Measuring devices, measuring systems, measuring methods and procedures products

Abstract

The settlement device includes: a measurement value acquisition unit, which acquires the measurement value of the effective power exchanged at a connection point with an adjustment force providing unit that can provide adjustment force to the transmission and distribution network and the measurement value of the frequency at the connection point; an adjustment power metering unit, which measures the adjustment power at the connection point based on the acquired measurement value of the effective power and the measurement value of the frequency; an adjustment power amount calculation unit, which accumulates the adjustment power with respect to time to calculate the adjustment power amount for a given period at the connection point; an electric power acquisition unit, which acquires the electric power exchanged at the connection point during the given period; and a settlement unit, which settles the consideration for the adjustment power provided by the adjustment force providing unit and the electric power exchanged by the adjustment force providing unit based on the sum of the adjustment power amount and the electric power amount.

Description

Technical Field

[0001] This disclosure relates to settlement devices, settlement systems, settlement methods, and procedures.

[0002] This application claims priority based on Japanese Patent Application No. 2020-148878, filed on September 4, 2020, the contents of which are incorporated herein by reference. Background Technology

[0003] The transmission and distribution system maintains frequency by combining "regulation forces" from power sources based on (1) GovernorFree (GF), (2) Load Frequency Control (LFC), and (3) Economic Load Dispatching Control (EDC) in response to the changing cycles of electricity demand. Through electricity liberalization, the Transmission System Operator (TSO) envisions publicly soliciting regulation forces or raising regulation forces from power generation operators and other entities through the market.

[0004] Electricity demand in office buildings, factories, and ordinary households fluctuates constantly. If the electricity demand of the transmission and distribution system exceeds the electricity supply, the frequency of the transmission and distribution system will be lower than a reference value (e.g., 50Hz or 60Hz). Conversely, if the electricity supply exceeds the electricity demand, the frequency will be higher than the reference value. The so-called "adjustment force" is used to balance the constantly changing demand and supply. Ideally, with the adjustment force provided, the frequency will be consistent with the reference value.

[0005] For demand fluctuations lasting from a few minutes to less than 30 minutes, Load Frequency Control (LFC) is used. Based on LFC, a regulating force is provided corresponding to the frequency changes in the transmission and distribution system. That is, when the frequency of the transmission and distribution system is below the reference value, the system operator managing the system obtains a positive regulating force from the power generation operator. Conversely, when the frequency of the transmission and distribution system exceeds the reference value, the system operator obtains a negative regulating force from the power generation operator. The regulating force collection based on LFC is actually carried out by the power generation operator adjusting the power output in response to the commands sent from the system operator at every moment.

[0006] Stable power supply based on load frequency control (LFC) refers to the provision of regulation capacity by power generation operators in accordance with instructions from system users. Therefore, in the context of electricity liberalization, this paper examines the mechanism by which system users pay power generation operators for the performance of their regulation capacity provision (the settlement of regulation capacity provision).

[0007] However, if a system user issues a command to adjust the force with a sharp change within a very short period of time, the power operator may be unable to respond and could be penalized. Furthermore, frequency varies across different locations within the transmission and distribution system. While it is desirable to command the adjustment force with extreme precision at every location within the system, this is impractical for short-cycle fluctuations (around 3-5 seconds).

[0008] Therefore, in response to short-cycle demand fluctuations, adjustments are typically made autonomously by the power generation operator across all power sources (including turbine units and generators) based on non-regulating (GF) operation. Non-regulating operation refers to controlling the fuel supply to the turbine unit in response to changes in the generator's rotational speed caused by load variations, thereby maintaining that rotational speed at a constant level.

[0009] Furthermore, the power source powered by the turbine inherently possesses inertial energy during operation. This inertial energy contributes to stable operation by automatically transferring energy between the turbine and the load in response to load variations, acting as a buffer against these variations.

[0010] The provision of regulating force based on non-speed-controlled operation or inertia is not measured by the system user because it occurs autonomously by each power source, independent of commands from the system user. Therefore, the regulating force provided through non-speed-controlled operation or inertia is not subject to payment (settlement) by the system user. This creates an imbalance where payment is made for regulating force provided through load frequency control, but not for regulating force provided through non-speed-controlled operation. Therefore, this paper seeks to include the regulating force provided through non-speed-controlled operation in the measurement of the actual regulating force provided by power sources such as power supplies.

[0011] For example, Patent Document 1 discloses a price formation system and method for an electricity market that can improve price transparency and ensure the adjustment force required for stable supply.

[0012] Prior art literature

[0013] Patent documents

[0014] Patent Document 1: JP Patent No. 5886400 Summary of the Invention

[0015] -The problem the invention aims to solve-

[0016] However, while the technology described in Patent Document 1 is particularly effective for situations where the balance of power supply and demand in a power system fluctuates over long periods of 30 minutes or 1 hour, it is not effective for situations where the balance of supply and demand fluctuates over short periods of about 1 second.

[0017] Specific examples are given. For instance, there are long-term fluctuations in frequency that threaten a stable power supply. This is particularly evident in series-type power systems like those in Japan (where multiple power companies operate in series), where the frequencies at both ends of the series-type power system (e.g., Kyushu Electric Power and Chubu Electric Power in Japan's 60Hz system) swing in opposite directions like a seesaw with a period of 1 second to several seconds. In such a situation, power surpluses and shortages occur simultaneously in locations far apart. For example, at a moment when the frequency is high at Kyushu Electric Power, located at one end of the seesaw, the frequency is low at Chubu Electric Power, located at the opposite end. In this case, to utilize the technology described in Patent Document 1, the market price of the adjusting force must be changed for each location. Furthermore, to represent how the price increases or decreases depending on the frequency, the price must be changed at a frequency of approximately 10 times per cycle. Assuming the period of frequency fluctuation is set to 1 second, the market price must be updated every 0.1 seconds. Patent Document 1 describes collecting information in a system application computer of a system application organization and making price decisions on that computer. Therefore, it would be difficult to make real-time price decisions for all regions in a centralized location, considering factors such as computing power and reliability.

[0018] Furthermore, Patent Document 1 describes a terminal that sends prices to electricity users. Even assuming that the issues of computing power and reliability are resolved, the aforementioned situation could lead to market chaos due to price fluctuations occurring in cycles of one to several seconds. Thus, the method in Patent Document 1, which determines electricity prices based on the balance of supply and demand, is ineffective, regardless of its transparency, in the face of the long-term fluctuations in the power system and the subsequent several-second cycle of supply and demand adjustments. Therefore, a mechanism is needed that measures adjustment power and settles accounts based on its performance.

[0019] This disclosure addresses such a problem by providing a settlement device, settlement system, settlement method, and procedure that can settle both the consideration corresponding to the power supplied and received and the consideration corresponding to the adjustment of power supply and demand.

[0020] -Methods used to solve problems-

[0021] According to one aspect of this disclosure, the settlement device comprises: a measurement value acquisition unit that acquires a measurement value of the effective power received at a connection point with a regulating force providing unit capable of providing regulating force to a power transmission and distribution network and a measurement value of the frequency at the connection point; a regulating power metering unit that measures the regulating power at the connection point based on the acquired measurement value of the effective power and the measurement value of the frequency; a regulating power calculation unit that calculates the regulating power at the connection point for a given period based on the regulating power; a power acquisition unit that acquires the power received at the connection point during the given period; and a settlement unit that settles the consideration for the regulating force provided by the regulating force providing unit and the power received by the regulating force providing unit based on the sum of the regulating power and the power quantity.

[0022] According to one aspect of this disclosure, a settlement system comprises: a settlement device located at a connection point with a regulating force providing unit capable of providing regulating force to a power transmission and distribution network; and a server communicatively connected to the settlement device. The settlement device includes: a measurement value acquisition unit that acquires a measurement value of the effective power received at the connection point and a measurement value of the frequency at the connection point; a regulating power metering unit that measures the regulating power at the connection point based on the acquired measurement values ​​of the effective power and the frequency; an adjustment unit that multiplies the measured regulating power by a price adjustment coefficient for adjusting the regulating power; a regulating power calculation unit that accumulates the value obtained by multiplying the regulating power by the price adjustment coefficient over time to calculate the regulating power at the connection point for a given period; a power acquisition unit that acquires the power received at the connection point during the given period; and a settlement unit that settles the regulating force provided by the regulating force providing unit and the consideration for the power received by the regulating force providing unit based on the sum of the regulating power and the power quantity. The server includes: an evaluation unit that evaluates the stability of the adjustment force provided by the adjustment force supply unit; and a coefficient determination unit that changes the price adjustment coefficient according to the evaluation result of the evaluation unit evaluating the stability. The adjustment unit of the settlement device receives the price adjustment coefficient changed by the coefficient determination unit of the server. For simplicity, the adjustment force supplied by the power generation operator has been described. However, if office buildings, factories, and ordinary households can reduce demand during peak electricity usage periods by shutting down air conditioning, etc., based on the daily electricity usage forecast published by the system user, they can also provide adjustment force. Therefore, like power sources, office buildings, factories, and ordinary households are all adjustment force supply units.

[0023] According to one aspect of this disclosure, the settlement method comprises the following steps: obtaining a measurement of the effective power received at a connection point with a regulating force providing unit capable of providing regulating force to the transmission and distribution network and a measurement of the frequency at the connection point; measuring the regulating power at the connection point based on the obtained measurement of the effective power and the measurement of the frequency; calculating the regulating power at the connection point for a given period based on the regulating power; obtaining the power received at the connection point during the given period; and settling the consideration for the regulating force provided by the regulating force providing unit and the power received by the regulating force providing unit based on the sum of the regulating power and the power quantity.

[0024] According to one aspect of this disclosure, the program causes the computer of the settlement device to perform the following steps: acquiring a measurement of the effective power received at a connection point with a regulating force providing unit capable of providing regulating force to the power transmission and distribution network and a measurement of the frequency at the connection point; measuring the regulating power at the connection point based on the acquired measurement of the effective power and the measurement of the frequency; calculating the regulating power at the connection point for a given period based on the regulating power; acquiring the power received at the connection point during the given period; and settling the consideration for the regulating force provided by the regulating force providing unit and the power received by the regulating force providing unit based on the sum of the regulating power and the power quantity.

