present modification, the adjustment power amplification unit 230 has been described as an example in which the adjustment power amplification coefficient κ is zero when the generator 212 is disconnected. However, in other embodiments, the adjustment power amplification unit 230 is limited to this mode. Not. That is, the adjustment power amplification unit 230 according to another embodiment sets the adjustment power amplification coefficient κ within a range in which an effect that does not cause hunting of the power generator 212 is obtained when the disconnection of the power generator 212 is detected. The aspect to reduce may be sufficient.

<Second Embodiment>
Next, a power supply and demand system according to the second embodiment will be described with reference to FIGS.

(Details of power supply and demand system configuration)
FIG. 8 is a diagram showing in detail the configuration of the power supply and demand system according to the second embodiment.
As shown in FIG. 8, the adjustment force command device 10 according to the second embodiment outputs “adjustment force amplification coefficient increase / decrease value” as a GF adjustment force amplification command to the control device 210. The “adjustment power amplification coefficient increase / decrease value” is a value indicating the degree of increase / decrease of the adjustment power amplification coefficient κ applied to each power generation company G.

(Functional configuration and processing flow of control device)
FIG. 9 is a block diagram illustrating a functional configuration and a processing flow of the control device according to the second embodiment.
As shown in FIG. 9, the adjustment force amplifying unit 230 according to the second embodiment further includes an integration processing unit 234.
The integration processing unit 234 receives the adjustment force amplification coefficient increase / decrease value κ · for increasing or decreasing the adjustment force amplification coefficient κ as the GF adjustment force amplification command from the adjustment force command device 10. Then, the integration processing unit 234 calculates the adjustment force amplification coefficient κ by time-integrating the received adjustment force amplification coefficient increase / decrease value κ ·. The integration processing unit 234 outputs the adjustment force amplification coefficient κ calculated by time integration to the multiplication processing unit 232.

(Function, effect)
According to the above-described configuration according to the second embodiment, the general power transmission / distribution company T does not instruct the power generation company G of the adjustment power amplification coefficient κ itself, but simply increases or decreases the adjustment power amplification coefficient κ. Command only. As a result, the operator of the general transmission / distribution company T need only command increase / decrease of the adjustment power amplification coefficient κ according to the determination result of the excess / deficiency of the GF adjustment power with respect to short-term demand fluctuations, and Adjustment can be simplified.

<Third Embodiment>
Next, the power supply and demand system according to the third embodiment will be described with reference to FIG.

(Functional configuration and processing flow of control device)
FIG. 10 is a block diagram illustrating a functional configuration and a processing flow of a control device according to the third embodiment.
As shown in FIG. 10, the adjustment force amplifying unit 230 according to the third embodiment further includes a low-frequency cutoff filter 235 in addition to the configuration of the second embodiment.
The low-frequency cutoff filter 235 is provided between the calculation unit 231 and the multiplication processing unit 232, and blocks the low-frequency band of the first adjustment force command value ΔP (that is, the frequency deviation Δf). The time constant τ of the low-frequency cutoff filter 235 is appropriately set according to the frequency band to be cut off.

(Function, effect)
The provision of the adjustment power by the governor-free operation only corresponds to the demand fluctuation that occurs in a short cycle, and the situation in which the frequency deviation Δf continuously occurs should be dealt with by the LFC and the EDC. By providing the low-frequency cutoff filter 235 as described above, the adjustment force provided by the governor-free operation to which the GF adjustment force amplification command is applied can be made to respond only to demand fluctuations that occur in a short cycle.

(Modification of the third embodiment)
FIG. 11 is a block diagram illustrating a functional configuration and a processing flow of a control device according to a modified example of the third embodiment.
Hereinafter, a modification of the third embodiment will be described with reference to FIG.

The adjustment power amplification unit 230 according to the modification of the third embodiment includes a low-frequency cutoff filter 235 as in the third embodiment (FIG. 10). However, unlike the third embodiment, the adjusting force amplifying unit 230 directly inputs an observation value (rotational speed f) of the rotational speed of the generator.
Further, unlike the third embodiment, the arithmetic unit 231 according to the modification of the third embodiment multiplies a negative first proportionality constant (−1 / δ · Pn / fn).

Even if the observed value (rotational speed f) of the rotational speed of the generator is directly input to the calculation unit 231, the component based on the reference value f0 that is a fixed value is blocked by the low-frequency cutoff filter 235. As a result, the value output from the low-frequency cutoff filter 235 becomes the first adjustment force command value ΔP after the low-frequency band component is blocked, as in the third embodiment.
By doing in this way, the whole structure can be simplified compared with 3rd Embodiment.

<Fourth Embodiment>
Next, the power supply and demand system according to the fourth embodiment will be described with reference to FIGS.

(Overall configuration of power supply and demand system)
FIG. 12 is a diagram illustrating an overall configuration of a power supply and demand system according to the fourth embodiment.
In FIG. 12, in addition to the target transmission and distribution network N1, non-target transmission and distribution networks N2 and N3 that are managed by other general power transmission and distribution operators are shown. As shown in FIG. 12, the target transmission / distribution network N1 is electrically connected to the non-target transmission / distribution networks N2, N3 at one or a plurality of connection points to construct a large-scale transmission / distribution system.

In the power supply and demand system 1 according to the present embodiment, the measuring instrument 50 is installed at each connection point connecting the target transmission / distribution network N1 and the non-target transmission / distribution networks N2, N3. Each measuring instrument 50 can measure the active power (tidal current) exchanged at each connection point and the frequency at the connection point. The measuring device 50 measures the active power flowing out from the target transmission / distribution network N1 to the non-target transmission / distribution networks N2 and N3 as “positive”.
Note that the measuring instrument 50 according to the present embodiment may be a well-known power meter with a frequency measuring function.

