JP2021026385A - Power price determination method and power price determination system - Google Patents

Abstract

To provide a power price determination method, etc., which determines a power price under an equal relation between a power generation side and a demand side.SOLUTION: A power price determination system 1 determines power prices of a demand part 31 which consumes power and a power generation part 11 which generates power. A bid receiving part 21 acquires a demand transaction condition set by the demand part 31 and a power generation transaction condition set by the power generation part 11. The demand part 31 and the power generation part 11 consume and generate power. A performance value acquisition part 23 acquires a demand performance value of power consumed by the demand part 31 and a power generation performance value of power generated by the power generation part 11. A matching processing part 25 determines power prices of the demand part 31 and the power generation part 11 using the demand transaction condition, the demand performance value, the power generation transaction condition and the power generation performance value.SELECTED DRAWING: Figure 1

Description

The present invention relates to an electric power price determination method and an electric power price determination system, and more particularly to an electric power price determination method for determining an electric power price of a demand unit that consumes electric power and a power generation unit that generates electric power.

Non-Patent Document 1 describes three P2P electric power transactions (outgoing P2P, controlled P2P, and tidal current) that are predicted in the future.

Secretariat of the Study Group on New Electric Power Platforms Utilizing Next-Generation Technologies, "New Business Types that Contribute to the Advancement of the Distribution Field", Slide 23, [online], [Search on July 9, 1991] ， Internet <URL: https://www.meti.go.jp/shingikai/energy_environment/denryoku_platform/pdf/007_03_00.pdf>

However, in the P2P electric power transaction described in Non-Patent Document 1, transaction conditions are acquired only from the demand side. Further, the input of transaction conditions and the matching process are both before (controlled P2P and tidal current) or after (outgoing P2P) of actual supply and demand. The power generation side and the demand side were not equal, and the relationship between the transaction conditions and matching processing and the actual supply and demand was insufficient.

Therefore, an object of the present invention is to propose a power price determination method or the like in which the power generation side and the demand side determine the power price based on an equal relationship.

The first aspect of the present invention is a power price determination method for determining the power price of the demand unit that consumes electricity and the power generation unit that generates power, and the bid reception unit sets the demand transaction conditions set by the demand unit. And the bid step for acquiring the power generation transaction conditions set by the power generation unit, the actual supply and demand step for the demand unit and the power generation unit to consume and generate power, respectively, and the actual value acquisition unit is the demand consumed by the demand unit. The step of acquiring the actual value and the actual power generation value generated by the power generation unit, and the matching processing unit using the demand transaction condition and the demand actual value, the power generation transaction condition, and the power generation actual value, said It includes a matching step to determine the power price of the demand unit and the power generation unit.

The second aspect of the present invention is the power price determination method of the first aspect, in which the demand control unit controls the power consumption in the demand unit with reference to the power generation transaction conditions in the actual supply / demand step. , And / or, the power generation control unit controls the power generation of the power generation unit with reference to the demand transaction conditions.

The third aspect of the present invention is the electric power price determination method of the first or second aspect, and in the matching step, the matching processing unit is based on the electric power price satisfying the demand transaction condition and the power generation transaction condition. By comparing the actual demand value and the actual power generation value, the actual demand value and the actual power generation value, which have corresponding ones to each other, are specified, and the actual demand value and the actual power generation value are specified. The residual power demand that does not correspond to the actual power generation value and the residual power generation that does not correspond to the actual power generation value in the actual power generation value are specified, and at least one of the residual power generation demand and the residual power generation that is desired to be matched is If it does not exist, the matching process is terminated, and if both the demand residual power and the power generation residual power for which matching is desired exist, the final price that does not satisfy at least one of the demand transaction condition and the power generation transaction condition is used. All of the remaining demand power and the remaining power generation are associated with a part or all of the other.

The fourth aspect of the present invention is the electric power price determination method of the third aspect, and the electric power price is within a range determined by using the provided fixed unit price and / or the fixed electric power selling unit price of the power generation unit. is there.