[0025] -Invention Effects-

[0026] According to the settlement device, settlement system, settlement method and procedure involved in this disclosure, it is possible to settle both the consideration corresponding to the power supplied and received and the consideration corresponding to the adjustment of power supply and demand. Attached Figure Description

[0027] Figure 1 This is a diagram showing the overall structure of the settlement system according to the first embodiment of this disclosure.

[0028] Figure 2 This is a diagram showing in detail the structure of the settlement system according to the first embodiment of this disclosure.

[0029] Figure 3 This is a block diagram illustrating the hardware structure of the settlement device according to the first embodiment of this disclosure.

[0030] Figure 4 This is a block diagram illustrating the functional structure of the settlement device according to the first embodiment of this disclosure.

[0031] Figure 5 This is the first figure used to illustrate the function of the settlement device according to the first embodiment of this disclosure.

[0032] Figure 6This is Figure 2, which illustrates the function of the settlement device according to the first embodiment of this disclosure.

[0033] Figure 7 This is a block diagram illustrating the functional structure of the settlement device according to the second embodiment of this disclosure.

[0034] Figure 8 This is a block diagram illustrating the hardware structure of the server according to the third embodiment of this disclosure.

[0035] Figure 9 This is a block diagram illustrating the functional structure of the server and settlement device according to the third embodiment of this disclosure.

[0036] Figure 10 This is a block diagram illustrating the functional structure of the settlement device according to the fourth embodiment of this disclosure.

[0037] Figure 11 This is a block diagram illustrating the functional structure of the evaluation unit according to the fourth embodiment of this disclosure.

[0038] Figure 12 This is a block diagram illustrating the functional structure of the settlement device and server involved in a variation of the fourth embodiment of this disclosure.

[0039] Figure 13 This is a block diagram illustrating the functional structure of the settlement device according to the fifth embodiment of this disclosure.

[0040] Figure 14 This is a block diagram illustrating the functional structure of the evaluation unit according to the fifth embodiment of this disclosure.

[0041] Figure 15 This is a block diagram illustrating the functional structure of the settlement device and server involved in a variation of the fifth embodiment of this disclosure.

[0042] Figure 16 This is a block diagram illustrating the functional structure of the settlement device according to the sixth embodiment of this disclosure. Detailed Implementation

[0043] <First Implementation>

[0044] The following is for reference. Figures 1 to 6 The settlement device and settlement system 1 equipped with the settlement device according to the first embodiment of this disclosure will be described.

[0045] (Overall structure of the settlement system)

[0046] Figure 1 This describes the overall structure of the settlement system according to the first embodiment of this disclosure.

[0047] exist Figure 1 The diagram shows the power generation operators G (GA, GB) who generate electricity, the system users T who transmit and distribute the generated electricity, and the electricity users C who consume the transmitted and distributed electricity. Figure 1 In the example shown, the power transmission and distribution network (hereinafter referred to as object power transmission and distribution network N1) managed by system user T connects power generation operator G and power user C. The electricity generated by power generation operator G flows to power user C through object power transmission and distribution network N1. In addition, object power transmission and distribution network N1 is also connected to other power transmission and distribution networks (hereinafter referred to as object external power transmission and distribution network N2) managed by other general power transmission and distribution operators.

[0048] like Figure 1 As shown, the settlement system 1 has a server 10 and a settlement device 50.

[0049] The settlement device 50 is installed at the connection point between the target transmission and distribution network N1 and the adjustment force providing unit managed by the power generation operator G, etc., and can settle the consideration for the electricity received at this connection point and the "adjustment force" provided by the power generation operator G, etc. Here, the so-called "adjustment force providing unit" refers to the device that can provide adjustment force to balance the power supply and demand of the transmission and distribution network (target transmission and distribution network N1), specifically referring to the power source managed by the power generation operator G (described later), stabilization equipment, the load managed by the power user C, and the transmission and distribution network (external transmission and distribution network N2) set as an external management target by the system operator T.

[0050] The system user T manages (or uses) the server 10. For example, the server 10 collects the settlement results of the power generation operator G, etc., from the settlement devices set up at each connection point.

[0051] (Detailed structure of the settlement system)

[0052] Figure 2 This is a diagram showing in detail the structure of the settlement system according to the first embodiment of this disclosure.

[0053] exist Figure 2 The structure of power plant a of power generation operator GA is shown as an example. The diagram is omitted, but power generation operator GB also manages (or utilizes) power plant b with the same structure.

[0054] Power plant a has multiple power sources 21, 22, 23, ...

[0055] The following explanation uses power source 21, one of the multiple power sources 21, 22, 23, ... in power plant a, as an example. Furthermore, the structures and functions of the other power sources 22, 23, ... are the same as those of power source 21.

[0056] The power supply 21 includes a control unit 210, a turbine unit 211 (e.g., a gas turbine, a steam turbine, etc.) and a generator 212.

[0057] The control unit 210 controls the operation of the turbine unit 211 and the generator 212. Specifically, the control unit 210 continuously monitors the rotational speed of the generator 212 (corresponding to the output frequency) and automatically adjusts the supply of fuel or steam to the turbine unit 211 to maintain a constant rotational speed (non-speed-regulating operation). Based on this operation control, for example, if the load (electricity demand) increases for a short period and the rotational speed of the generator 212 decreases, the control unit 210 directly increases the supply of fuel, etc., to the turbine unit 211 to compensate for the decrease in rotational speed. The increase in output when the generator 212 returns to its original rotational speed corresponds to the aforementioned increase in load (electricity demand) and is the "adjusting force" provided by the power source 21. Thus, adjusting force is provided sequentially for short-cycle (3-5 second cycle) fluctuations in electricity demand through the non-speed-regulating operation of the power source 21.

[0058] (Hardware structure of the settlement device)

[0059] Figure 3 This is a block diagram illustrating the hardware structure of the settlement device according to the first embodiment of this disclosure.

[0060] like Figure 3 As shown, the settlement device 50 includes a CPU 500, a memory 501, a communication interface 502, a display device 503, a memory 504, a measuring device 505, and an electric force meter 506.

[0061] CPU500 is a processor that controls the overall operation of the settlement device 50.

[0062] Memory 501 is the so-called main storage device, which will be used for the CPU 500 to execute commands and data based on programs.

[0063] The communication interface 502 is an interface device used for exchanging information with external devices (particularly the server 10). Furthermore, in this embodiment, the communication unit and communication method implemented by the communication interface 502 are not particularly limited. For example, the communication interface 502 can be a wired connection interface for wired communication or a wireless communication module for wireless communication.

[0064] The display device 503 is a liquid crystal display or an organic EL display that displays the settlement results of the settlement device 50.

[0065] Memory 504 is a so-called auxiliary storage device, such as an HDD (Hard Disk Drive), an SSD (Solid State Drive), etc.

[0066] The measuring device 505 measures the effective power received at the connection point and the frequency at the connection point. For example, in the settlement device 50 provided at the connection point between the power source 21 and the target power transmission and distribution network N1, the measuring device 505 obtains the measured value of the effective power output from the power source 21 to the target power transmission and distribution network N1 (hereinafter also referred to as "effective power measurement value P") and the measured value of the frequency (hereinafter also referred to as "frequency measurement value f").

[0067] The power meter 506 measures the electrical force received or transmitted at the connection point. For example, in a settlement device 50 installed at the connection point between the power source 21 and the target power transmission and distribution network N1, the power meter 506 obtains the electrical force (hereinafter also referred to as "electric force W (kWh)") supplied from the power source 21 to the target power transmission and distribution network N1. Additionally, at the connection point, a power meter for measuring the amount of electricity used or supplied is sometimes installed. In this case, an existing power meter can be used as the power meter 506.

[0068] (Functional structure of the settlement device)

[0069] Figure 4 This is a block diagram illustrating the functional structure of the settlement device according to the first embodiment of this disclosure.

[0070] The following is for reference Figure 4 The functional structure of the settlement device 50 involved in this embodiment will be explained in detail.

[0071] like Figure 4 As shown, the CPU 500 of the settlement device 50 operates according to a program to perform the functions of a measurement value acquisition unit 5001, an electric power acquisition unit 5002, an adjustment power metering unit 5003, an adjustment power calculation unit 5004, an addition operation unit 5005, and a settlement unit 5006.

[0072] The measurement acquisition unit 5001 acquires from the measuring instrument 505 the measurement value of the effective power received at the connection point (effective power measurement value P (kW)) and the measurement value of the frequency at the connection point (frequency measurement value f (Hz)).

[0073] The power acquisition unit 5002 acquires the power W (kWh) received at the connection point during a given period from the power meter 506.

[0074] The adjusting power metering unit 5003 measures the adjusting power ΔP at the connection point based on the obtained effective power measurement value P and frequency measurement value f. GF .

[0075] Adjustment of power calculation unit 5004 for time-cumulative adjustment of power ΔP GF To calculate the adjustment electric force W at the connection point for a given period. GF (kWh).

[0076] The addition unit 5005 calculates the adjustment electric force W for a given period calculated by the adjustment electric force calculation unit 5004. GF The value W is the sum of the electric force W obtained by the electric force acquisition unit 5002 for a given period. bill (kWh).

[0077] Settlement Department 5006 based on adjusting electric power W GF With the sum of electric force W bill The settlement unit 5006 calculates the consideration for the regulating force provided by the regulating force providing unit and the electricity received by the regulating force providing unit. For example, if the regulating force providing unit is power source 21, the settlement unit 5006 combines the consideration for the regulating force based on power source 21 operating without speed regulation and the consideration for the electricity supplied by power source 21 to the target transmission and distribution network N1.

[0078] (Processing flow of the settlement device)

[0079] The following is for reference Figure 4 The processing flow of the settlement device 50 involved in this embodiment (the settlement method using the settlement device 50) will be explained in detail.

