Feeder optical storage and charging collaborative clearing method based on VCG auction mechanism

Abstract

The invention discloses a feed line optical storage and charging collaborative clearing method based on a VCG auction mechanism, and the method comprises the steps: firstly building a feed line superior power supply and distributed optical storage and charging collaborative operation model under the VCG auction mechanism, and then building a feed line optical storage and charging multi-agent collaborative operation day-ahead electric energy market clearing model based on the VCG auction mechanism. And finally, proposing a solving method and a process of the day-ahead electric energy market clearing model. According to the invention, a marketization mechanism which can excite each main body to participate in collaborative operation according to the real interaction characteristics and the cost model is constructed based on the problems of investment main body and operation income related to energy storage, and the complementary characteristics and cost-benefit distribution mechanism among different main bodies such as optical storage and charging, a power distribution network and the like; the real complementary potential of different main bodies such as optical storage and charging can be excavated and utilized, collaborative optimization operation of the optical storage and charging and the power distribution network is realized, the economic benefit of each main body of the optical storage and charging is improved, and the access capability of the power distribution network to distributed photovoltaic and charging facilities is improved with the minimum cost.

Description

Technical Field

[0001] The present invention belongs to the technical field of feeder optical storage and charging coordination, and in particular relates to a feeder optical storage and charging coordination clearing method based on a VCG auction mechanism. Background Art

[0002] With the large-scale construction and application of distributed photovoltaic and electric vehicle charging facilities, the volatility of distribution line load has become more prominent, causing safety operation problems such as reverse flow and even reverse heavy overload. The application of energy storage technology and devices as well as photovoltaic storage and charging coordinated operation technology has become a common means to solve the above problems.

[0003] However, energy storage involves issues of investment entities and operating returns. The coordinated operation of photovoltaic, storage and charging also needs to consider the complementary characteristics and cost-benefit distribution mechanism between different entities such as photovoltaic, storage and charging and distribution networks. It is necessary to build a market-based mechanism that can stimulate various entities to participate in coordinated operation according to their real interactive characteristics and cost models, so as to achieve the optimal benefits of multiple entities and maximize the overall social welfare of the whole society.

[0004] In order to solve the above problems, it is necessary to develop a feeder PV storage and charging coordinated clearing method based on the VCG auction mechanism. Summary of the invention

[0005] The purpose of the present invention is to achieve the optimization of the benefits of the coordinated operation of multiple subjects of feeder photovoltaic, storage and charging, and to provide a feeder photovoltaic, storage and charging coordinated clearing method based on the VCG auction mechanism, which can help to tap the real complementary potential of different subjects such as photovoltaic, storage and charging, realize the coordinated optimization operation of photovoltaic, storage and charging and distribution networks, improve the economic benefits of each subject of photovoltaic, storage and charging, and at the same time enhance the access capacity of the distribution network to distributed photovoltaic and charging facilities at a minimized cost.

[0006] The object of the present invention is achieved by: a feeder optical storage and charging coordinated clearing method based on a VCG auction mechanism, comprising the following steps:

[0007] S1, establish a collaborative operation model of feeder upstream power supply and distributed photovoltaic storage and charging under the VCG auction mechanism;

[0008] S2, establish a day-ahead electricity energy market clearing model based on the VCG auction mechanism with the coordinated operation of multiple entities of feeder PV storage and charging;

[0009] S3, proposes a solution method and process for the day-ahead electricity energy market clearing model with the coordinated operation of multiple entities of feeder photovoltaic storage and charging.

[0010] Preferably, the step S1 specifically includes:

[0011] S11, establish the coordinated operation power model of the feeder upper power supply and the distributed photovoltaic storage and charging entities:

[0012] In the VCG auction mechanism, the optimal coordinated operating power P of the four entities i, namely, the upper power source, distributed photovoltaic, energy storage, and charging pile, in time period t is i co* (t) is the optimal power that minimizes the total operating cost C of the entire feeder when each entity participates in the feeder coordinated operation at its reported price. The calculation formula is as follows:

[0013]

[0014] In the formula, the total feeder operating cost C includes the cost of purchasing and selling electricity from the upper power source, the cost of purchasing electricity from distributed photovoltaics, the charging and discharging income from energy storage, and the charging and discharging income from charging piles, which is expressed as follows:

[0015]

[0016] In the formula, c(t) is the cost at time t, which is expressed as follows:

[0017]

[0018] In the formula, They are the electricity prices for purchasing and selling electricity from the upper power source. are the power purchased from the upper power source and the power sold to the upper power source, P PV,i (t) They are the grid-connected power of distributed photovoltaics, the discharge power of energy storage, the charging power of energy storage, the discharge power of charging piles, and the charging power of charging piles, and are uniformly expressed as P in formula (1): i co (t), λ PV,i (t) They are the power generation price reported by distributed photovoltaics, the discharge price and charging price reported by energy storage, and the discharge price and charging price reported by charging piles;

[0019] S12, establish a price model for the coordinated operation of feeder upper power sources and distributed photovoltaic storage and charging entities:

[0020] According to the VCG auction mechanism, in the coordinated operation of multiple entities of the feeder optical storage and charging, the coordinated operation price of different entities is calculated according to their contribution to the total operating cost of the entire feeder, that is:

[0021]

[0022] In the formula, C -i is the total operating cost of the entire feeder when subject i is not put into feeder operation;

[0023] S13, establish a collaborative operation model of feeder upper power supply and distributed photovoltaic storage and charging entities:

[0024] The price obtained by formula (4) may be less than the reported cost of subject i. In this case, subject i should not participate in the feeder coordinated operation. Therefore, the flag defining whether subject i participates in the coordinated operation is expressed as follows:

[0025]

[0026] In the formula, when the subject i is four different subjects, namely, the upper power supply, distributed photovoltaic, energy storage, and charging pile, and different states of electricity purchase and sale, charging and discharging, Corresponding to and λ PV,i (t)

[0027] Preferably, the step S2 is specifically:

[0028] According to the collaborative operation model of feeder upper power source and distributed photovoltaic storage and charging under the VCG auction mechanism, a day-ahead electricity energy market clearing model with multi-agent collaborative operation of feeder photovoltaic storage and charging is established;

[0029] The objective function of the day-ahead electricity energy market clearing model for the coordinated operation of multiple entities of feeder PV, storage and charging is to minimize the total feeder operation cost within a day when each entity uses its coordinated operation price under the VCG auction mechanism and whether to participate in the feeder coordinated operation according to the coordinated operation flag, that is:

[0030]

[0031] Where c'(t) is the cost at time t, expressed as follows:

[0032]

[0033] Preferably, the step S3 specifically includes:

[0034] S31, solution method:

[0035] The collaborative operation model of feeder upstream power supply and distributed photovoltaic storage and charging under the VCG auction mechanism and the day-ahead electricity market clearing model of multi-agent collaborative operation of feeder photovoltaic storage and charging are both established as linear programming models and solved using the commercial software CPLEX or the open source solver lpsolve.

[0036] S32, solution process:

[0037] Perform iterative solution until convergence. The steps are as follows:

[0038] S321, solving the model shown in formula (1), formula (2), and formula (3) to obtain the coordinated operation power of the feeder upper power supply and the distributed photovoltaic storage and charging;

[0039] S322, calculating the coordinated operation price of the feeder upper power source and the distributed photovoltaic storage and charging according to formula (4);

[0040] S323, calculating the coordinated operation mark of the feeder upper power source and the distributed photovoltaic storage and charging according to formula (5);

[0041] S324, solving the model shown in formula (6), formula (7), and formula (8) to obtain the latest coordinated operating power of the feeder upper power source and the distributed solar energy storage and charging;

[0042] S325, comparing the coordinated operation power obtained in step S324 and step S321, if the deviation is less than the set threshold, then the process ends, otherwise, proceed to step S326;

[0043] S326, according to the latest coordinated operation power, the coordinated operation price of the feeder upper power supply and the distributed photovoltaic storage and charging is calculated according to formula (9), and the coordinated operation mark of the feeder upper power supply and the distributed photovoltaic storage and charging is calculated according to formula (5);

[0044]

[0045] Where C' -i It is the total operating cost of the entire feeder when subject i does not participate in the coordinated operation of the feeder (other subjects remain unchanged);

[0046] S327, according to the coordinated operation price and coordinated operation flag obtained in step S326, solve according to the model shown in formula (6), formula (7), and formula (8) to obtain the latest coordinated operation power of the feeder upper power supply and the distributed solar energy storage and charging;

[0047] S328, compare step S327 with the collaborative operation power calculated last time. If the deviation is less than the set threshold, then end; otherwise, return to step S326 and continue until the deviation is less than the set threshold.

[0048] Preferably, the threshold is 1%.

[0049] Due to the adoption of the above technical scheme, the beneficial effects of the present invention are as follows: the present invention takes into account the issues of investment entities and operating income involved in energy storage, as well as the complementary characteristics and cost-benefit distribution mechanism between different entities such as photovoltaic storage and charging and distribution networks, and constructs a market-oriented mechanism that can stimulate various entities to participate in collaborative operation according to their real interactive characteristics and cost models, and proposes a feeder photovoltaic storage and charging collaborative clearing method based on the VCG auction mechanism, which is helpful to tap and utilize the real complementary potential of different entities such as photovoltaic storage and charging, realize the coordinated optimization operation of photovoltaic storage and charging and distribution networks, and improve the economic benefits of various photovoltaic storage and charging entities. At the same time, the distribution network's access capacity to distributed photovoltaic and charging facilities is improved at a minimized cost, thereby achieving the optimal benefits of multiple entities and maximizing the overall social welfare of the whole society. DETAILED DESCRIPTION

[0050] The technical solution of the present invention is further specifically described below through embodiments.

[0051] The present invention provides a feeder optical storage and charging coordinated clearing method based on a VCG auction mechanism, comprising the following steps S1, S2 and S3.