A fifth aspect of the present invention is a power price determination system for determining a power price, in which a demand unit that consumes power, a power generation unit that generates power, and the demand unit and the power generation unit each consume power. And before power generation, after the bid reception unit that acquires the demand transaction conditions set by the demand unit and the power generation transaction conditions set by the power generation unit, and after the demand unit and the power generation unit consume and generate power, respectively. The actual demand value obtained by the demand unit and the actual power generation value generated by the power generation unit, the demand transaction condition and the actual demand value, and the power generation transaction condition and the actual power generation value are obtained. It is provided with a matching processing unit that determines the power price between the demand unit and the power generation unit.

According to each aspect of the present invention, transaction conditions are obtained from the demand unit and the power generation unit. Furthermore, the transaction conditions are acquired before the actual supply and demand, and the matching process is performed after the actual supply and demand. Therefore, the demand department and the power generation department can determine their own actions by referring to the transaction conditions indicated by the other party and perform the actual supply and demand under an equal relationship. Then, the behavior is reflected in the actual supply and demand, and the electricity price is determined by the matching process based on the actual supply and demand.

It is a block diagram which shows an example of (a) configuration of the electric power price determination system which concerns on embodiment of this invention, and is a flow diagram which shows an example of (b) processing. FIG. 2 is a diagram for specifically explaining an example of the process of step ST5 of FIG. 1 (b). FIG. 3 is a diagram for specifically explaining an example of the process of step ST7 of FIG. 1 (b). FIG. 4 is a diagram for specifically explaining an example of the process of step ST9 in FIG. 1 (b).

Hereinafter, examples of the present invention will be described with reference to the drawings. The invention of the present application is not limited to this embodiment.

FIG. 1 is a block diagram showing an example of (a) configuration of the electric power price determination system according to the embodiment of the present invention, and (b) a flow diagram showing an example of processing.

An example of the configuration of the electric power price determination system 1 will be described with reference to FIG. 1A. The electric power price determination system 1 includes a power generation unit group 3, an electric power price determination unit 5, an electric power adjustment unit 6, and a demand unit group 7.

The power generation unit group 3 includes J (J is a natural number) power generation units 11 ₁ , ..., 11 _J (an example of the “power generation unit” in the claims of the present application) (subscripts of symbols may be omitted). .. The power generation unit 11 _j (j is a natural number from 1 to J) includes a power generation processing unit 13 _j , a power generation control unit 15 _j (an example of the “power generation control unit” in the claims of the present application), and a power supply unit 17 _j . Be prepared.

The electric power price determination unit 5 includes a bid reception unit 21 (an example of the "bid reception unit" in the claim of the present application), an actual value acquisition unit 23 (an example of the "actual value acquisition unit" in the claim of the present application), and a matching processing unit. 25 (an example of the "matching processing unit" according to the claim of the present application) is provided. The electric power adjusting unit 6 includes an electric power supply and demand unit 27 and a trading processing unit 29. The electric power pricing unit 5 can use the electric power adjusting unit 6 to provide, for example, a platform for P2P (peer-to-peer) trading.

The demand unit group 7 includes K (K is a natural number) demand units 31 ₁ , ..., 31 _K (an example of the “demand unit” in the claims of the present application). The demand unit 31 _k (k is a natural number from 1 to K) includes a demand processing unit 33 _k , a demand control unit 35 _k (an example of the “demand control unit” in the claims of the present application), and a power consumption unit 37 _k . Be prepared.

In the power generation unit 11, the power supply unit 17 generates electric power under the control of the power generation control unit 15 and supplies the electric power to the electric power supply / demand unit 27. The electric power supply and demand unit 27 supplies the electric power generated by the power generation unit 11 and other electric power companies, procured from the wholesale electric power trading market, and the electric power generation unit 31 to the demand unit 31. In the demand unit 31, the power consumption unit 37 consumes the power supplied by the power supply and demand unit 27 under the control of the demand control unit 35. In the electric power price determination system 1, the electric power price of each power generation unit 11 and each demand unit 31 is determined by using the actual value of actual supply and demand. The actual value of supply and demand can be obtained by using a measuring device that can be currently installed, such as a smart meter.