[0080] The electricity (kW) used to adjust the supply and demand of the power system becomes zero when accumulated over time, therefore it cannot be measured by simple accumulation. This contrasts with the simple measurement of electricity consumption or supply (kWh) by the power meter. Supply and demand adjustment is mainly carried out by power plants adjusting the generation to keep the frequency of the power system (the target transmission and distribution network N1) fixed. Specifically, it is achieved through speed-free operation as represented by equation (1).

[0081] [Mathematical Expression 1]

[0082]

[0083] In equation (1), "Δf" is the excess relative to the reference value of the frequency of the target power transmission and distribution network N1 (e.g., "50Hz", "60Hz", etc.), and the generated electricity is reduced by "ΔP" in proportion to it. Here, "P" N "This is the rated power output (kW) of generator 212," f N"This is the reference frequency (Hz)." "δ" is a value called the regulation rate, set in the power plant's control unit 210. It is typically set to a value of around 0.04. It specifies the relationship between the excess amount Δf relative to the reference frequency and the corresponding reduction in power ΔP. At a regulation rate of "0.04", it indicates that if the frequency increases by "0.04 × f", it means that... N (Hz)”, ΔP decreases “P” N For example, when operating at rated electrical output, if the frequency increases by 0.04 × f N (If the reference frequency is 60Hz, then it is 2.4Hz), and the power generation output is adjusted to "0". By adjusting the power generation so steeply, the frequency of the target transmission and distribution network N1 is kept constant.

[0084] The operation of power generation operator G is primarily based on the consideration for supplying electricity. The main consideration is electrical power (kWh). This is the cumulative value over time of the electricity (kW) delivered by the power plant to the target transmission and distribution network N1. The electricity delivered to the target transmission and distribution network N1 refers to the effective electricity measured at the connection point between the power plant and the target transmission and distribution network N1.

[0085] Here, as Figure 1 As shown, consider two power generation operators, GA and GB. Power generation operator GA manages (or operates) power plant a, which performs supply and demand adjustments using equation (1) (no speed regulation operation). Power generation operator GB manages (or operates) power plant b, which performs supply and demand adjustments based on no speed regulation operation. Power plants a and b are located in a region with a reference frequency of "60Hz" and are close to each other, and the frequency of the power system is always equal. In addition, the rated output of both is set to 100kW.

[0086] Figure 5 This is the first figure used to illustrate the function of the settlement device according to the first embodiment of this disclosure.

[0087] Figure 6 This is Figure 2, which illustrates the function of the settlement device according to the first embodiment of this disclosure.

[0088] Figure 5 (a) represents the time history of the frequency measurement value f (Hz) of the power transmission and distribution network N1 that connects the power sources of power plants a and b. Figure 5 (b) is the effective power P delivered by power plant a to the target transmission and distribution network N1. a (c) is the time history of (kW), and (d) is the effective power P sent by power plant b to the target transmission and distribution network N1. b (kW) time history.

[0089] also, Figure 6 Characterization Figure 5The time history of the frequency measurement value f shown, and the effective power measurement values ​​P (Pa) of power plant a and power plant b are shown. a P b Adjusting the power ΔP GF (ΔP) GFa ΔP GFb Adjusting the electric power ΔW GF (ΔW) GFa ΔW GFb (The timeline of)

[0090] like Figure 5 as well as Figure 6 As shown, power plants a and b operate at their rated output ("100kW") at time t0. At time t1, the frequency increases by "2.4Hz", from "60Hz" to "62.4Hz". At this time, the effective power Pa delivered by power plant a decreases to "0kW" according to equation (1). On the other hand, the effective power Pb delivered by power plant b remains unchanged at "100kW". Afterward, the frequency alternates between "60Hz" and "62.4Hz" at the times shown in the figure. At this time, the power (supply to the target transmission and distribution network N1) from time t0 to time t6 is "100kW × ((t1-t0) + (t3-t2) + (t6-t5)) / (t6-t0)" for power plant a. If the intervals of time t0, t1, t2, ..., t6 are equal, the power of power plant a is "50kW × (t6-t0)". On the other hand, power plant b has a power output of "100kW × (t6-t0)", which is twice that of power plant a. Therefore, if supply and demand adjustments are made, power plant a will not receive the compensation it would have received for the power output (supply) it would have received from the transmission and distribution network N1. Conversely, power plant b, which continues to operate at full output regardless of supply and demand adjustments, receives the maximum compensation. This is clearly unreasonable.

[0091] To eliminate this inconsistency, the settlement device 50 of this embodiment measures the regulating power produced by power plant a in kW. Since the unit is electricity (kW), the "regulating power" will henceforth also be recorded as "regulating electricity". The settlement device 50 of this embodiment accumulates the measured regulating electricity over time and settles it as power (kWh). Power (kWh) is currently the most common unit for buying and selling electricity; therefore, integrating it into the existing power (kWh) buying and selling system is more cost-effective than establishing a new system for regulating electricity.

[0092] Explain the specific processing flow of the settlement device 50. For example... Figure 4As shown, firstly, the measurement acquisition unit 5001 acquires the effective power measurement value P and the frequency measurement value f at the connection point from the measuring instrument 505 at each time interval (t0, t1, ...) (S100). In addition, the power acquisition unit 5002 acquires the power W at the connection point from the power meter 506 (S101).

[0093] Next, the power metering unit 5003 measures the adjusted power (kW) at each moment based on the obtained effective power measurement value P and frequency measurement value f (S102). Specifically, if the frequency measurement value f at the connection point decreases over time, and the effective power measurement value P sent from the connection point to the target transmission and distribution network N1 increases over time, the power metering unit 5003 counts positive adjusted power. Conversely, if the effective power measurement value P decreases over time when the frequency measurement value f decreases over time, the power metering unit 5003 counts negative adjusted power. If these are summarized, the adjusted power at time t is recorded as ΔP. GF (t), then it is calculated according to formula (2).

[0094] [Mathematical Expression 2]

[0095]

[0096] Here, “ΔT” is the sampling interval (h) of the measurement. “sgn(x)” is the sign function, which has a value of “1” when the input x is “positive”, a value of “-1” when the input x is “negative”, and a value of “0” when the input x is “0”. The metering of the adjusted power (kW) is not limited to equation (2). For example, it can also be the following equations (2A) to (2C).

[0097] [Mathematical Expression 2A]

[0098]

[0099] [Mathematical Expression 2B]

[0100]

[0101] [Mathematical Expression 2C]

[0102]

[0103] In equation (2C), "Cоv" represents covariance and "Var" represents variance.

[0104] Next, the power adjustment calculation unit 5004 calculates the level of adjusted power produced by power plant a within a given period (S103). The result of accumulating the adjusted power (kW) over time is called the adjusted power W. GF(kWh). If the accumulation is performed over a fixed time scale ΔT, then the electrical force W is adjusted. GF (t) is represented by equation (3).

[0105] [Mathematical Expression 3]

[0106]

[0107] If applicable Figure 6 Then, the power adjustment ΔP of power plant a during the period from time t0 to time t6 is... GFa It becomes "600kWh". On the other hand, the power adjustment ΔP of power plant b during the same period. GFb It becomes "0 kWh". That is, the adjusted power of power plant a is converted into electrical energy (adjusted electrical energy W). GFa ).

[0108] Next, the addition unit 5005 will calculate the adjustment force W for a given period (e.g., ΔT) by the adjustment force calculation unit 5004. GF (t) is added to the electrical power W(t) acquired by the electrical power acquisition unit 5002 during the same period to serve as the settlement electrical power W. bill (t)(S104).

[0109] Settlement Department 5006 based on settlement of electricity power W bill (t) is used to settle the consideration for power plant a (S105). Thus, based on the adjustment of the electric power W... GF The settlement power W of (t) bill (t) Settlements are made, and power plant a, which produces adjusted electricity, can obtain a price corresponding to the electricity output W(t) and the adjusted electricity output W based on the electricity quantity mechanism. GFa The corresponding consideration is given to both parties. Furthermore, the settlement result from the settlement unit 5006 is displayed on the display device 503 and can be confirmed by the power generation operator GA managing power plant a. In addition, the settlement result is sent to the server 10 of the system user T via the communication interface 502. The system user T makes payment to each power generation operator GA based on the settlement result. Furthermore, the settlement device 50 located at the connection point between power plant b and the target transmission and distribution network N1 also settles the consideration for power plant b by performing the same processing as described above.

[0110] (Effects)

[0111] As described above, the settlement method in this embodiment (which also includes a settlement device 50 or a settlement system 1 equipped with a settlement device 50, hereinafter the same) measures the adjustment power ΔP of the adjustment power supply unit (e.g., the power supply 21 of power plant a) based on the effective power measurement value P of the contact and the frequency measurement value f. GF Based on adjusting the power ΔPGF The electric power W is adjusted cumulatively over time. GF The sum of W and the electrical force W supplied by the force adjustment unit bill The settlement adjustment unit provides the consideration received by the unit.

[0112] In this way, the settlement device 50 can adjust the power supply unit's power supply and the corresponding price for the power supply and demand adjustment.

[0113] Furthermore, this supply and demand adjustment is autonomous; even if it is set as a spontaneous scheme that does not depend on the instructions of the system user T, the consideration can still be obtained according to the settlement method involved in this embodiment. Moreover, since this consideration is carried out through an existing electricity settlement system, there is no need for the cost of building a new system, and therefore no need for the cost of maintaining it, thus providing great benefits to society as a whole.

[0114] Furthermore, this embodiment uses the example of power generation operator G generating adjustment force through speed-regulating operation, but it is not limited to this. In other embodiments, the settlement device 50 can also settle the consideration between the power used by power user C and the adjustment force generated by power user C through demand adjustment. In addition, in other embodiments, the settlement device 50 can also settle the consideration between the power supplied and received through a contract with the external transmission and distribution network N2 managed (or used) by other system operators T and the adjustment force provided by the external transmission and distribution network N2.

[0115] In this way, consideration is generated in the supply and demand adjustments made autonomously by power generation operators G, electricity users C, or other system users T, which incentivizes these adjustments and enhances the overall supply and demand adjustment capabilities of the power system. This also allows for the large-scale adoption of renewable energy sources such as solar power, bringing societal benefits in areas such as global warming countermeasures.