  The adjusting force command apparatus 10 according to the present embodiment receives the active power and the measurement result of the frequency (active power measurement values P1, P2,..., Frequency measurement values f1, f2,...) From each measuring instrument 50. . Then, the adjustment force command device 10 provides an appropriate adjustment force amplification coefficient increase / decrease value (GF adjustment force amplification command) according to the measurement result of the measuring instrument 50 toward each power generation company G connected to the target transmission and distribution network N1. ).

(Functional configuration of adjusting force command device)
FIG. 13 is a block diagram illustrating a functional configuration of the adjustment force command apparatus according to the fourth embodiment.
Since the hardware configuration of the adjustment force command apparatus according to the fourth embodiment is the same as that of the first embodiment (FIG. 3), the illustration thereof is omitted.

  As illustrated in FIG. 13, the CPU 100 of the adjustment force command device 10 operates according to a program, thereby functioning as an operation reception processing unit 1000, a transmission processing unit 1001, a measurement value acquisition unit 1002, and an adjustment force coefficient calculation unit 1003. Demonstrate.

  The operation reception processing unit 1000 has the same functions as in the first embodiment.

  The measurement value acquisition unit 1002 receives the measurement results (active power measurement values P1, P2,..., Frequency measurement values f1, f2,...) Of the active power and the frequency from each measuring instrument 50 (FIG. 12).

  The adjustment force coefficient calculation unit 1003 calculates the adjustment force coefficient kp based on the active power measurement values P1, P2,... Acquired by the measurement value acquisition unit 1002, and the frequency measurement values f1, f2,. The adjustment power coefficient kp is a value indicating the degree of the influence (contribution) of the fluctuation of the active power transmitted and received at the connection point between the target transmission / distribution network N1 and the non-target transmission / distribution networks N2 and N3.

  In addition, the transmission processing unit 1001 according to the present embodiment outputs a GF adjustment force amplification command according to a deviation between the adjustment force coefficient kp calculated by the adjustment force coefficient calculation unit 1003 and the target value kpR of the adjustment force coefficient. Send to operator G.

(Functional configuration and processing flow of adjustment force command device)
FIG. 14 is a block diagram illustrating a functional configuration and a processing flow of the adjusting force command device according to the fourth embodiment.
Hereinafter, the flow of processing executed by the CPU 100 will be described with reference to FIG.

  First, the adjustment power coefficient calculation unit 1003 of the CPU 100, through the measuring instrument 50 and the measurement value acquisition unit 1002 (FIG. 13), measures the active power measurement values P1, P2,..., And the frequency measurement values f1, f2,.・ ・ And get. And the adjustment force coefficient calculating part 1003 calculates Formula (2).

  In Expression (2), “ΔPi (t)” (i = 1, 2,...) Is a measured value of active power fluctuation (hereinafter also referred to as “active power fluctuation measured value”). Δfi (t) ”is a measured value of frequency fluctuation (hereinafter also referred to as“ frequency fluctuation measured value ”). The active power fluctuation measurement value ΔPi (t) and the frequency fluctuation measurement value Δfi (t) are obtained by using the active power measurement value Pi (t) and the frequency measurement value fi (t), respectively. Calculated by (4).

In Equation (3), “E [Pi]” is an average value of the measured active power Pi (t) acquired at each past time within a predetermined time (for example, 30 minutes) from the current time. That is, the adjustment force coefficient calculation unit 1003 calculates the deviation between the average value E [Pi] of the active power measurement values Pi (t) acquired within a predetermined time and the newly acquired active power measurement value Pi (t). Is obtained as an active power fluctuation measurement value ΔPi (t).
In the equation (4), “E [fi]” is an average value of the frequency measurement values fi (t) acquired at each past time within a predetermined time (for example, 30 minutes) from the current time. That is, the adjustment force coefficient calculation unit 1003 calculates a deviation between the average value E [fi] of the frequency measurement values fi (t) acquired within a predetermined time and the newly acquired frequency measurement value fi (t). Obtained as a frequency fluctuation measurement value Δfi (t).

  The adjustment force coefficient kp [W / Hz] derived from the equation (2) indicates how much the variation of the active power measured at each connection point between the target transmission / distribution network N1 and the non-target transmission / distribution networks N2, N3 is It is the average value of the quantity indicating whether it influences (contributes) to the fluctuation of the frequency at each connection point. That is, when the adjustment power coefficient kp is high, the fluctuation of the active power generated corresponding to the fluctuation of the frequency (that is, the adjustment power) is large, that is, sufficient in the target transmission and distribution network N1. It is determined that adjustment power is provided. On the contrary, when the adjustment power coefficient kp is small, it means that the fluctuation of the active power generated corresponding to the fluctuation of the frequency is small, that is, sufficient adjustment power is provided in the target transmission and distribution network N1. It is judged that it is not.

Next, the calculation unit 111 of the transmission processing unit 1001 calculates a deviation Δk between the adjustment force coefficient target value KpR defined in advance and the adjustment force coefficient Kp.
Next, the calculation unit 112 of the transmission processing unit 1001 calculates the adjustment force amplification coefficient increase / decrease value κ · by multiplying the deviation Δk by a predetermined proportionality constant kκ.
The transmission processing unit 1001 transmits the adjustment power amplification coefficient increase / decrease value κ · thus calculated to each power generation company G.

(Function, effect)
As described above, the adjusting force command device 10 according to the fourth embodiment performs the governor-free operation for each power generation company G according to the deviation between the adjusting force coefficient kp and the adjusting force coefficient target value kpR. A GF adjustment force amplification command indicating the degree of increase of the proportionality constant (1 / δ · Pn / fn) to be used is transmitted.
By doing in this way, adjustment power amplification coefficient κ applied in each power generation company G is adjusted so that adjustment power coefficient kp measured through measuring instrument 50 coincides with adjustment power coefficient target value kpR defined in advance. Set automatically.

<Fifth Embodiment>
Next, a power supply and demand system according to the fifth embodiment will be described with reference to FIGS.