The power generation unit 11 may be realized by one device or may be realized by a plurality of devices. For example, the demand unit 31 may realize the process of setting the demand transaction conditions among the processes of the demand processing unit 33 on a smartphone, a PC, or the like, and realize the other parts with one device. Similarly, the demand unit 31 can be realized by one or a plurality of devices. Further, for example, a power generation unit 11 and a demand unit 31 for generating solar power in one household may be provided, and the power may be sold while the power is generated by the sunlight and purchased at night when the power is not generated by the sunlight. Good.

An example of the processing of the electric power price determination system 1 will be described with reference to FIG. 1 (b).

In step ST1, the power generation processing unit 13 sets the power generation transaction conditions for the power supply to be bid by using the settings made by the manager of the power generation unit 11. For example, in the case of photovoltaic power generation, power generation transaction conditions may be automatically set by using forecast data of sunshine hours in the area including the location of the power generation unit 11. The bid reception unit 21 acquires the power generation transaction conditions set by the power generation processing unit 13. The demand processing unit 33 sets the demand transaction conditions for the power supply to be bid by using the settings made by the administrator of the demand unit 31. For example, demand transaction conditions may be automatically set by using family schedule data and usage record data for the previous year and the previous month. The bid reception unit 21 acquires the demand pulling conditions set by the demand processing unit 33. The power generation transaction conditions and the demand transaction conditions are collectively called bid data. The bid data includes, for example, a user ID, a trading type, a bid time, a lower limit price, and an upper limit price. If the power generation processing unit 13 and the demand processing unit 33 do not set one or both of the lower limit price and the upper limit price before the actual supply and demand to be bid, or the bid reception unit 21 and the power generation processing unit 13 and / or When communication with the demand processing unit 33 is not possible, the bid reception unit 21 automatically sets bid data using other information, or manages the power generation unit 11 and the demand unit 31. The bid data is created by using the conditions predetermined by the person or the administrator of the electric power price determination system 1.

In step ST2, the actual supply and demand to be bid is performed. The electric power supply unit 17 generates electric power under the control of the power generation control unit 15, and supplies the generated electric power to the electric power supply / supply unit 27. The power consumption unit 37 consumes the power supplied by the power supply and demand unit 27 under the control of the demand control unit 35.

The electric power supply and demand unit 27 performs power control necessary for supplying electric power to the electric power consumption unit 37. For example, when the power supply unit 17 supplies an excessive amount of power, it stores electricity, consumes it, or supplies it to another electric power company. When the electric power consumed by the electric power consuming unit 37 is insufficient, the electric power is generated and supplied by itself, the stored electric power is supplied, or the electric power is supplied from another electric power company or the like.

In general, if the power generation unit group 3 predicts that the power supply amount will be insufficient compared to the power consumption amount, the desired selling price (upper limit price and lower limit price of the power generation transaction condition) presented by the power generation unit group 3 ) Tends to be higher. It is desirable that the demand unit group 7 devises to reduce the power consumption as the suggested selling price presented by the power generation unit group 3 is higher. The demand control unit 35 controls so as to reduce the power consumption consumed by the power consumption unit 37 in the actual supply and demand to be bid. If the power consumption becomes commensurate with the power supply amount by such control, the power price will be lowered by the matching process based on the actual supply and demand. Therefore, the power generation unit group 3 can suppress the power consumption in the demand unit group 7 by presenting the desired selling price in advance, and the demand unit group 7 is the power generation set by the power generation unit group 3. By acting according to the trading conditions, it is possible to obtain a favorable electricity rate.

Similarly, in general, if the demand group 7 predicts that the power supply will be insufficient to temporarily increase the consumption, the high desired consumption price (upper limit price and lower limit price of the demand transaction condition) will be set. It is considered to be presented. Then, if the desired consumption price presented by the demand unit group 7 is high, the power generation unit group 3 can be used as an index corresponding to the risk of electric power fluctuation by securing sufficient adjustment power. Further, if the demand processing unit 33 sets a high desired consumption price, the demand control unit 35 can efficiently operate the power consumption unit 37 to reduce the power consumption amount. In addition, the demand unit group 7 is considered to present a low desired consumption price if it is predicted that the power supply will be excessive due to a temporary reduction in consumption or a significant increase in the amount of solar power generation. .. Then, if the desired consumption price presented by the demand unit group 7 is low, the power generation unit group 3 can cope with the excessive supply by sufficiently securing a room for storing electricity in the power storage unit. In this way, the power generation transaction conditions and the demand transaction conditions can be used by the power generation group 3 and the demand group 7 as indicators corresponding to the risk of power fluctuations, and can be utilized for controlling the power supplied and consumed. ..