[0116] <Second Implementation Method>

[0117] Next, refer to Figure 7 The settlement system 1 according to the second embodiment of this disclosure will be described below.

[0118] The same reference numerals are used for components common to the first embodiment, and detailed descriptions are omitted.

[0119] (Functional structure of the settlement device)

[0120] Figure 7 This is a block diagram illustrating the functional structure of the settlement device according to the second embodiment of this disclosure.

[0121] The following is for reference Figure 7The functional structure of the settlement device 50 involved in this embodiment will be explained in detail.

[0122] like Figure 7 As shown, the CPU 500 of the settlement device 50 according to this embodiment operates according to the program, further performing the function of the adjustment unit 5007.

[0123] Adjustment Department 5007 will adjust the price adjustment coefficient k of the electricity price. GF And the adjusted electricity ΔP measured by the Adjusted Electricity Metering Department 5003 GF Multiplication. In this embodiment, a price adjustment coefficient k, which varies depending on the date and time, is preset. GF The value of the corresponding table is stored in the coefficient storage unit (memory 504). The adjustment unit 5007 retrieves the price adjustment coefficient k corresponding to the current date and time from the corresponding table in the coefficient storage unit. GF and adjusting power ΔP GF Multiply.

[0124] Furthermore, the power adjustment calculation unit 5004 involved in this embodiment will adjust the power ΔP GF Multiply by the price adjustment factor k GF The obtained values ​​are accumulated to calculate the adjustment power.

[0125] (Processing flow of the settlement device)

[0126] The following is for reference Figure 7 The processing flow of the settlement device 50 involved in this embodiment (the settlement method using the settlement device 50) will be explained in detail.

[0127] In this embodiment, the processes S200, S201, and S202 in the measurement value acquisition unit 5001, the power acquisition unit 5002, and the power metering adjustment unit 5003 are the same as the processes S100, S101, and S102 in the first embodiment. Figure 4 )same.

[0128] Next, the adjustment unit 5007 retrieves the price adjustment coefficient k corresponding to the current moment from the coefficient storage unit. GF (S203) and the adjusted power ΔP measured by the adjusted power metering unit 5003. GF Multiplication (S204). The power adjustment calculation unit 5004 adjusts the power ΔP. GF and price adjustment coefficient k GF The values ​​of the multiplication are accumulated to calculate the adjustment force W. GF (S205).

[0129] For example, it is known that electricity consumption decreases at 12:00 on weekdays and recovers at 13:00. That is, the fluctuation of electricity supply and demand is large during this period. During such a period, if the unit price of the adjusted electricity is set particularly high in advance, it will incentivize the output of adjustment force and suppress the frequency fluctuation of the target transmission and distribution network N1.

[0130] Specifically, between 12:00 and 13:00, the price of the adjusting force is set to 1.1 times the normal price, etc., to change the price according to the demand for adjusting force. In this embodiment, this is achieved by adjusting the power ΔP. GF Multiply by the price adjustment factor k GF This is used to apply a weighted average based on the date and time. Price adjustment coefficient k GF For example, values ​​can be predetermined based on calendars and timers, and then looked up in a table. This is done using a price adjustment factor k. GF The electric force is adjusted and calculated in this way.

[0131] [Mathematical Expression 4]

[0132]

[0133] The subsequent processing steps S206 and S207 of the addition unit 5005 and the settlement unit 5006 are the same as the processing steps S104 and S105 of the first embodiment. Figure 4 )same.

[0134] (Effects)

[0135] As described above, the settlement method involved in this embodiment will measure the adjusted electricity ΔP. GF Multiply by the price adjustment factor k GF The obtained values ​​are accumulated to calculate the adjusted electric force W. GF In addition, the price adjustment coefficient k GF Preset values ​​that correspond to different dates and times.

[0136] In this way, the price for adjusting the amount of electricity can be adjusted in accordance with changes in electricity supply and demand. Furthermore, when electricity supply and demand change according to a date and time, the price for adjusting the amount of electricity can be adjusted to match these changes. For example, by increasing the price for adjusting the amount of electricity during periods requiring more adjustment capacity, the incentive to produce adjustment capacity can be provided, thus suppressing frequency variations in the target transmission and distribution network N1.

[0137] <Third Implementation Method>

[0138] Next, refer to Figures 8-9 The settlement system 1 according to the third embodiment of this disclosure will be described below.

[0139] The same reference numerals are used for components common to the first and second embodiments, and detailed descriptions are omitted.

[0140] (Server hardware structure)

[0141] Figure 8 This is a block diagram illustrating the hardware structure of the server according to the third embodiment of this disclosure.

[0142] like Figure 8 As shown, server 10 includes CPU 100, memory 101, communication interface 102 and storage 103.

[0143] CPU100 is the processor that manages the overall operation of server 10.

[0144] The memory 101 is the so-called main storage device, which will be used by the CPU 100 to perform operations based on programs, as well as to expand the commands and data.

[0145] The communication interface 102 is an interface device used to exchange information with external devices (particularly the settlement device 50). Furthermore, in this embodiment, the communication unit and communication method implemented by the communication interface 102 are not particularly limited. For example, the communication interface 102 can be a wired connection interface for wired communication or a wireless communication module for wireless communication.

[0146] Storage 103 is a so-called auxiliary storage device, such as HDD (Hard Disk Drive), SSD (Solid State Drive), etc.

[0147] (Functional structure of server and settlement device)

[0148] Figure 9 This is a block diagram illustrating the functional structure of the server and settlement device according to the third embodiment of this disclosure.

[0149] The following is for reference. Figure 9 The functional structure of the server 10 and the settlement device 50 involved in this embodiment will be explained in detail.

[0150] In the settlement device 50 according to this embodiment, the adjustment unit 5007 obtains (receives) the price adjustment coefficient k from the server 10. GF Instead of from the coefficient storage unit (memory 504), it differs from the second embodiment in this respect. Regarding other functional units, it is the same as the second embodiment.

[0151] The CPU 100 of server 10 functions as a coefficient determination unit 1001 by performing actions according to a program. The coefficient determination unit 1001 determines the corresponding price adjustment coefficient k for each region based on the electricity supply and demand of that region. GF The price adjustment coefficient k is determined by the coefficient determination department 1001. GF It is sent to the settlement device 50 via the communication line.

[0152] (Processing flow of the settlement device)

[0153] The following is for reference. Figure 7 The processing flow of the settlement device 50 involved in this embodiment (the settlement method using the settlement device 50) will be explained in detail.

[0154] In this embodiment, the processes S300, S301, and S302 in the measurement value acquisition unit 5001, the power acquisition unit 5002, and the power metering adjustment unit 5003 are the same as the processes S200, S201, and S202 in the second embodiment. Figure 7 )same.

[0155] In the second embodiment, the change in electricity demand based on time period is described. Besides time, electricity supply and demand fluctuations also vary based on geographical location. Due to capacity constraints in the target transmission and distribution network N1, if there is an imbalance between electricity supply and demand in a certain region, it is desirable to adjust this imbalance within that region or its vicinity. For this purpose, a price adjustment coefficient k can be set for each region. GF This is more suitable. This is because the price adjustment coefficient k is only used in regions with significant supply-demand imbalances. GF Setting it too high will incentivize adjustments to power output, which helps eliminate imbalances.

[0156] Therefore, in the server 10 of this embodiment, the coefficient determination unit 1001 determines the price adjustment coefficient k for each region. GF (Step S303). Specifically, the coefficient determination unit 1001 obtains and monitors the frequency measurement values ​​f of each connection point via the communication line. For example, the coefficient determination unit 1001 determines the price adjustment coefficient k. GF This is to ensure that the larger the variance of the frequency measurement value f, the higher the price adjustment factor k. GF The data is transmitted to the settlement device 50 via the communication line. The coefficient determination unit 1001 pre-determines the price adjustment coefficient k corresponding to the variance. GF The value of k is automatically determined and sent as a price adjustment factor. GF Furthermore, the coefficient determination unit 1001 can also accept input from the administrator to determine and send the price adjustment coefficient k. GF .

[0157] Next, the adjustment department 5007 receives the price adjustment coefficient k from the server 10 of the system user T. GF (S304), and adjust the power ΔP GF Multiplication (S305). The power adjustment calculation unit 5004 adjusts the power ΔP. GF and price adjustment coefficient k GF The values ​​obtained by multiplying are accumulated to calculate the adjustment power W. GF (S306).

[0158] The subsequent processing steps S307 and S308 of the addition unit 5005 and the settlement unit 5006 are similar to the processing steps S206 and S207 of the second embodiment. Figure 7 )same.

[0159] (Effects)

[0160] As described above, the settlement method involved in this embodiment will measure the adjusted electricity ΔP. GF Multiply by the price adjustment factor k obtained from server 10 of system user T. GF The obtained values ​​are accumulated to calculate the adjusted electric force W. GF .

[0161] In this way, the system user T can adjust the motivation for adjusting electricity based on the price adjustment coefficient corresponding to changes in supply and demand.

[0162] In addition, the price adjustment coefficient k corresponding to the electricity supply and demand changes in each region is used. GF This can adjust the supply and demand balance in each region. For example, by adjusting the price adjustment coefficient k in regions with large supply and demand imbalances. GF Setting it to a large value provides an incentive to adjust electricity output, which can contribute to the elimination of imbalances.

[0163] <Fourth Implementation>

[0164] Next, refer to Figures 10-12 The settlement system 1 according to the fourth embodiment of this disclosure will be described below.

[0165] The same reference numerals are used for components common to embodiments 1 to 3, and detailed descriptions are omitted.

[0166] (Functional structure of the settlement device)

[0167] Figure 10 This is a block diagram illustrating the functional structure of the settlement device according to the fourth embodiment of this disclosure.

[0168] The following is for reference. Figure 10The functional structure of the settlement device 50 according to this embodiment will be described in detail. Here, the settlement device 50 installed at the connection point with power plant a will be used as an example for explanation.

[0169] like Figure 10 As shown, the CPU 500 of the settlement device 50 in this embodiment further performs its function as the evaluation unit 5008 by operating according to the program.