(Overall configuration of power supply and demand system)
FIG. 15 is a diagram illustrating an overall configuration of a power supply and demand system according to the fifth embodiment.
In FIG. 15, in addition to the target transmission / distribution network N1, non-target transmission / distribution networks N2 and N3 that are managed by other general transmission / distribution operators are shown. As shown in FIG. 15, the target transmission / distribution network N1 is electrically connected to the non-target transmission / distribution networks N2, N3 at one or more connection points.

  In the target transmission and distribution network N1 according to the present embodiment, areas A1, A2,... That are predetermined areas with the connection points as base points are defined. For example, in the example shown in FIG. 15, the connection point (connection point where the measuring instrument 501 is installed) between the target transmission / distribution network N1 and the non-target transmission / distribution network N2 is set as the base point within the range of the target transmission / distribution network N1. The area A1 is defined. The power generation company G1 belongs to this area A1. In the example shown in FIG. 15, the connection point (connection point where the measuring instrument 502 is installed) between the target transmission / distribution network N1 and the non-target transmission / distribution network N3 is set as a base point within the range of the target transmission / distribution network N1. The area A2 is defined. The power generation company G2 belongs to this area A2.

  The adjusting force command apparatus 10 according to the present embodiment receives the active power and the measurement result of the frequency (active power measurement values P1, P2,..., Frequency measurement values f1, f2,...) From each measuring instrument 50. . And adjustment power command device 10 is suitable adjustment power toward power generation company G1 which belongs to the area A1 based on active power measurement value P1 and frequency measurement value f1 which were received from measuring instrument 501 which belongs to area A1. An amplification factor κ1 (GF adjustment force amplification command) is transmitted. Furthermore, the adjustment force command device 10 provides an appropriate adjustment force toward the power generation company G2 belonging to the area A2 based on the active power measurement value P2 and the frequency measurement value f2 received from the measuring instrument 502 belonging to the area A2. An amplification factor κ2 (GF adjustment force amplification command) is transmitted.

(Functional configuration and processing flow of adjustment force command device)
FIG. 16 is a block diagram illustrating a functional configuration and a processing flow of the adjusting force command device according to the fifth embodiment.
Hereinafter, the flow of processing executed by the CPU 100 will be described with reference to FIG.

  First, the adjustment power coefficient calculation unit 1003 of the CPU 100, through the measuring instrument 50 and the measurement value acquisition unit 1002 (FIG. 13), measures the active power measurement values P1, P2,..., And the frequency measurement values f1, f2,.・ ・ And get.

  Next, the adjustment force coefficient calculation unit 1003 calculates Expression (5) using the active power measurement value P1 and the frequency measurement value f1 acquired from the measuring instrument 501 belonging to the region A1, and acquires the adjustment force coefficient kp1.

  Similarly, the adjustment force coefficient calculation unit 1003 performs the same calculation as Expression (5) using the active power measurement value P2 and the frequency measurement value f2 acquired from the measuring instrument 502 belonging to the region A2, and obtains the adjustment force coefficient kp2. get.

Next, the calculation unit 111 of the transmission processing unit 1001 calculates a deviation Δk1 between the adjustment force coefficient target value KpR1 defined in advance and the adjustment force coefficient Kp1. In addition, the calculation unit 111 calculates a deviation Δk2 between the adjustment force coefficient target value KpR2 defined in advance and the adjustment force coefficient Kp2.
Next, the average value calculation unit 113 of the transmission processing unit 1001 calculates an average value Δk of the deviation Δk1 and the deviation Δk2.
The computing unit 112 of the transmission processing unit 1001 computes the adjustment power amplification coefficient increase / decrease value κ · by multiplying the average value Δk of the deviation Δk1 and the deviation Δk2 by a predetermined proportionality constant kκ.
The integration processing unit 115 of the transmission processing unit 1001 calculates the adjustment power amplification coefficient κ by time-integrating the adjustment power amplification coefficient increase / decrease value κ ·.

  In addition, the calculation unit 114 of the transmission processing unit 1001 calculates an additional adjustment power amplification coefficient Δκ1 related to the region A1 by multiplying the deviation Δk1 by a predetermined proportionality constant k1. Further, the calculation unit 114 multiplies the deviation Δk2 by a predetermined proportional constant k2 to calculate an additional adjustment force amplification coefficient Δκ2 related to the area A2.

Next, the calculation unit 116 adds the additional adjustment power amplification coefficient Δκ1 related to the area A1 to the adjustment power amplification coefficient κ calculated based on the average value Δk, thereby calculating the adjustment power amplification coefficient κ1 related to the area A1. . The transmission processing unit 1001 transmits the adjustment power amplification coefficient κ1 calculated in this way toward the power generation company G1 belonging to the region A1.
In addition, the calculation unit 116 adds the additional adjustment force amplification coefficient Δκ2 related to the region A2 to the adjustment force amplification coefficient κ calculated based on the average value Δk, thereby calculating the adjustment force amplification coefficient κ2 related to the region A2. The transmission processing unit 1001 transmits the adjustment power amplification coefficient κ2 calculated in this way toward the power generation company G2 belonging to the region A2.

(Function, effect)
As described above, the adjustment force command apparatus 10 according to the fifth embodiment includes the adjustment force coefficient related to a part of the target power distribution network N1 (for example, the area A1) and the adjustment force coefficient target value related to the part of the area. Is transmitted to the control device 210 of the generator 212 belonging to the partial area.
According to the above configuration, the following operations and effects are achieved.
That is, the adjustment force coefficient kp1 at the connection point (measurement device 501) between the target transmission / distribution network N1 and the non-target transmission / distribution network N2, and the connection point (measurement device 502) between the target transmission / distribution network N1 and the non-target transmission / distribution network N3. In general, the adjustment force coefficient kp2 is different in value.
The adjustment force command device 10 having the above configuration calculates adjustment force coefficients kp1 and kp2 for each connection point based on the frequency f and the active power P measured at each connection point. The adjustment force command device 10 is determined for each connection point based on a deviation between the adjustment force coefficient target values kpR1 and kpR2 set for each connection point and the adjustment force coefficients kp1 and kp2 for each connection point. A different adjustment power amplification coefficient κ1, κ2 is commanded to each power plant group belonging to each region. Therefore, the adjustment force command device 10 can finely command an optimum GF adjustment force amplification command (adjustment force amplification coefficient κ) for each region having each connection point as a base point.