For example, as described in Non-Patent Document 1, if the matching process is performed before the actual supply and demand, the actual supply and demand becomes zero-sum, and one of the demand unit and the power generation unit becomes advantageous and the other becomes disadvantageous. .. On the other hand, if the transaction conditions are input and the matching process is performed after the actual supply and demand, the transaction conditions presented by the demand unit will be presented with reference to the actual supply and demand. Since the facts used by the Demand Department cannot be changed, the general tendency is for the Power Generation Department to secure profits before billing the Demand Department. Then, the electricity charges paid by the demand department can be unexpectedly high.

According to the invention of the present application, the demand unit and the power generation unit perform actual supply and demand with reference to each other's transaction conditions, and then perform matching processing to determine the electric power price. The Demand Department and the Power Generation Department are not in conflict but on an equal footing, and can cooperate to take concrete actions to support the entire power supply and demand system and enjoy the economic benefits of both.

In step ST3, the actual value acquisition unit 23 acquires the actual value of the electric power supplied by the electric power supply unit 17 and the electric power consumed by the electric power consumption unit 37 with respect to the actual supply and demand to be bid. Data representing the actual value of electric power is called electric power data. The actual value acquisition unit 23 can acquire electric power data by using a smart meter or the like.

In step ST4, bid + power data is created using the bid data and the power data corresponding to each power generation unit 11 and each demand unit 31.

In step ST5, the matching processing unit 25 performs the initial matching processing. A specific example of the initial matching process will be described with reference to FIG.

In step ST6, the matching processing unit 25 determines whether or not there is residual power for both buying and selling by the initial matching processing. If there is no remaining power on at least one of the trades, the process proceeds to step ST10. If both the remaining power amounts for buying and selling exist, the price correction matching process is performed (step ST7), and the process proceeds to step ST8. A specific example of the price correction matching process will be described with reference to FIG.

In step ST8, the matching processing unit 25 determines whether or not the remaining power amount of both buying and selling exists by the price correction matching processing. If there is no remaining power on at least one of the trades, the process proceeds to step ST10. If both the remaining power amounts of the buying and selling exist, the final price matching process is performed so that the remaining power amount of at least one of the buying and selling does not exist (step ST9), and the process proceeds to step ST10. A specific example of the final price matching process will be described with reference to FIG.

The matching processing unit 25 outputs the matched data (step ST10), and outputs the remaining amount data for which matching has not been established (step ST11).

The trading processing unit 29 pays to each power generation unit 11 and collects from each demand unit 31 by using the matched data and the remaining amount data within a certain period of time.

2, FIG. 3 and FIG. 4 are diagrams for specifically explaining an example of the processing of step ST5, step ST7 and step ST9 of FIG. 1B, respectively.

In a specific example, it is assumed that the electric power supply and demand unit 27 buys and sells electric power in addition to buying and selling electric power at a price determined by the electric power price determining unit 5. The fixed unit price provided at that time is 23.0 yen, and the fixed power purchase unit price is 22.0 yen. The matching process is performed from 22.0 yen to 23.0 yen in increments of 0.1 yen for the electric power unit in the actual supply and demand to be bid. Retail electricity charges include power generation and procurement costs in addition to SG & A and transportation charges. The current retail electricity rate has a fixed power generation procurement cost. According to this embodiment, the demand unit group 7 receives power supply at a price lower than the provided fixed unit price, and the power generation unit group 3 receives power at a price higher than the fixed power sales unit price, even if the SG & A expenses and the transportation charges do not change. There is a possibility that you can sell electricity at and enjoy the economic benefits.