[0170] Evaluation Department 5008 evaluates the stability of the adjustment force of the adjustment force providing unit.

[0171] Furthermore, in this embodiment, the adjustment unit 5007 changes the price adjustment coefficient k based on the evaluation result of the evaluation unit 5008. GF .

[0172] (Processing flow of the settlement device)

[0173] Figure 11 This is a block diagram illustrating the functional structure of the evaluation unit according to the fourth embodiment of this disclosure.

[0174] The following is for reference. Figures 10-11 The processing flow of the settlement device 50 involved in this embodiment (the settlement method using the settlement device 50) will be explained in detail.

[0175] In embodiments 1 to 3, a method is described in which each power plant autonomously supplies, measures, and settles its electricity supply. This is based on the commodity nature of electricity. As is often said, electricity is difficult to store. Instantaneous adjustment forces, such as those for speed regulation, are inherently strong. Therefore, it is important to have a sufficient reserve of adjustment power. For example, suppose a large solar power plant experiences a sharp decrease in power generation due to the influence of cumulonimbus clouds. The resulting supply shortage is compensated by direct adjustment power supply from other power plants. This must be done instantaneously, within one second or less, and in practice, it is done just that. After one minute, it is too late and ineffective.

[0176] Since reserve adjustment capacity is a potential entity that is not normally used, its exact value cannot be known. Therefore, it can only be estimated. For example, a valid estimate is the stability of the output of adjustment power. It is not difficult to score the stability of reserve capacity output on a daily, hourly, minutely, and secondly basis using statistical measures such as mean and variance. Furthermore, if recommendations are made corresponding to stability, it will give power plants an incentive to produce adjustment capacity stably, and as a result, the reserve adjustment power will become substantial. This embodiment establishes the technical foundation as follows.

[0177] First, such as Figure 10As shown, the measurement acquisition unit 5001 acquires the frequency measurement value f and the effective power measurement value P at the connection point with power plant a from the measuring instrument 505 (S400). In addition, the power acquisition unit 5002 acquires the power W received at the connection point with power plant a from the power meter 506 (S401).

[0178] The power metering unit 5003 adjusts the power ΔP at each moment using formula (1). GF (S402).

[0179] Next, the evaluation department 5008 will adjust the power ΔP. GF To evaluate the stability of power plant a (S403). Specifically, such as... Figure 11 As shown, the evaluation unit 5008 adjusts the power ΔP at each time point. GF The variance V of the time series data is calculated as shown in equation (5). PGF (S403A). E represents the expected value.

[0180] [Mathematical Expression 5]

[0181]

[0182] Similarly, the evaluation department 5008 calculates the adjusting electric force W for evaluating the long-period component of the adjusting force. GF (S403B), calculate the variance of its daily, hourly, minutely, and secondly increments (S403C). For example, if it is the variance per minute, then calculate the minute increment ΔW using equation (6). GF60 The variance V is obtained in equation (7). PGF60 .

[0183] [Mathematical Expression 6]

[0184]

[0185] [Mathematical Expression 7]

[0186]

[0187] Next, the evaluation department 5008 based on V PGF V WGF60 The stability of the regulating force output of power plant a (power source 21) is scored (S403D). For example, the evaluation department 5008 bases its score on equation (5) ( Figure 11 The variance V calculated from S403A) PGF To evaluate the speed of response of power plant a. Furthermore, the evaluation unit 5008 can base its evaluation on equations (6) to (7). Figure 11 The variance V calculated in S403C) WGF60 To evaluate whether power plant A consistently exerts its adjustment capabilities.

[0188] Next, return to Figure 10 The adjustment unit 5007 changes the price adjustment coefficient k based on the stability evaluation results of the evaluation unit 5008. GF (S404). For example, the stronger the stability of power plant a (the more consistently it exerts its adjusting power compared to other power plants b, etc.), the more the adjustment department 5007 will adjust the price adjustment coefficient k. GF The higher the value, the better. For example, it can also be set as shown in equation (8), along with the variance V. WGF60 The price adjustment factor decreases proportionally to the square root of the standard deviation. β is the adjustment factor.

[0189] [Mathematical Expression 8]

[0190]

[0191] In addition, the adjustment unit 5007 adjusts the adjustment power ΔP measured by the power metering unit 5003. GF Multiply by the price adjustment factor k GF (S405).

[0192] The subsequent processing steps S406, S407, and S408 of the power calculation unit 5004, the addition unit 5005, and the settlement unit 5006 are similar to the processing steps S205, S206, and S207 of the second embodiment. Figure 7 )same.

[0193] (Modified example)

[0194] Figure 12 This is a block diagram illustrating the functional structure of the settlement device and server involved in a variation of the fourth embodiment of this disclosure.

[0195] In the fourth embodiment, a method for evaluating the stability of the settlement device 50 (having an evaluation unit 5008) has been described, but it is not limited to this. Other variations may also be used (as in this modified example). Figure 12 That is how the system user T's server 10 evaluates stability. The following is a reference. Figure 12 To explain the differences from the fourth embodiment. Furthermore, here we will describe the case where server 10 evaluates the stability of power plant a, but server 10 also evaluates other power plants in the same way.

[0196] like Figure 12 As shown, the CPU 500 of the settlement device 50 replaces the evaluation unit 5008 and has a transmission unit 5009. The transmission unit 5009 adjusts the adjusted power ΔP of power plant a measured by the power metering unit 5003. GF It is sent to server 10 (S410) via the communication line.

[0197] In addition, the CPU 100 of server 10 also has a receiving unit 1002 and an evaluation unit 1003. The receiving unit 1002 receives the adjusted power ΔP from the settlement device 50 of power plant a via a communication line. GF (S411).

[0198] Next, the evaluation unit 1003 of server 10 and the evaluation unit 5008 of settlement device 50 ( Figure 11 Similarly, the adjustment power ΔP for power plant a at each time point... GF The variance V of the time series data is calculated as shown in equation (5). PGF (S403A).

[0199] Furthermore, the evaluation unit 1003 of the server 10 and the evaluation unit 5008 of the settlement device 50 ( Figure 11 Similarly, calculate the adjusting power W of power plant a. GF (S403B), for example, the increment ΔW per minute can be calculated using equation (6). GF60 The variance V is obtained in equation (7). PGF60 (S403C).

[0200] The evaluation unit 1003 of server 10 and the evaluation unit 5008 of settlement device 50 ( Figure 11 Similarly, based on V PGF V WGF60 The stability of the adjustment output of power plant a is then scored (S403D).

[0201] Next, the coefficient determination unit 1001 of server 10 determines the price adjustment coefficient k of power plant a based on the evaluation results of evaluation unit 1003. GF (S413). The processing and settlement of the adjustment unit 5007 of the processing and settlement device 50 ( Figure 10 The same applies to S404.

[0202] The coefficient determination unit 1001 of server 10 will adjust the price of power plant a by coefficient k. GF The data is transmitted via a communication line to the settlement device 50 at power plant a. If the settlement device 50 receives the price adjustment factor k... GF (S414) The adjusted electricity PGF measured by the Adjusted Electricity Metering Department 5003 will be multiplied by the received price adjustment factor k. GF The obtained value is output to the adjustment power calculation unit 5004 (S415). Subsequent processing is the same as in the fourth embodiment.

[0203] (Effects)

[0204] As described above, the settlement method involved in this embodiment is characterized by adjusting the electricity ΔP.GF With adjusting the electric force W GF The increment is used to score the stability.

[0205] In this way, a higher incentive can be given to adjustment force providing units with high stability than to those with low stability. For example, a higher incentive can be given to adjustment force providing units that provide adjustment force rapidly or consistently than to other adjustment force providing units. As a result, the frequency stability in the target transmission and distribution network N1 can be further improved.

[0206] <Fifth Implementation>

[0207] Next, refer to Figures 13-15 The settlement system 1 according to the fifth embodiment of this disclosure will be described below.

[0208] The same reference numerals are used for components common to embodiments 1 through 4, and detailed descriptions are omitted.

[0209] (Functional structure of the settlement device)

[0210] Figure 13 This is a block diagram illustrating the functional structure of the settlement device according to the fifth embodiment of this disclosure.

[0211] The following is for reference. Figure 13 The functional structure of the settlement device 50 according to this embodiment will be described in detail. Here, the settlement device 50 installed at the connection point with power plant a will be used as an example for explanation.

[0212] like Figure 13 As shown, the CPU 500 of the settlement device 50 in this embodiment performs its function as the mediation rate estimation unit 5010 by operating according to the program.

[0213] The shutdown rate estimation unit 5010 estimates the shutdown rate ^δ of the regulating force supply unit based on the effective power measurement value P and the frequency measurement value f. Furthermore, the notation "^δ" in the instruction manual corresponds to the notation "^" in the "δ" notation in the figures and formulas shown below.

[0214] (Processing flow of the settlement device)

[0215] Figure 14 This is a block diagram illustrating the functional structure of the evaluation unit according to the fifth embodiment of this disclosure.

[0216] The following is for reference. Figures 13-14 The processing flow of the settlement device 50 involved in this embodiment (the settlement method using the settlement device 50) will be explained in detail.

[0217] Adjusting power ΔPGF The magnitude of this adjustment depends on the magnitude of supply and demand fluctuations. Even if the same power plants operate identically, during periods of high supply and demand fluctuations in the target transmission and distribution network N1, the power adjustment ΔP will be crucial. GF Output also increases; conversely, during periods of low supply and demand fluctuations, adjusting electricity ΔP... GF The output also decreases. Thus, it can be said that adjusting the electrical power W... GF The presence of deviations in the values ​​does not necessarily indicate a lack of stability. A strategy is to select a timeframe where supply and demand fluctuations are of similar magnitude. However, by focusing on a specific timeframe, the strategy loses its generalizability.

[0218] This implementation uses the correlation function between frequency f and effective power P as an indicator, which reduces the dependence on supply and demand fluctuations and provides a more rigorous evaluation of stability.