  In the present embodiment, for each connection point, a predetermined range (area A1, A2) in the vicinity thereof is determined, but this is not a viewpoint of the proximity of the distance on the map, but a small impedance with the connection point. It is preferable to select from the viewpoint of sausage.

<Sixth Embodiment>
Next, an electric power supply and demand system according to the sixth embodiment will be described with reference to FIGS.

(Details of power supply and demand system configuration)
FIG. 17 is a diagram showing in detail the configuration of the power supply and demand system according to the sixth embodiment.
In the power supply and demand system 1 according to the first or second embodiment described above, the adjustment force command device 10 determines that the GF adjustment force for short-period demand fluctuation is insufficient, for example. By outputting “adjustment power amplification coefficient” or “adjustment power amplification coefficient increase / decrease value” to each power generation company G as the adjustment power amplification command, the GF adjustment power of each power generation company G can be amplified. That is, in the power supply and demand system 1 according to the first or second embodiment, the general power transmission and distribution company T can directly adjust the magnitude of the GF adjustment power of each power generation company G as necessary.
On the other hand, in the power supply and demand system 1 according to the sixth embodiment, the power transmission and distribution company T does not command the amplification of the GF adjustment power each time, but the power generation companies G each autonomously adjust the GF adjustment power. Is adjustable.
Specifically, as shown in FIG. 17, the adjustment force command device 10 according to the sixth embodiment outputs “weighting coefficient (w)” as a GF adjustment force amplification command. The weighting coefficient w is a coefficient for adjusting the value of the GF adjusting force according to the delay of the response of the generator 212 (providing the GF adjusting force) to the frequency fluctuation. This weighting coefficient w is an indirect GF adjustment force amplification command for urging the power generator G to increase or decrease the autonomous GF adjustment force.

For example, when the frequency of the target transmission / distribution network N1 decreases, positive active power is required as the GF adjustment power to maintain the frequency. At this time, if the power supply 21 responds without delay from the time of frequency reduction (provides positive active power), it is effective in suppressing frequency fluctuations in the target transmission and distribution network N1, and is highly valuable. However, if the power supply 21 responds with a significant delay (for example, with an hour delay) from the frequency drop point, the contribution to the suppression of the frequency fluctuation may be low. Thus, in order to maintain the frequency of the target transmission / distribution network N1, the rapid response of the power source 21 may be important. The general power transmission and distribution operator T according to the present embodiment sets the weighting factor w so that the value of the GF adjustment power of the power source 21 that has made a response to frequency fluctuation without delay is high. Specifically, the general power transmission and distribution operator T sets the value of the weighting factor w for each delay time (for example, every second) so that the value of the weighting factor w increases as the delay time decreases. The weighting factor w set in this way is stored in advance in the storage 104 of the adjustment force command device 10.
In addition, in other embodiment, it is not restricted to this, The general power transmission / distribution company T may set the value of the weighting coefficient w for every delay time arbitrarily.

Here, a method for calculating the GF adjustment force to be settled will be described.
First, it is assumed that the frequency f (t) [Hz] of the power source 21 and the active power P (t) [W] at the time t are measured at predetermined sampling intervals dt. Further, a frequency fluctuation measurement value df (t) indicating an increase / decrease amount between samplings of the frequency f (t) and an active power fluctuation measurement value dP (t) indicating an increase / decrease amount between samplings of the active power P (t) are obtained. , Respectively, using the following equations (6) and (7).

  Next, the GF adjustment force (dPGFI1) is calculated using the following equation (8).

Here, if “df (t) · dP (t)”, which is a value obtained by multiplying the frequency fluctuation measurement value df (t) and the active power fluctuation measurement value dP (t), is a negative value, the frequency is increased or decreased. The active power is provided in the reverse direction. In this case, since the active power is provided so as to cancel the fluctuation of the frequency, it is counted as a positive adjustment force. On the other hand, if “df (t) · dP (t)” is a positive value, it is counted as a negative adjustment force.
In the actual power supply 21, there is a delay in the response of the power generation output. For this reason, for example, when a decrease in frequency occurs, a decrease in frequency and an increase in generated output (active power) as a response do not occur at the same time. It will be delayed in time. As described above, in the present embodiment, the smaller the delay of the response of the generated power (in this example, the increase of the generated power), the higher the value. Therefore, here, the response of the power source 21 to the frequency fluctuation measurement value df (t) at time t is a time series signal of the active power fluctuation measurement value dP (t) in the period from time t to a predetermined time in advance. Calculation is performed by convolution integration obtained by weighted averaging with w (t). Specifically, the response at time t is calculated using the following equation (9).

  Further, the expression (9) can be simplified as the following expression (10) using the convolution integration symbol *.

  Using equation (10), equation (8) is rewritten to calculate GF adjusting force dPGFI1 that takes into account the response delay time of power supply 21. Specifically, the GF adjustment force dPGFI1 is calculated using the following equation (11).

  Further, the GF adjustment force dPGFI1 can also be expressed by the following equation (12) using the exchange rule of convolution integration.

  Here, dfw of equation (12) is calculated using equation (13) below.