The power generation unit 11 and the demand unit 31 each specify an upper limit price and a lower limit price for each electric power unit to be generated and consumed, respectively. The difference between the upper limit price and the lower limit price is 0.1 yen. Further, the power generation unit 11 and the demand unit 31 can specify "H" or "L" in addition to designating the upper limit price and the lower limit price. The “H” designated portion is in a more advantageous position than the “L” designated portion in the initial matching process (step ST5). The "L" designated portion is selected with priority over the "H" designated portion in the price correction matching process (step ST7) and the final price matching process (step ST9). When less power is supplied and consumed than the bid power unit, the matching process is not performed on the data bid for the insufficient power unit. If more electricity is supplied and consumed than the bid unit, the electricity will be sold and purchased at the fixed unit price and the fixed unit price provided.

FIG. 2A is a flow chart showing an example of a specific process of step ST5 of FIG. 1B. In the bid + electric power data, the matching processing unit 25 first selects an initial value for performing matching processing within a range that satisfies the power generation transaction conditions and the demand transaction conditions with respect to the actual supply and demand to be bid (step STA1). The matching processing unit 25 performs matching processing by comparing the power selling side and the power buying side with respect to each initial value (step STA2).

FIG. 2B shows an example of bidding + power data. There are four power generation units 11 in the power generation unit group 3, which are P _s1 , P _s2 , P _s3, and P _s4 . There are five demand units 31 in the demand unit group 7, and they are P _b1 , P _b2 , P _b3 , P _b4, and P _b5 . The user ID is data that identifies each power generation unit 11 and each demand unit 31.

P _s1 sets power generation transaction conditions for three power units, specifies 22.0 yen and 22.1 yen for two power units with "L", and 22.6 yen for one power unit and 22.7 yen is specified by "L".

P _s2 sets power generation transaction conditions for three power units. 22.3 yen and 22.4 yen are specified by "H" for one electric power unit, and 22.4 yen and 22.5 yen are specified by "H" for one electric power unit. For the other power unit, 22.4 yen and 22.5 yen were specified by "H", but since only two power units were supplied in the actual supply and demand, matching processing for this designation is not performed. The other power generation unit 11 and the demand unit 31 supply and consume electric power corresponding to at least the bid electric power unit.

P _s3 sets power generation transaction conditions for two power units. 22.9 yen and 23.0 yen are designated by "L" for one electric power unit, and 22.9 yen and 23.0 yen are designated by "H" for one electric power unit.

P _s4 sets power generation transaction conditions for two power units. 22.4 yen and 22.5 yen are designated by "L" for one electric power unit, and 22.6 yen and 22.7 yen are designated by "H" for one electric power unit.

P _b1 sets demand transaction conditions for two power units. 22.4 yen and 22.5 yen are designated by "L" for one electric power unit, and 22.4 yen and 22.5 yen are designated by "H" for one electric power unit.

In P _b2 , demand transaction conditions are set for one electric power unit, and 22.2 yen and 22.3 yen are specified by "L".

P _b3 sets demand transaction conditions for three power units. 22.2 yen and 22.3 yen are specified by "H" for one electric power unit, 22.6 yen and 22.7 yen are specified by "L" for one electric power unit, and 22.5 yen and 22.5 yen and 22.5 yen are specified for one electric power unit. 22.6 yen is specified by "H".

In P _b4 , demand transaction conditions are set for one electric power unit, and 22.8 yen and 22.9 yen are specified by "L".

In P _b5 , demand transaction conditions are set for one electric power unit, and 22.0 yen and 22.1 yen are designated by "H".

FIG. 2C shows an example of the data after the initial matching process. The matching processing unit 25 first selects an initial value (step STA1 in FIG. 2A). In the case of the example of FIG. 2B, it is generally desired that the power generation unit 11 be sold at a high price. Therefore, the matching processing unit 25 selects the higher amount as the initial value. The initial values of P _s1 are 22.1 yen (L), 22.1 yen (L), and 22.7 yen (L). The initial values of P _s2 are 22.4 yen (H) and 22.5 yen (H). The initial values of P _s3 are 23.0 yen (L) and 23.0 yen (H). The initial values of P _s4 are 22.5 yen (L) and 22.7 yen (H). Also, in general, the demand department 31 wants to buy at a low price. Therefore, the matching processing unit 25 selects the lower amount as the initial value. The initial values of P _b1 are 22.4 yen (L) and 22.4 yen (H). The initial value of P _b2 is 22.2 yen (L). The initial values of P _b3 are 22.2 yen (H), 22.6 yen (L), and 22.5 yen (H). The initial value of P _b4 is 22.8 yen (L). The initial value of P _b5 is 22.0 yen (H).