[0219] Specifically, such as Figure 13 As shown, the measurement acquisition unit 5001 acquires the frequency measurement value f and the effective power measurement value P at the connection point with power plant a from the measuring instrument 505 (S500). Furthermore, the power acquisition unit 5002 acquires the power W received at the connection point with power plant a from the power meter 506 (S501). The adjustment power metering unit 5003 measures the adjustment power ΔP of power plant a at each time based on the acquired frequency measurement value f and effective power measurement value P. GF (S502).

[0220] Next, the outage rate estimation unit 5010 estimates the outage rate of power plant a using equation (9) (S503). Equation (9) is derived from equation (1) and is performed using the same calculation as the least squares method to estimate the outage rate δ based on the time series data of effective power P and the time series data of frequency f. “Cov” represents the correlation function and “Var” represents the variance.

[0221] [Mathematical Expression 9]

[0222]

[0223] Furthermore, the evaluation unit 5008 evaluates the stability of power plant a based on the estimated shutdown rate value ^δ estimated by the shutdown rate estimation unit 5010 (S504). Specifically, as... Figure 14 As shown, the evaluation unit 5008 calculates the variance of the time series value of the estimated regulation rate δ (S504A).

[0224] Next, the evaluation unit 5008 scores the stability of the regulating power output of power plant a based on the variance of the estimated regulating rate ^δ (S504B). For example, the more stable the estimated regulating rate ^δ (the smaller the variance), the higher the stability score will be given by the evaluation unit 5008.

[0225] Next, return to Figure 13 The adjustment unit 5007 changes the price adjustment coefficient k based on the stability evaluation results of the evaluation unit 5008. GF (S505).

[0226] In addition, the adjustment unit 5007 adjusts the adjustment power ΔP measured by the power metering unit 5003. GF Multiply by the changed price adjustment factor kGF (S506).

[0227] The subsequent processing steps S507, S508, and S509 of the power calculation unit 5004, addition unit 5005, and settlement unit 5006 are similar to the processing steps S205, S206, and S207 of the second embodiment. Figure 7 )same.

[0228] (Modified example)

[0229] Figure 15 This is a block diagram illustrating the functional structure of the settlement device and server involved in a variation of the fifth embodiment of this disclosure.

[0230] In the fifth embodiment, a method for evaluating the stability of the settlement device 50 (having an evaluation unit 5008) has been described, but it is not limited to this. Other variations may also be used (as in this modified example). Figure 15 That is how the system user T's server 10 evaluates stability. See below for reference. Figure 15 The differences from the fifth embodiment will be explained here. Furthermore, while the server 10 evaluates the stability of power plant a, the server 10 also evaluates other power plants in the same way.

[0231] like Figure 15 As shown, the CPU 500 of the settlement device 50 replaces the evaluation unit 5008 and has a transmission unit 5009. The transmission unit 5009 transmits the estimated value of the regulation rate of power plant a, ^δ, estimated by the regulation rate estimation unit 5010 to the server 10 via the communication line (S510).

[0232] In addition, the CPU 100 of server 10 also has a receiving unit 1002 and an evaluation unit 1003. The receiving unit 1002 receives the estimated dispatch rate value ^δ of power plant a via a communication line (S511).

[0233] Next, the evaluation unit 1003 of server 10 and the evaluation unit 5008 of settlement device 50 ( Figure 14 Similarly, calculate the variance of the time series value of the estimated outage rate δ of power plant a (S504A).

[0234] Furthermore, the evaluation unit 1003 of the server 10 and the evaluation unit 5008 of the settlement device 50 ( Figure 14Similarly, the stability of the regulating capacity output of power plant a is scored based on the variance of the estimated regulating rate δ (S504B).

[0235] Next, the coefficient determination unit 1001 of server 10 determines the price adjustment coefficient k of power plant a based on the evaluation results of evaluation unit 1003. GF (S513). The processing and settlement of the adjustment unit 5007 of the processing and settlement device 50 ( Figure 13 The same applies to S505.

[0236] The coefficient determination unit 1001 of server 10 will adjust the price of power plant a by coefficient k. GF The data is transmitted via a communication line to the settlement device 50 at power plant a. If the settlement device 50 receives the price adjustment factor k... GF (S514) The adjusted electricity PGF measured by the adjusted electricity metering department 5003 will be multiplied by the received price adjustment factor k. GF The obtained value is output to the adjustment power calculation unit 5004 (S515). Subsequent processing is the same as in the fifth embodiment.

[0237] (Effects)

[0238] As described above, the settlement method involved in this embodiment is characterized by scoring the stability based on the estimated value ^δ of the mediation rate.

[0239] In this way, the stability of each adjustment force providing unit can be evaluated more rigorously, regardless of the magnitude of supply and demand changes.

[0240] <Sixth Implementation>

[0241] Next, refer to Figure 16 The settlement system 1 according to the sixth embodiment of this disclosure will be described below.

[0242] The same reference numerals are used for components common to embodiments 1 through 5, and detailed descriptions are omitted.

[0243] (Functional structure of the settlement device)

[0244] Figure 16 This is a block diagram illustrating the functional structure of the settlement device according to the sixth embodiment of this disclosure.

[0245] In the second embodiment ( Figure 7 The document describes a settlement device 50 that includes one power metering unit 5003 and one power calculation unit 5004. In contrast, the settlement device 50 of this embodiment is as follows: Figure 16As shown, it has multiple pairs a, b, ... composed of an adjustable power metering unit 5003 and an adjustable power calculation unit 5004. Furthermore, the settlement device 50 has multiple adjustment units 5007a, 5007b, ... corresponding to each pair a, b, ... . Moreover, the settlement device 50 has a frequency band division unit 5011.

[0246] exist Figure 16 The diagram shows an example of a settlement device 50 having two pairs: pair a, consisting of an adjusting power metering unit 5003a and an adjusting power calculation unit 5004a, and pair b, consisting of an adjusting power metering unit 5003b and an adjusting power calculation unit 5004b. In this embodiment, the characteristic is that the values ​​of the fast-response component (first component) and the slow-response component (second component) contained in the adjusted power are different. This difference in value is represented by a price adjustment coefficient k. GF Performance. The settlement device 50 calculates the adjustment electric force W of the fast response component (first component) in pair a. GFu The adjustment electric force W for the slow response component (second component) is calculated in b. GFv Alternatively, in other embodiments, the frequency band segmentation unit 5011 may be distributed throughout the power adjustment metering unit. In this case, for example, the power adjustment metering unit 5003a has a frequency band segmentation unit 5011 that extracts a component of the high-frequency band (the first component) and calculates the adjustment power W of the extracted first component. GFu Furthermore, the power metering unit 5003b has a frequency band segmentation unit 5011 that extracts the low-frequency component (the second component) and calculates the adjustment power W of the extracted second component. GFv .

[0247] (Processing flow of the settlement device)

[0248] The following is for reference. Figure 16 The processing flow of the settlement device 50 involved in this embodiment (the settlement method using the settlement device 50) will be explained in detail.

[0249] Furthermore, the processing S600 of the measurement value acquisition unit 5001 and the processing S601 in the electric power acquisition unit 5002 are similar to the processing S200 and S201 in the second embodiment. Figure 7 )same.

[0250] The frequency band division unit 5011 divides the effective power measurement value P into fast components P u and the slow component P v Similarly, the frequency band segmentation unit 5011 also divides the frequency measurement value f into fast components f. u and the slow component f v(Step S602). Further details regarding the processing of the frequency band segmentation unit 5011 will be described later.

[0251] Then, the fast component P of the effective power measurement value is... u The fast component f of the frequency measurement value u The input to the power metering unit 5003a for adjustment of power a is used to calculate the fast component ΔP of the adjusted power. GFu (First adjustment of power) (Step 603a). Similarly, the slow component P of the effective power measurement value is... v The slow component f of the frequency measurement value v The input to the power metering unit 5003b for adjusting power b is used to calculate the slow component ΔP of the adjusted power. GFv (Second adjustment of power) (Step 603b).

[0252] Next, the adjustment unit 5007a retrieves the price adjustment coefficient k, which represents the value of the fast component corresponding to the current moment, from the coefficient storage unit. GFu (First price adjustment coefficient) (Step S604a). Similarly, the adjustment unit 5007b retrieves the price adjustment coefficient k, which represents the value of the slow component corresponding to the current time, from the coefficient storage unit. GFv (Second price adjustment factor) (Step S604b).

[0253] The adjustment power ΔP corresponding to the fast component GFu Multiply by the price adjustment factor k GFu After adjusting for the difference in value (step S605a), it is accumulated in the adjustment power calculation unit 5004a, becoming the adjustment power W corresponding to the fast component. GFu (First adjustment power) (Step S606a). Similarly, the adjustment power ΔP corresponding to the slow component. GFv Multiply by the price adjustment factor k GFv After adjusting for the difference in value (step S605b), it is accumulated in the adjustment power calculation unit 5004b and becomes the adjustment power W corresponding to the slow component. GFv (Second adjustment of electrical force) (Step S606a).

[0254] Furthermore, the adjusting electric force W calculated for a and b respectively GFu W GFv The sum of these becomes the adjustment of electrical power W GF (Step S607). The subsequent processing of the addition unit 5005 (S608), the settlement unit 5006 (S609), and the processing of the second embodiment (S206, S207) are all related. Figure 7 )same.

[0255] (Regarding the processing of frequency band segmentation)

[0256] This embodiment is characterized in that the difference in value between the fast and slow components is reflected in the adjustment of the electrical force W. GF In order to divide the data into components for calculation, this embodiment includes a frequency band segmentation unit 5011. Here, the processing S602 of the frequency band segmentation unit 5011 will be described in detail.

[0257] First, the frequency band division of the frequency measurement value f is explained. The frequency band division section 5011 is, for example, composed of a filter. Furthermore, for example, a filter that extracts the component with a time constant of 10 seconds or less as a fast component can be installed as a transfer function as shown in Equation (10). In Equation (10), s represents the Laplace operator.

[0258] [Mathematical Expression 10]

[0259]

[0260] Using this transfer function, the fast component f of the frequency measurement is calculated in equation (11). u .