(Functional configuration and processing flow of control device)
FIG. 18 is a block diagram illustrating a functional configuration and a processing flow of a control device according to the sixth embodiment.
As illustrated in FIG. 18, the CPU 2100 of the control device 210 according to the sixth embodiment operates as a control unit 220, an adjustment power amplification unit 230, an addition processing unit 240, and a speed arbitration rate determination unit 250 by operating according to a program. Demonstrate the function.
The control device 210 according to the present embodiment changes the speed arbitration rate in the power source 21 and optimizes the GF adjustment force so that more consideration can be obtained based on the weighting factor w acquired from the adjustment force command device 10. Turn into. Thereby, the power generation company G can autonomously increase the GF adjustment power without receiving a command every time the GF adjustment power is insufficient from the general power transmission and distribution company T.

The control unit 220 (calculation unit 222) has a first proportionality constant (δ) including a speed arbitration rate (δ) defined in advance with respect to a deviation (frequency deviation Δf) between the observed value of the rotational speed of the generator 212 and the reference value. A first adjustment command value (ΔP) obtained by multiplying 1 / δ · Pn / fn) is calculated. In the present embodiment, the speed adjustment rate δ used by the calculation unit 222 of the control unit 220 is also referred to as “first speed adjustment rate”. The value of the first speed arbitration rate δ is a value defined in advance according to the characteristics of the generator 212 and the like.
The speed arbitration rate determination unit 250 (calculation unit 252 to be described later) determines an optimum speed arbitration rate so that the value of the GF adjustment force in the power supply 21 is increased. In the present embodiment, as described above, the weighting factor w is set so that the value of the GF adjusting force increases as the speed response to the frequency fluctuation is higher (the delay time is shorter). Therefore, the speed arbitration rate determination unit 250 determines the second speed arbitration rate (δ *) indicating the optimum speed arbitration rate based on the weighting coefficient (w) acquired from the adjustment force command device 10.
The adjustment force amplifying unit 230 multiplies the frequency deviation Δf of the generator 212 by a second proportionality constant including the second proportionality factor δ * determined by the speed adjustment rate determination unit 250. (ΔP3) is calculated. The third adjustment force command value ΔP3 indicates the degree to which the adjustment force is amplified.
The addition processing unit 240 calculates the post-amplification adjustment force command value ΔP ′ obtained by adding the third adjustment force command value ΔP3 to the first adjustment force command value ΔP.

  Hereinafter, the processing flow of the speed arbitration rate determination unit 250, the adjustment power amplification unit 230, and the addition processing unit 240 will be described in detail with reference to FIG. Note that the processing flow of the control unit 220 is the same as that of the first embodiment, and a detailed description thereof will be omitted.

First, the processing of the speed arbitration rate determination unit 250 will be described in detail.
As shown in FIG. 18, the weight coefficient acquisition unit 251 of the speed arbitration rate determination unit 250 acquires the weight coefficient w from the adjustment force command device 10. In addition, the calculation unit 252 of the speed adjustment rate determination unit 250 calculates the second speed adjustment rate δ * based on the weighting factor w acquired by the weighting factor acquisition unit 251.
The GF adjustment force to be settled is calculated based on Expression (12) as described above. That is, if the weighted frequency fluctuation measurement value dfw (t) at time t is different from the active power fluctuation measurement value dP (t), the weighted frequency fluctuation measurement value dfw (t) at time t. Since the active power fluctuates so as to cancel out, the active power fluctuation measured value dP (t) functions as a GF adjustment force. Based on this idea, the calculation unit 252 uses the probability J of the weighted frequency fluctuation measurement value dfw (t) and the active power fluctuation measurement value dP (t) to have different signs as an index for optimizing the GF adjustment power. Select. This probability J is expressed by the following formula (14).

  Here, if the probability J can be set to “1”, dP at all times functions as the adjustment force, and thus the GF adjustment force is maximized. A sufficient condition for realizing this is that there is a positive constant C that satisfies the following equation (15).

  When the power source 21 performs the governor-free operation, the power generation amount is adjusted according to the frequency. Here, when the impulse response of the transfer function from the frequency to the power generation amount is g, the right side of the equation (15) is expressed by the following equation (16), and the left side of the equation (15) is expressed by the following equation (17). expressed.

  Therefore, it is optimal to adjust the impulse response g so that the following expression (18) is obtained.

FIG. 19 is a diagram illustrating an example of an impulse response according to the sixth embodiment.
In the present embodiment, as shown in FIG. 19, a table D1 in which the impulse response g for each speed adjustment rate is calculated in advance is stored in the storage 2103 of the control device 210 in advance.
The calculation unit 252 selects a speed arbitration rate that is closest in direction to the weighting factor w from the table D1 as the second speed arbitration rate. Specifically, the calculation unit 252 obtains a second speed arbitration rate δ * indicating an optimal speed arbitration rate using the following equation (19). That is, the calculation unit 252 considers the impulse response g and the weighting factor w as vectors, takes an inner product, and calculates the optimum speed arbitration rate, that is, the second speed arbitration rate δ, with the vector having the smallest cosine angle. Select as *. Gδ is a notation for clearly indicating that the impulse response g follows the speed arbitration rate δ.

Next, the process of the adjustment power amplification unit 230 will be described in detail.
The computing unit 236 of the adjustment force amplifying unit 230 according to the present embodiment acquires the second speed arbitration rate δ * from the speed arbitration rate determining unit 250. Then, the operation unit 236 multiplies the frequency deviation Δf by a second proportional constant ((1 / δ * −1 / δ) · Pn / fn) including the second speed arbitration rate δ *. The value (ΔP3) is calculated.

Next, the processing of the addition processing unit 240 will be described in detail.
The addition processing unit 240 according to the present embodiment calculates an post-amplification adjustment force command value ΔP ′ obtained by adding the third adjustment force command value ΔP3 to the first adjustment force command value ΔP. As a result, the GF adjustment command value ΔP ′ is expressed by the second speed arbitration rate δ determined by the speed arbitration rate determining unit 250 as defined by the following formula (20). The calculation will be changed to *.