The matching processing unit 25 performs individual matching processing (step STA2). From 22.0 yen to 23.0 yen, the corresponding electricity unit price is determined from the trading conditions for buying and selling in increments of 0.1 yen. Since there is no corresponding sale and purchase other than 22.4 yen and 22.5 yen, it is not possible to determine the corresponding electricity unit price. At 22.4 yen, there are an H-designated portion of _{P s2} and an L-designated portion and an H-designated portion of _{P b1.} Since the H-designated portion is more advantageous than the L-designated portion in the initial matching process, the matching processing unit 25 associates _{the H-designated portion of P s2 with} the H-designated portion of P _b1. At 22.5 yen, there are an H-designated portion of _{P s2} , an L-designated portion of _{P s4} , and an H-designated portion of _{P b3.} Since the H-designated portion is more advantageous than the L-designated portion in the initial matching process, the matching processing unit associates the H-designated _{portion of P s2 with} the H-designated portion of P _b3. In addition, when a plurality of L-designated parts of the demand unit 31 correspond to the L-designated part of the power generation unit 11, one may be selected from the plurality of L-designated parts of the demand unit 31. FIG. 2C shows the initial values selected in the initial matching process, and the associated ones are described in white characters on a black background.

FIG. 3A is a flow chart showing an example of a specific process of step ST7 of FIG. 1B. First, the matching processing unit 25 determines whether or not the price range to be associated can be modified in at least one of the buying and selling (step STB1). It is assumed that the matching processing unit 25 can correct the price range, for example, if there is a price not used for the matching processing within the range of the upper limit price and the lower limit price specified in the bid data. If it can be corrected, the price range to be associated with one or both of the buying and selling is corrected (step STB2), the individual matching process is performed (step STB3), and the process returns to step STB1. If it cannot be corrected, the process ends.

In the state of FIG. 2C, the price range to be matched can be adjusted between the power generation unit 11 side and the demand unit 31 side. Therefore, the determination in step STB1 is YES.

The matching processing unit 25 increases each value on the demand unit 31 side that is not associated by 0.1 yen (step STB2). Then, the corresponding electricity unit price is determined from the trading conditions of buying and selling in increments of 0.1 yen from 22.0 yen to 23.0 yen (step STB3). At 22.1 yen, there are two L-designated parts of _{P s1} and H-designated parts of _{P b5.} Two power units P _s1 is not superiority by specified to a L specified content together, both because belonging to P _s1, results select one are the same. Therefore, one of them is selected and associated with the H designation of _{P b5.} At 22.5 yen, there is _{an L-designated portion of P s4 and} an L-designated portion of P _b1 , and these are associated with each other. At 22.7 yen, there are _{an L-designated portion of P s1} , an H-designated portion of _{P s4} , and an L-designated portion of _{P b3} . In the process of step ST7, since the L-designated portion is more advantageous than the H-designated portion, the L-designated portion of P _{s1 and} the L-designated portion of P _b3 are associated with each other. In addition, when a plurality of L-designated parts of the demand unit 31 correspond to the L-designated part of the power generation unit 11, one may be selected from the plurality of L-designated parts of the demand unit 31. Return to step STB1 in FIG. 3A. FIG. 3B shows the result of the matching process after the price adjustment on the demand unit 31 side, shows the adjusted price, and the associated one is described in white letters on a black background.

In the state of FIG. 3B, the price can be corrected on the power generation unit 11 side. Therefore, the determination of step STB1 by the matching processing unit 25 is YES.

The matching processing unit 25 increases each value on the power generation unit 11 side that is not associated by 0.1 yen (step STB2). Then, the corresponding electricity unit price is determined from the trading conditions of buying and selling in increments of 0.1 yen from 22.0 yen to 23.0 yen (step STB3). For 22.9 yen, there are L-designated portion and H-designated portion of _{P s3 and L-designated portion of P b4} . In the process of step ST7, since the L-designated portion is more advantageous than the H-designated portion, the L-designated portion of P _{s3 and} the L-designated portion of P _b4 are associated with each other. Return to step STB1 in FIG. 3A. FIG. 3C shows the result of the matching process after the price adjustment on the power generation unit 11 side, shows the corrected price, and the associated one is described in white letters on a black background.