[0261] [Mathematical Expression 11]

[0262]

[0263] Furthermore, if we take the slow component, for example, a component with a time constant of less than 300 seconds, then the filter's transfer function G... v It is determined to be as shown in equation (12).

[0264] [Mathematical Expression 12]

[0265]

[0266] Based on this transfer function and subtracting the slow component f from the frequency measurement f u "ff" u The slow component f of the frequency measurement is calculated using equation (13). v .

[0267] [Mathematical Expression 13]

[0268]

[0269] Furthermore, this embodiment describes an example where the frequency band segmentation unit 5011 divides the frequency band into two parts, but it is not limited to this. In other embodiments, the frequency band segmentation unit 5011 may also divide the frequency band into three or more parts. For example, if a segment with a time constant of 2700 seconds or less is selected as the third segment (third component), then the third transfer function G... w It is determined to be the following formula (14).

[0270] [Mathematical Expression 14]

[0271]

[0272] The frequency band segmentation unit 5011 uses the transfer function G shown in equation (14) w Furthermore, the slow component f is calculated using equation (15). c .

[0273] [Mathematical Expression 15]

[0274]

[0275] By repeating this process, the number of divisions can be increased as many times as desired. Furthermore, when the number of frequency band divisions is increased to three, the number of pairs of the adjusting power metering unit 5003 and the adjusting power calculation unit 5004 is increased to three, and the adjusting power W for each component is calculated. GF That's fine. The same applies when dividing into more than four parts.

[0276] Next, the band division of the effective power measurement value P performed in the band division unit 5011 will be explained. The filter used is the same as the filter used for the frequency measurement value division to perform band division on the effective power measurement value P. Each component of the band-divided effective power measurement value P is obtained in equation (16).

[0277] [Mathematical Expression 16]

[0278]

[0279] The power metering unit 5003a calculates the adjusted power ΔP for the frequency band division according to formula (2), formula (2B), or formula (2C). GFu In equation (2), equation (2B), or equation (2C), P is... u Substitute it into P, and f u Substitute the values ​​into f to perform the calculation. Adjustment power ΔP for frequency band segmentation. GFu ΔP GFw Same here.

[0280] Furthermore, in this embodiment, the structure of the second embodiment is described ( Figure 7 The example uses a structure having a frequency band division unit 5011 and multiple adjustable power metering units 5003, adjustable power calculation units 5004, and adjustment units 5007, but is not limited thereto. In other embodiments, the structure of the third embodiment ( Figure 9 The structure of the fourth embodiment ( Figure 10 , Figure 12 The structure of the fifth embodiment () Figure 13 , Figure 15 The structure of the frequency band segmentation unit 5011, etc., described above is used in the process.

[0281] (Effects)

[0282] As described above, the settlement method in this embodiment divides the effective power measurement value P and the frequency measurement value f into multiple components differentiated by frequency band. Furthermore, the adjusted power of each component is calculated by multiplying the adjusted power of each component by a value adjustment factor kGF, which is different for each component.

[0283] In this way, the adjustment force of the adjustment force supply unit can be calculated on a per-component basis. Consequently, a more appropriate price can be paid for the adjustment force of the adjustment force supply unit.

[0284] As described above, several embodiments of the present invention have been illustrated, but all of these embodiments are merely illustrative and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms and can be omitted, substituted, or modified in various ways without departing from the spirit of the invention. These embodiments and their variations are included in the scope and spirit of the invention, as well as in the scope of the invention described in the claims and its equivalents.

[0285] For example, in the embodiments described above, the power sources 21, 22, ... have been shown to generate electricity using a turbine device 211 and a generator, but are not limited thereto. In other embodiments, the power sources 21, 22, ... may be used to generate solar power using solar cells.

[0286] <Postscript>

[0287] The settlement device, settlement system, settlement method, and procedure described in the above embodiments are as follows.

[0288] According to a first aspect of this disclosure, the settlement device (50) comprises: a measurement value acquisition unit (5001) that acquires a measurement value of the effective power received at a connection point with an adjustment power providing unit capable of providing adjustment power to the power transmission and distribution network and a measurement value of the frequency at the connection point; an adjustment power metering unit (5003) that measures the adjustment power at the connection point based on the acquired measurement value of the effective power and the measurement value of the frequency; an adjustment power calculation unit (5004) that accumulates the adjustment power over time to calculate the adjustment power at the connection point for a given period; a power acquisition unit (5002) that acquires the power received at the connection point during the given period; and a settlement unit (5006) that calculates the adjustment power provided by the adjustment power providing unit and the consideration for the power received by the adjustment power providing unit based on the sum of the adjustment power and the power quantity.

[0289] In this way, the settlement device 50 can settle both the price corresponding to the power supplied by the power supply unit and the price corresponding to the power supply and demand adjustment.

[0290] According to the second aspect of this disclosure, the settlement device (50) involved in the first aspect further includes: an adjustment unit (5007) that multiplies the measured adjustment power by a price adjustment coefficient for adjusting the price of the adjustment power, and an adjustment power calculation unit (5004) that accumulates the value obtained by multiplying the adjustment power by the price adjustment coefficient to calculate the adjustment power.

[0291] In this way, the price of electricity can be adjusted in accordance with the supply and demand of electricity.

[0292] According to the third aspect of this disclosure, the settlement device (50) involved in the second aspect further includes: a coefficient storage unit (504) that stores a plurality of price adjustment coefficients with different values ​​corresponding to date and time, and the adjustment unit (5007) obtains the price adjustment coefficient corresponding to the given period from the coefficient storage unit (504).

[0293] In this way, when the electricity supply and demand change in accordance with the date and time, the price for adjusting the amount of electricity can change accordingly.

[0294] According to the fourth aspect of this disclosure, in the settlement device (50) involved in the second aspect, the adjustment unit (5007) obtains the price adjustment coefficient from the server (10) of the system operator managing the power transmission and distribution network.

[0295] In this way, the system user T can adjust the calculated electricity price based on the price adjustment coefficient corresponding to changes in supply and demand.

[0296] According to the fifth aspect of this disclosure, the settlement device (50) involved in the second aspect further includes: an evaluation unit (5008) that evaluates the stability of the adjustment force of the adjustment force providing unit, and the adjustment unit (5007) changes the price adjustment coefficient according to the evaluation result of the evaluation unit (5008).

[0297] In this way, a higher incentive can be given to adjustment force providing units with high stability than to adjustment force providing units with low stability. For example, a higher incentive can be given to adjustment force providing units that provide adjustment force rapidly than to other adjustment force providing units. As a result, the frequency stability in the target transmission and distribution network N1 can be further improved.

[0298] According to the sixth aspect of this disclosure, in the settlement device (50) involved in the fifth aspect, the evaluation unit (5008) evaluates the stationarity based on the variance of the increment of the adjustment power at each step calculated based on the time series data of the adjustment power.

[0299] According to the seventh aspect of this disclosure, in the settlement device (50) involved in the fifth or sixth aspect, the evaluation unit (5008) evaluates the stability based on the variance of the increment of the adjusted power quantity in each period calculated based on the time series data of the adjusted power quantity.

[0300] In this way, a higher motivation can be given to the adjustment force providing unit with high stability than to the adjustment force providing unit with low stability. For example, a higher motivation can be given to the adjustment force providing unit with constant adjustment force than to other adjustment force providing units. As a result, the frequency stability in the target transmission and distribution network N1 can be further improved.

[0301] According to the eighth aspect of this disclosure, the settlement device (50) involved in the fifth aspect further includes: a regulation rate estimation unit (5010) that estimates the regulation rate of the adjustment force providing unit based on the measured value of the effective power and the measured value of the frequency, and an evaluation unit (5008) that evaluates the stability based on the variance of the increment of the estimated value of the regulation rate calculated from time series data of the estimated value of the regulation rate.

[0302] In this way, the stability of each adjustment force providing unit can be evaluated more rigorously, regardless of the magnitude of supply and demand changes.

[0303] According to the ninth aspect of this disclosure, in the settlement device (50) involved in any of the second to eighth aspects, the adjusting power metering unit (5003) measures the first adjusting power of the first component and the second adjusting power of the second component by dividing the measured value of the effective power and the measured value of the frequency by frequency band. The adjusting unit (5007) multiplies the first adjusting power by a first price adjustment coefficient corresponding to the first component and multiplies the second adjusting power by a second price adjustment coefficient corresponding to the second component. The adjusting power calculation unit (5004) accumulates the value obtained by multiplying the first adjusting power and the first price adjustment coefficient to calculate the first adjusting power corresponding to the first component, and accumulates the value obtained by multiplying the second adjusting power and the second price adjustment coefficient to calculate the second adjusting power corresponding to the second component.

[0304] In this way, the adjusting force of the adjusting force supply unit can be calculated on a component-by-component basis. Consequently, a more appropriate price can be paid for the adjusting force of the adjusting force supply unit.

[0305] According to the 10th aspect of this disclosure, the settlement system (1) comprises: a settlement device (50) disposed at a connection point with a regulating force providing unit capable of providing regulating force to the power transmission and distribution network; and a server (10) communicatively connected to the settlement device (50). The settlement device (50) includes: a measurement value acquisition unit (5001) that acquires a measurement value of the effective power received at the connection point and a measurement value of the frequency at the connection point; an adjustment power metering unit (5003) that measures the adjustment power at the connection point based on the acquired measurement value of the effective power and the measurement value of the frequency; an adjustment unit (5007) that multiplies the measured adjustment power by a price adjustment coefficient for adjusting the price of the adjustment power; an adjustment power calculation unit (5004) that accumulates the value obtained by multiplying the adjustment power by the price adjustment coefficient over time to calculate the adjustment power at the connection point for a given period; a power acquisition unit (5002) that acquires the power received at the connection point during the given period; and a settlement unit (5006) that settles the adjustment power provided by the adjustment power supply unit and the price of the power received by the adjustment power supply unit based on the sum of the adjustment power and the power quantity. The server (10) includes: an evaluation unit (1003) that evaluates the stability of the adjustment force of the adjustment force providing unit; and a coefficient determination unit (1001) that changes the price adjustment coefficient according to the evaluation result of the evaluation unit that evaluates the stability. The adjustment unit (5007) of the settlement device (50) obtains the price adjustment coefficient changed by the coefficient determination unit (1001) of the server (10).