  Further, the addition processing unit 240 outputs the calculated post-amplification adjustment force command value ΔP ′ to the fuel supply valve V (FIG. 2) as a final GF adjustment force command.

  As described above, by adding the speed arbitration rate determination unit 250, the adjustment power amplification unit 230, and the addition processing unit 240 according to the present embodiment, the optimal control as described above can be performed without changing the function of the existing control unit 220. By determining the second speed arbitration rate δ *, the GF adjustment force by the generator 212 can be amplified.

(Function, effect)
As described above, the control device 210 according to the sixth embodiment determines the second speed arbitration rate δ * of the generator 212 based on the weighting factor w according to the response delay of the generator 212, and determines the frequency The deviation Δf is multiplied by a second proportional constant ((1 / δ * −1 / δ) · Pn / fn) including the determined second speed arbitration rate δ * to indicate the degree of amplification of the GF adjustment force. A third adjustment force command value ΔP ′ is calculated. Further, the control device 210 amplifies the adjustment force of the generator 212 based on the third adjustment force command value ΔP ′.
The control device 210 calculates the post-amplification adjustment force command value ΔP ′ using the second speed arbitration rate δ * optimized in accordance with the weighting factor w in this way, so that the output of the generator 212 is as large as possible. Output control can be performed so as to be counted as the GF adjustment force.

Further, the adjustment force command device 10 transmits the weighting coefficient w as a GF adjustment force amplification command to the control device 210 of the generator 212 connected to the target power distribution network N1.
In this way, the general power transmission and distribution company T transmits the weighting coefficient w to each power generation company G in advance, so that each power generation company G is not instructed every time adjustment power due to frequency fluctuation is insufficient. Each power generation company G can be encouraged to adjust the GF adjustment power autonomously, and the GF adjustment power can be procured flexibly.

In addition, although the control apparatus 210 demonstrated the aspect which acquires the weighting coefficient w from the adjustment force instruction | command apparatus 10 in this embodiment, it is not restricted to this. In another embodiment, the weight coefficient w may be stored in advance in the storage 2103 of the control device 210. In this case, the weighting factor acquisition unit 251 of the speed arbitration rate determination unit 250 acquires the weighting factor w from the storage 2103.
Thus, for example, even when the communication network connecting the control device 210 and the adjustment force command device 10 is temporarily disconnected, the control device 210 stores the weighting factor stored in the storage 2103 in advance. With reference to w, the output of the generator 212 can be appropriately adjusted.

(Modification of the sixth embodiment)
FIG. 20 is a block diagram illustrating a functional configuration and a processing flow of a control device according to a modified example of the sixth embodiment.
Hereinafter, a modification of the sixth embodiment will be described with reference to FIG.

The speed arbitration rate determining unit 250 according to the modification of the sixth embodiment further includes a lower limit setting unit 253 in addition to the sixth embodiment.
The lower limit setting unit 253 applies and outputs a predetermined lower limit value to the second speed arbitration rate δ * obtained by the calculation unit 252. Thereby, the control apparatus 210 can amplify adjustment power in the range which does not exceed the limit as the power supply 21 (the turbine apparatus 211, the generator 212).

In addition, the lower limit setting unit 253 according to the present embodiment inputs a break detection signal from the breaker B. The circuit breaker B is the same device as the modified example of the first embodiment.
When the lower limit setting unit 253 receives a break detection signal from the circuit breaker B, the lower limit setting unit 253 sets, for example, the second speed adjustment rate δ * to the same value as the first speed adjustment rate δ. As a result, the lower limit setting unit 253 can disable the function of amplifying the GF adjustment force and prevent hunting by the governor-free operation control when the disconnection is performed.
In another embodiment, when the disconnection of the generator 212 is detected, the value of the second speed arbitration rate δ * is limited within a range in which the effect can be obtained without causing hunting of the generator 212. An aspect may be sufficient.

<Seventh Embodiment>
Next, the power supply and demand system according to the seventh embodiment will be described with reference to FIGS.

(Overall configuration of power supply and demand system)
FIG. 21 is a diagram illustrating an overall configuration of a power supply and demand system according to the seventh embodiment.
As shown in FIG. 21, in the power supply and demand system 1 according to the seventh embodiment, a measuring instrument 50 is installed at at least one representative point of the target transmission and distribution network N1. For example, the measuring instrument 50 is installed at a connection point between the customer C and the target power distribution network N1. The measuring instrument 50 can measure the frequency (representative frequency) at the representative point.

  The adjustment force command device 10 according to the present embodiment receives the measurement result (representative frequency measurement value f) of the representative frequency at the representative point from the measuring instrument 50. Then, the adjustment force command device 10 transmits an appropriate weighting factor w (GF adjustment force amplification command) according to the measurement result of the measuring instrument 50.

(Functional configuration of adjusting force command device)
FIG. 22 is a block diagram illustrating a functional configuration of the adjusting force command device according to the seventh embodiment.
As illustrated in FIG. 22, the CPU 100 of the adjustment force command apparatus 10 according to the seventh embodiment operates according to a program, thereby allowing an operation reception processing unit 1000, a transmission processing unit 1001, a measurement value acquisition unit 1002, and a weighting factor. The function as the determination unit 1004 is exhibited.

Since the functions of the operation reception processing unit 1000 and the transmission processing unit 1001 are the same as those in the above-described embodiments, detailed description thereof will be omitted.
The measurement value acquisition unit 1002 acquires the representative frequency measurement value f of the representative point of the target transmission and distribution network N1 from the measuring instrument 50. The representative frequency measurement value f acquired by the measurement value acquisition unit 1002 is stored and accumulated in the storage 104.
The weighting factor determination unit 1004 determines the value of the weighting factor w based on the measurement result of the measuring instrument 50.
The transmission processing unit 1001 transmits the weighting factor w determined by the weighting factor determination unit 1004 to each power generation company G as a GF adjustment power amplification command.