Returning to step STB1, the matching processing unit 25 cannot adjust either the power generation unit 11 side or the demand unit 31 side, so the determination is NO, and the processing in step ST7 ends.

FIG. 4A is a flow chart showing an example of a specific process of step ST9 in FIG. 1B. The matching processing unit 25 selects the one to be associated from the remaining power amounts of both buying and selling (step STC1), and determines the final price (step STC2).

FIG. 4B shows the power units associated with FIG. 3C.

FIG. 4C shows the electric power units not associated with each other in FIG. 3C, and the power generation transaction conditions or demand transaction conditions thereof. The power units that are not associated with each other are three on the selling side and two on the buying side. Since there are few power purchase sides, the matching processing unit 25 selects two from the three power units on the power sale side in correspondence with the two power units on the power purchase side. In the process of step ST9, the L-designated portion is more advantageous than the H-designated portion. The matching processing unit 25 selects the H-designated portion on the power selling side according to the L-designated portion of _{P b2.} Here, _{the H designation of P s4} is selected because it specifies a close value. The final price, when the range specified in the P _B2L, since the price P _S4h is below the lower limit price, and 22.3 yen most unfavorable price L specified amount of P _b2. In addition, the L-designated portion on the power selling side is selected corresponding to the H-designated portion of _{P b3.} Here, the L-specified portion of _{P s1 is selected.} The final price, when the range specified in the P _B1L, since it sell electricity at a price P _B3H is below the lower limit price, the most favorable price P _S1LH, and 22.1 yen.

In the example of FIG. 4, for example, there is no H-designated portion corresponding to the L-designated portion and only the L-designated portion, or there is no L-designated portion corresponding to the H-designated portion and only the H-designated portion. For example, the final price may be determined by an average value. In such cases, the final price may deviate from the terms and conditions of both buying and selling.

From FIGS. 4 (b) and 4 (c), the _{correspondence and the price thereof are output as the matched data (step ST10) other than the H-designated portion of P s3} , and the remaining amount data (step ST11) is the H-designated portion of _{P s3.} Is output. The matched data includes, for example, a user ID, a trading type, a transaction price, an electric energy, a number of matchings, and the like. The remaining amount data includes a user ID, a trading type, and an electric energy amount.

In this embodiment, an example in which the electric power generated by the power generation unit group 3 is supplied to the demand unit group 7 via the power adjustment unit 6 has been described. The power generation unit group 3 may be supplied to the demand unit group 7 without passing through the power adjustment unit 6, and a part thereof passes through the power adjustment unit 6 and the other part does not pass through the power adjustment unit 6. It may be supplied to the demand unit group 7. In addition, the burden of transportation charges and fees may be borne by a part or all of the power generation group 3, a part or all of the demand group 7, and a part or all of both. You may bear it.

Further, in this embodiment, the power generation unit 11 and the demand unit 31 specify a price range for each electric power unit, but for example, a single price range is specified for the entire electric power supplied and consumed. You may. Further, the step size, the vertical width, and the like of the price range may be different for each of the power generation unit 11 and the demand unit 31, and may be specified for each.

Further, in this embodiment, it has been explained that the power generation unit 11 and the demand unit 31 are designated as L and H to strategically obtain economic benefits. Some of the power generation unit 11 and the demand unit 31 aim for high risk and high return, while others are low risk and low return and solid. According to the present invention, in order to obtain transaction conditions from the power generation unit 11 and the demand unit 31, the bid data includes the strategy data, and the individual matching process that reflects the strategies of both (step STA2 in FIG. 2A). The step STB3) in FIG. 3A and the final price matching process (step ST9 in FIG. 1B) can be realized.

In addition, in the individual matching process, instead of / in addition to specifying "L" or "H", for example, in descending order of electric energy, early bidding, large price range, small price range, etc. Processing may be performed in ascending order of user ID (longest contract), largest user ID (shortest contract), or evenly divided by all bidders or bid electric energy.