[0306] According to the 11th aspect of this disclosure, the settlement method comprises the following steps: obtaining a measurement of the effective power received at a connection point with a regulating force providing unit capable of providing regulating force to the power transmission and distribution network and a measurement of the frequency at that connection point; measuring the regulating power at the connection point based on the obtained measurement of the effective power and the measurement of the frequency; calculating the regulating power at the connection point for a given period based on the regulating power; obtaining the power received at the connection point during the given period; and settling the consideration for the regulating force provided by the regulating force providing unit and the power received by the regulating force providing unit based on the sum of the regulating power and the power quantity.

[0307] According to the 12th aspect of this disclosure, the program causes the computer (900) of the settlement device (50) to perform the following steps: obtaining a measurement of the effective power received at a connection point with a regulating force providing unit capable of providing regulating force to the power transmission and distribution network and a measurement of the frequency at the connection point; measuring the regulating power at the connection point based on the obtained measurement of the effective power and the measurement of the frequency; calculating the regulating power at the connection point for a given period based on the regulating power; obtaining the power received at the connection point during the given period; and settling the consideration for the regulating force provided by the regulating force providing unit and the power received by the regulating force providing unit based on the sum of the regulating power and the power quantity.

[0308] Industrial applicability

[0309] According to the settlement device, settlement system, settlement method and procedure involved in this disclosure, it is possible to settle the consideration corresponding to the power supplied and received and the consideration corresponding to the power supply and demand adjustment.

[0310] -Symbol Explanation-

[0311] 1. Settlement System

[0312] 10 servers

[0313] 100 CPU

[0314] 1001 Coefficient Determination Department

[0315] 1002 Receiving Department

[0316] Evaluation Department 1003

[0317] 101 Memory

[0318] 102 Communication Interface

[0319] 103 Memory

[0320] 21, 22, 23 Power Supply

[0321] 210 Control Department

[0322] 211 Turbine Unit

[0323] 212 Generator

[0324] 50 Settlement Device

[0325] 500 CPU

[0326] 5001 Measurement Acquisition Section

[0327] 5002 Electric Power Acquisition Department

[0328] Adjustments to power metering department for codes 5003, 5003a, and 5003b.

[0329] 5004, 5004a, 5004b Adjustment of electrical force calculation section

[0330] 5005 Addition Operation Unit

[0331] Settlement Department 5006

[0332] Adjustment Department for 5007, 5007a, and 5007b

[0333] 5008 Evaluation Department

[0334] 5009 Sending Department

[0335] 5010 Mediation Rate Estimation Department

[0336] 5011 Bandwidth Segmentation Unit

[0337] 501 Memory

[0338] 502 Communication Interface

[0339] 503 Display Device

[0340] 504 Memory (Coefficient Storage Unit)

[0341] 505 measuring instrument

[0342] 506 Electricity Meter

[0343] 900 Computers.

Claims

1. A measuring device, characterized in that, have: The measurement acquisition unit acquires the measurement value of the effective power received at the connection point with the adjustment force providing unit that provides adjustment force to the power transmission and distribution network, and the measurement value of the frequency at that connection point; The power metering unit adjusts the power at the connection point based on the measured value of the effective power and the measured value of the frequency. The adjustment power calculation unit accumulates the adjustment power over time to calculate the adjustment power at the connection point for a given period. An electric power acquisition unit acquires the electric power received at the connection point during the given period; and The addition unit adds the adjusted electrical force to the electrical force to obtain a settlement electrical force, which serves as payment for the adjusted force provided by the adjusted force providing unit and the electricity received by the adjusted force providing unit. The power metering unit measures the adjusted power as positive if one of the first difference between the measured effective power value and the previous measured effective power value and the second difference between the measured frequency value and the previous measured frequency value is positive and the other of the first difference and the second difference is negative; otherwise, it measures the adjusted power as negative if both the first difference and the second difference are positive or negative.

2. The metering device according to claim 1, characterized in that, The metering device also includes: The adjustment department multiplies the measured adjusted electricity by a price adjustment factor that adjusts the price of the adjusted electricity. The power adjustment calculation unit accumulates the value obtained by multiplying the power adjustment by the price adjustment coefficient to calculate the power adjustment.

3. The metering device according to claim 2, characterized in that, The metering device also includes: The coefficient storage unit stores multiple price adjustment coefficients with pre-set values ​​corresponding to different dates and times. The adjustment unit obtains the price adjustment coefficient corresponding to the given period from the coefficient storage unit.

4. The metering device according to claim 2, characterized in that, The adjustment department obtains the price adjustment coefficient from the server of the system operator that manages the power transmission and distribution network.

5. The metering device according to claim 2, characterized in that, The metering device also includes: The evaluation department evaluates the stability of the adjustment force provided by the adjustment force unit. The adjustment unit changes the price adjustment coefficient based on the evaluation result of the evaluation unit.

6. The metering device according to claim 5, characterized in that, The evaluation unit evaluates the stationarity based on the variance of the increment of the adjustment power at each step, calculated from the time series data of the adjustment power.

7. The metering device according to claim 5 or 6, characterized in that, The evaluation unit evaluates the stationarity based on the variance of the increment of the adjusted power quantity in each period, calculated from the time series data of the adjusted power quantity.

8. The metering device according to claim 5, characterized in that, The metering device also includes: The shutdown rate estimation unit estimates the shutdown rate of the regulating force providing unit based on the measured values ​​of the effective power and the frequency. The evaluation unit evaluates the stationarity based on the variance of the increment of the estimated mediation rate, calculated from time series data of the estimated mediation rate.

9. The measuring device according to any one of claims 2 to 6, characterized in that, The first component and the second component, obtained by dividing the measured value of the effective power and the measured value of the frequency by frequency band, are measured by the adjustment power metering unit. The adjustment unit multiplies the first adjusted electricity by a first price adjustment coefficient corresponding to the first component, and multiplies the second adjusted electricity by a second price adjustment coefficient corresponding to the second component. The power adjustment calculation unit calculates the first power adjustment corresponding to the first component by accumulating the value obtained by multiplying the first power adjustment and the first price adjustment coefficient, and calculates the second power adjustment corresponding to the second component by accumulating the value obtained by multiplying the second power adjustment and the second price adjustment coefficient.

10. The metering device according to claim 1, characterized in that, The adjusted power metering unit uses any one of the following equations to measure the adjusted power: Where ΔP GF f(t) is the adjusted power, f(t) is the measured value of the frequency, f(t-ΔT) is the previous measured value of the frequency, P(t) is the measured value of the effective power, and P(t-ΔT) is the previous measured value of the effective power.

11. A metering system, characterized in that, have: Metering device, located at the connection point with the regulating force providing unit that provides regulating force to the power transmission and distribution network; and A server, which is communicatively connected to the metering device, The metering device has the following features: The measurement unit acquires a measurement value of the effective power received at the connection point and a measurement value of the frequency at the connection point. The power metering unit adjusts the power at the connection point based on the measured value of the effective power and the measured value of the frequency. The adjustment department multiplies the price adjustment factor for adjusting the price of the adjusted electricity by the measured adjusted electricity. The power adjustment calculation unit calculates the power adjustment for a given period at the connection point by accumulating the value obtained by multiplying the power adjustment by the price adjustment coefficient over time. An electric power acquisition unit acquires the electric power received at the connection point during the given period; and The addition unit adds the adjusted electrical force to the electrical force to obtain a settlement electrical force, which serves as payment for the adjusted force provided by the adjusted force providing unit and the electricity received by the adjusted force providing unit. The power metering unit measures the adjusted power as positive if one of the first difference between the measured effective power value and the previous measured effective power value, and the second difference between the measured frequency value and the previous measured frequency value, is positive and the other of the first difference and the second difference is negative; otherwise, it measures the adjusted power as negative if both the first difference and the second difference are positive or negative. The server has: The evaluation department evaluates the stability of the adjustment force provided by the adjustment force unit; and The coefficient determination unit changes the price adjustment coefficient based on the evaluation result of the evaluation unit that evaluates the stability. The adjustment unit of the metering device obtains the price adjustment coefficient changed by the coefficient determination unit of the server.

12. A measurement method, characterized in that, It has the following steps: The effective power received at the connection point with the regulating force providing unit that provides regulating force to the transmission and distribution network and the frequency at that connection point are measured. The adjustment power at the connection point is measured based on the obtained effective power measurement and the frequency measurement. The adjustment power at the connection point for a given period is calculated based on the adjustment power. To obtain the electrical force delivered at the connection point during the given period; and The adjusted electrical force is added to the electrical force to obtain the settlement electrical force, which serves as the payment for the adjusted force provided by the adjusted force providing unit and the electricity received by the adjusted force providing unit. In the step of measuring the adjusted power, if one of the first difference between the measured value of the effective power and the previous measured value of the effective power and the second difference between the measured value of the frequency and the previous measured value of the frequency is positive and the other of the first difference and the second difference is negative, the adjusted power is measured as a positive value; if both the first difference and the second difference are positive or negative, the adjusted power is measured as a negative value.

13. A program product, characterized in that, The computer of the metering device shall perform the following steps: The effective power received at the connection point with the regulating force providing unit that provides regulating force to the transmission and distribution network and the frequency at that connection point are measured. The adjustment power at the connection point is measured based on the obtained effective power measurement and the frequency measurement. The adjustment power at the connection point for a given period is calculated based on the adjustment power. To obtain the electrical force delivered at the connection point during the given period; and The adjusted electrical force is added to the electrical force to obtain the settlement electrical force, which serves as the payment for the adjusted force provided by the adjusted force providing unit and the electricity received by the adjusted force providing unit. In the step of measuring the adjusted power, if one of the first difference between the measured value of the effective power and the previous measured value of the effective power and the second difference between the measured value of the frequency and the previous measured value of the frequency is positive and the other of the first difference and the second difference is negative, the adjusted power is measured as a positive value; if both the first difference and the second difference are positive or negative, the adjusted power is measured as a negative value.

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