(Functional configuration and processing flow of adjustment force command device)
FIG. 23 is a block diagram illustrating a functional configuration and a processing flow of the adjusting force command device according to the seventh embodiment.
Hereinafter, the flow of processing executed by the CPU 100 will be described with reference to FIG.

  First, the weighting factor determination unit 1004 of the CPU 100 acquires the representative frequency measurement value f at the representative point of the target transmission and distribution network N1 through the measuring instrument 50 and the measurement value acquisition unit 1002 (FIG. 22). Then, the calculation unit 141 obtains a difference x between the representative frequency measurement value f (t) acquired at time t and the representative frequency measurement value f (t−1) acquired last time (stored in the storage 104).

  Next, the calculation unit 142 calculates the square of the difference x (x ^ 2), and the calculation unit 143 calculates the square root of the average value of x ^ 2. That is, the arithmetic unit 142 and the arithmetic unit 143 obtain the root mean square (RMS) of the difference x.

  Next, the determination unit 144 determines the weighting coefficient w according to the root mean square value of the difference x. For example, the determination unit 144 selects and determines the weighting factor w corresponding to the root mean square value of the difference x from the weighting factor table D2 (FIG. 24) defined in advance.

FIG. 24 is a diagram illustrating an example of a weighting coefficient table according to the seventh embodiment.
As shown in FIG. 24, in this embodiment, it is assumed that the weighting coefficient table D2 is stored in the storage 104 in advance. The weighting coefficient table D2 is a table that predefines the weighting coefficient w for each delay time according to the value of the representative frequency fluctuation (difference x). For example, in this embodiment, the weight coefficient w is set to be heavier on the quick response side as the variation (difference x) in the representative frequency is larger (the weight is increased as the delay time is smaller).

(Function, effect)
As described above, the adjustment force command device 10 according to the seventh embodiment calculates the weighting coefficient based on the difference between the frequency measured at the representative point of the target transmission and distribution network N1 and the representative frequency acquired last time. decide.
By doing in this way, the adjustment power instruction | command apparatus 10 can guide | induct the GF adjustment power of the electric power generation company G to the side where a quick response increases, and can strengthen the stability of the object transmission / distribution network N1.

  In each of the above-described embodiments, the various processing processes of the adjusting force command device 10 and the control device 210 are stored in a computer-readable recording medium in the form of a program, and the computer reads the program. The above-described various processes are performed by executing the above. The computer-readable recording medium is a magnetic disk, a magneto-optical disk, a CD-ROM, a DVD-ROM, a semiconductor memory, or the like. Alternatively, the computer program may be distributed to the computer via a communication line, and the computer that has received the distribution may execute the program.

  The program may be for realizing a part of the functions described above. Furthermore, what can implement | achieve the function mentioned above in combination with the program already recorded on the computer system, what is called a difference file (difference program) may be sufficient.

  Moreover, in another embodiment, the aspect with which the other computer connected via the network may comprise a part of each function which the adjustment force instruction | command apparatus 10 and the control apparatus 210 have may be sufficient.

  As described above, several embodiments according to the present invention have been described. However, all these embodiments are presented as examples, and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the invention described in the claims and equivalents thereof as well as included in the scope and gist of the invention.

  For example, in the above-described sixth embodiment, the control device 210 has acquired the weighting factor w from the adjustment force command device 10 as the GF adjustment force amplification command, and has calculated the second speed arbitration rate δ *. It is not limited to this. In another embodiment, the adjustment force command device 10 may calculate the second speed arbitration rate δ * and transmit it to each power generation company G as a GF adjustment force amplification command.

DESCRIPTION OF SYMBOLS 1 Electric power supply-and-demand system 10 Adjustment power instruction | command apparatus 100 CPU
1000 Operation reception processing unit 1001 Transmission processing unit 1002 Measurement value acquisition unit 1003 Adjustment force coefficient calculation unit 1004 Weight coefficient determination unit 101 Memory 102 Communication interface 103 Operation panel 104 Storage 111, 112, 114, 116 Calculation unit 113 Average value calculation unit 115 Integration processing unit 141, 142, 143 Calculation unit 144 Determination unit 21 Power supply 210 Controller 2100 CPU
2101 Memory 2102 Communication interface 2103 Storage 220 Control unit 221, 222, 223 Calculation unit 224 Load limiter 230 Adjusting power amplification unit 231 Calculation unit 232 Multiplication processing unit 233 Upper limit setting unit 234 Integration processing unit 235 Low-frequency cutoff filter 240 Addition processing unit 250 Speed arbitration rate determination unit 251 Coefficient acquisition unit 252 Calculation unit 253 Lower limit setting unit 211 Turbine device 212 Generator 50 Measuring instrument N1 Target transmission / distribution network N2, N3 Untargeted transmission / distribution network

Claims (20)