Further, whether or not to perform the final price matching process may be determined by the individual power generation unit 11 and the demand unit 31 and instructed in the bid data. Further, in the final price matching process, for example, the final price may be determined and the electric power for sale may be associated. Here, the final price may be calculated based on the price of the matching result, or may be calculated based on the price of the matching failure. For example, the upper limit and the lower limit of the price range of the entire matching are M and m, respectively, and the total selling power amount and the total buying power amount of the matching failure are s and b, respectively. The final buying price may be M-{(bM-sm) ÷ 2b}, and the final selling price may be m + {(bM-sm) ÷ 2b}.

In addition, the price range of the entire matching is the fixed power purchase unit price when the power generated by the power adjustment unit 6, the power generation group 3, etc. is sold to the general public, and the power adjustment unit 6, the demand unit group 7 is generally supplied. It may be decided by referring to the fixed unit price provided in the case and taking into account the fee and the like. Further, at least one of the upper limit price and the lower limit price may be set for a part or all of the bid data, and the other may not be set.

1 Electric power price determination system, 3 Power generation unit group, 5 Electric power price determination unit, 7 Demand unit group, 11 Power generation unit, 13 Power generation processing unit, 15 Power generation control unit, 17 Power supply unit, 21 Bid reception unit, 23 Electric power adjustment unit , 25 Actual value acquisition unit, 27 Matching processing unit, 29 Trading processing department, 31 Demand department, 33 Demand processing department, 35 Demand control department, 37 Power consumption department

Claims (5)

It is an electric power price determination method that determines the electric power price of the demand unit that consumes electric power and the power generation unit that generates electric power.
A bidding step in which the bid reception unit acquires the demand transaction conditions set by the demand department and the power generation transaction conditions set by the power generation department.
The actual supply and demand steps in which the demand unit and the power generation unit consume and generate electric power, respectively,
The actual value acquisition step of acquiring the actual demand value consumed by the demand unit and the actual power generation value generated by the power generation unit, and the actual value acquisition step.
A power price determination method including a matching step in which the matching processing unit determines the power prices of the demand unit and the power generation unit using the demand transaction condition and the demand actual value, and the power generation transaction condition and the power generation actual value. In the actual supply and demand step
The demand control unit controls the power consumption in the demand unit with reference to the power generation transaction conditions, and / or
The power price determination method according to claim 1, wherein the power generation control unit controls the power generation of the power generation in the power generation unit with reference to the demand transaction conditions. In the matching step, the matching processing unit
By comparing the actual demand value and the actual power generation value with the power price satisfying the demand transaction condition and the power generation transaction condition, the demand in which the actual demand value and the actual power generation value correspond to each other. In addition to specifying the corresponding power and power generation, the remaining demand power that does not correspond to the actual power generation value in the actual demand value and the residual power generation that does not correspond to the actual demand value in the actual power generation value are specified.
Further, if at least one of the demand residual power and the power generation residual power for which matching is desired does not exist, the matching process is terminated.
Further, if both the demand residual power and the power generation residual power that are desired to be matched exist, the demand residual power and the power generation residual power are obtained at a final price that does not satisfy at least one of the demand transaction conditions and the power generation transaction conditions. The power price determination method according to claim 1 or 2, wherein all of one is associated with a part or all of the other. The electric power price determination method according to claim 3, wherein the electric power price is within a range determined by using the provided fixed unit price and / or the fixed electric power selling unit price of the power generation unit. It is an electricity pricing system that determines the electricity price.
The demand department that consumes electricity and
A power generation unit that generates electricity,
A bid reception unit that acquires the demand transaction conditions set by the demand unit and the power generation transaction conditions set by the power generation unit before the demand unit and the power generation unit consume and generate electric power, respectively.
An actual value acquisition unit that acquires the actual demand value consumed by the demand unit and the actual power generation value generated by the power generation unit after the demand unit and the power generation unit consume and generate electric power, respectively.
A power price determination system including a matching processing unit that determines a power price between the demand unit and the power generation unit using the demand transaction condition and the demand actual value, and the power generation transaction condition and the power generation actual value. ..

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