A control device for a generator,
A calculation unit for calculating a first adjustment force command value corresponding to a deviation between the observed value of the rotational speed of the generator and a reference value;
An adjustment force amplifying unit that acquires an adjustment force amplification coefficient from an external device and calculates a second adjustment force command value indicating a degree of amplification of the adjustment force based on the first adjustment force command value and the adjustment force amplification coefficient When,
With
Amplifying the adjustment force of the generator based on the second adjustment force command value;
Control device. An addition processing unit that calculates an amplified adjustment force command value obtained by adding the first adjustment force command value and the second adjustment force command value;
The first adjustment force command value is calculated by multiplying the deviation by a predetermined first proportionality constant,
The second adjustment force command value is calculated by multiplying the first adjustment force command value and the adjustment force amplification coefficient,
Using the post-amplification adjustment force command value, command to amplify the adjustment force of the generator,
The control device according to claim 1. As an instruction from the external device, an adjustment force amplification coefficient increase / decrease value for increasing / decreasing the adjustment force amplification coefficient is received, and the received adjustment force amplification coefficient increase / decrease value is integrated over time to calculate the adjustment force amplification coefficient. The control device according to claim 2, further comprising an integration processing unit. The control device according to claim 2, wherein the adjustment force amplification coefficient is reduced when the generator is disconnected. The adjustment force amplifying unit is
The control device according to any one of claims 1 to 4, further comprising a low-frequency cutoff filter that blocks a low-frequency band of the deviation. A control device for a generator,
A calculation unit for calculating a first adjustment force command value by multiplying a deviation between the observed value of the rotational speed of the generator and the reference value by a first proportional constant including a first speed arbitration rate defined in advance;
A speed arbitration rate determining unit that determines a second speed arbitration rate of the generator based on a weighting factor corresponding to a delay in response of the generator;
An adjustment force amplifying unit that multiplies the deviation by a second proportionality constant that includes the determined second speed arbitration rate to calculate a third adjustment force command value that indicates the degree to which the adjustment force is amplified;
With
Amplifying the adjusting force of the generator based on the third adjusting force command value;
Control device. An addition processing unit that calculates an after-amplification adjustment force command value obtained by adding the first adjustment force command value and the third adjustment force command value;
Using the post-amplification adjustment force command value, command to amplify the adjustment force of the generator,
The control device according to claim 6. The control device according to claim 6 or 7, wherein when the generator is disconnected, the second speed adjustment rate is reduced. A control device according to any one of claims 1 to 8,
The generator;
A turbine device for rotationally driving the generator;
With power supply. A method for controlling a generator,
Calculating a first adjusting force command value corresponding to a deviation between the observed value of the rotational speed of the generator and a reference value;
Obtaining an adjustment force amplification coefficient from an external device, and calculating a second adjustment force command value indicating a degree of amplification of the adjustment force based on the first adjustment force command value and the adjustment force amplification coefficient;
Have
Amplifying the adjustment force of the generator based on the second adjustment force command value;
Control method. In the generator control device,
Calculating a first adjusting force command value corresponding to a deviation between the observed value of the rotational speed of the generator and a reference value;
Obtaining an adjustment force amplification coefficient from an external device, and calculating a second adjustment force command value indicating a degree of amplification of the adjustment force based on the first adjustment force command value and the adjustment force amplification coefficient;
And execute
Amplifying the adjustment force of the generator based on the second adjustment force command value;
program. In order to increase the proportionality constant of the adjustment force to be output according to the deviation between the observed value of the rotational speed of the generator and the reference value for the generator control device connected to the transmission / distribution network to be managed An adjustment force command device including a transmission processing unit that transmits a command. A measurement value acquisition unit that acquires a measurement value of active power exchanged at a connection point between the transmission / distribution network to be managed and another transmission / distribution network, and a measurement value of a frequency at the connection point;
An adjustment force coefficient calculating unit that calculates an adjustment force coefficient indicating a degree of influence of the fluctuation of the active power on the fluctuation of the frequency based on the acquired measurement value of the active power and the measurement value of the frequency; With
The transmission processing unit
The adjusting force command device according to claim 12, wherein the command indicating the degree of increase of the proportionality constant according to a deviation between the adjusting force coefficient and a target value of the adjusting force coefficient is transmitted. The measurement value acquisition unit
Obtaining a measured value of active power transferred at the connection point belonging to some area of the power transmission and distribution network, and a measured value of the frequency at the connection point,
The adjustment force coefficient calculation unit is
Based on the acquired measurement value of the active power and the measurement value of the frequency, the adjustment power coefficient for the partial area is calculated,
The transmission processing unit
The command according to the deviation between the adjustment power coefficient relating to the partial area and the target value of the adjustment power coefficient relating to the partial area is transmitted to a control device of a generator belonging to the partial area. The adjustment force command device described in 1. In order to increase the proportionality constant of the adjustment force to be output according to the deviation between the observed value of the rotational speed of the generator and the reference value for the generator control device connected to the transmission / distribution network to be managed An adjustment force command method comprising a step of transmitting a command. Adjusting force command device
In order to increase the proportionality constant of the adjustment force to be output according to the deviation between the observed value of the rotational speed of the generator and the reference value for the generator control device connected to the transmission / distribution network to be managed A program that executes the step of sending a command. A method for controlling a generator,
Multiplying the deviation between the observed value of the rotational speed of the generator and the reference value by a first proportionality constant including a first speed arbitration rate defined in advance, and calculating a first adjustment force command value;
Determining a second speed arbitration rate of the generator based on a weighting factor corresponding to a delay in response of the generator;
Multiplying the deviation by a second proportionality constant including the determined second speed arbitration rate to calculate a third adjustment force command value indicating a degree of amplification of the adjustment force;
Have
Amplifying the adjusting force of the generator based on the third adjusting force command value;
Control method. In the generator control device,
Multiplying the deviation between the observed value of the rotational speed of the generator and the reference value by a first proportionality constant including a first speed arbitration rate defined in advance, and calculating a first adjustment force command value;
Determining a second speed arbitration rate of the generator based on a weighting factor corresponding to a delay in response of the generator;
Multiplying the deviation by a second proportionality constant including the determined second speed arbitration rate to calculate a third adjustment force command value indicating a degree of amplification of the adjustment force;
And execute
Amplifying the adjusting force of the generator based on the third adjusting force command value;
program. An adjustment force command device comprising: a transmission processing unit that transmits a weighting factor corresponding to a delay in response of the generator to a generator control device connected to a power transmission and distribution network to be managed. A measurement value acquisition unit for acquiring a representative frequency measured at a representative point of the transmission and distribution network;
A weighting factor determination unit that determines the weighting factor based on the difference between the acquired representative frequency and the representative frequency acquired last time;
Further comprising
The adjusting force command device according to claim 19.

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