[0052] The VCG auction mechanism consists of Vickrey auction, Clarke tax and Groves mechanism. Vickrey auction is the second price sealed auction, which can guide market players to quote according to their real prices; Clarke tax refers to a mechanism to levy taxes on key entities that affect the benefits of the alliance. The amount of tax levied is equal to the net loss caused to other entities when the key entity participates in the alliance. This tax system can solve the sustainability and free-rider problems of the alliance cooperation game, and can also enable market players to quote according to their real prices; the goal of the Groves mechanism is to maximize the overall benefits of the alliance. It can be seen that the VCG auction mechanism is in line with the coordinated operation of multiple entities of feeder optical storage and charging, guiding each optical storage and charging entity to report according to the real model and minimize the total operating cost.

[0053] Step S1, establish a collaborative operation model of feeder upstream power supply and distributed optical storage and charging under the VCG auction mechanism.

[0054] According to the VCG auction mechanism, step S1 specifically includes:

[0055] S11, establish the coordinated operation power model of the feeder upper power supply and the distributed photovoltaic storage and charging entities:

[0056] In the VCG auction mechanism, the optimal coordinated operating power P of the four entities i, namely, the upper power source, distributed photovoltaic, energy storage, and charging pile, in time period t is i co*(t) is the optimal power that minimizes the total operating cost C of the entire feeder when each entity participates in the feeder coordinated operation at its reported price. The calculation formula is as follows:

[0057]

[0058] In the formula, the total feeder operating cost C includes the cost of purchasing and selling electricity from the upper power source, the cost of purchasing electricity from distributed photovoltaics, the charging and discharging income from energy storage, and the charging and discharging income from charging piles, which is expressed as follows:

[0059]

[0060] In the formula, T is the number of time periods in a day. If one hour is a time period, a day includes 24 time periods, that is:

[0061]

[0062] Where c(t) is the cost at time t, expressed as follows:

[0063]

[0064] In the formula, These are the electricity prices for purchasing and selling electricity from the upper power source. For example, at 10:00 on a certain day, the prices were 0.98 yuan / kWh and 0.68 yuan / kWh respectively; are the power purchased from the upper power source and the power sold to the upper power source, for example, at 10:00 on a certain day, the power is 400kW and 0kW; P PV,i (t) They are the grid-connected power of distributed photovoltaic, the discharge power of energy storage, the charging power of energy storage, the discharge power of charging pile, and the charging power of charging pile. For example, at 10:00 on a certain day, the power is 1200kW, 800kW, 0kW, 0kW, and 2400kW respectively, and they are uniformly expressed as P in formula (1): i co (t);λ PV,i (t) The power generation price reported by distributed photovoltaics is 0.39 yuan / kWh, the discharge price reported by energy storage is 0.92 yuan / kWh, the charging price is 0.42 yuan / kWh, and the discharge price reported by charging piles is 0.88 yuan / kWh, and the charging price is 0.66 yuan / kWh. Then, at 10:00 on that day, the operating cost of the feeder is:

[0065] c(t)=0.98*400-0.68*0+0.39*1200+0.92*800-0.42*0+0.88*0-0.66*2400=12

[0066] (Yuan / h).

[0067] S12, establish a price model for the coordinated operation of feeder upper power sources and distributed photovoltaic storage and charging entities:

[0068] According to the VCG auction mechanism, in the coordinated operation of multiple entities of the feeder optical storage and charging, the coordinated operation price of different entities is calculated according to their contribution to the total operating cost of the entire feeder, that is:

[0069]

[0070] In the formula, C -i It is the total operating cost of the entire feeder when subject i is not put into feeder operation.

[0071] As in the above calculation example, when distributed photovoltaic power generation is not put into feeder operation, the total operating cost of the entire feeder is:

[0072] c -i (t)=0.98*1600-0.68*0+0.92*800-0.42*0+0.88*0-0.66*2400=720

[0073] (Yuan / h).

[0074] Therefore, the coordinated operation price of the distributed photovoltaic is:

[0075]

[0076] S13, establish a collaborative operation model of feeder upper power source and distributed photovoltaic storage and charging entities:

[0077] The price obtained by formula (4) may be less than the reported cost of subject i. In this case, subject i should not participate in the feeder coordinated operation. Therefore, the flag defining whether subject i participates in the coordinated operation is expressed as follows:

[0078]

[0079] In the formula, when the subject i is different subjects such as the upper power supply, distributed photovoltaic, energy storage, charging pile, etc. and different power purchase and sale, charging and discharging states, Corresponding to and λ PV,i (t)

[0080] In the above calculation, the coordinated operation price of distributed photovoltaics is calculated to be 0.59 yuan / kWh, which is greater than the reported 0.39 yuan / kWh. Therefore, the distributed photovoltaics should participate in the feeder coordinated operation, and the coordinated operation flag is 1.

[0081] S2, establish a day-ahead electricity energy market clearing model based on the VCG auction mechanism for the coordinated operation of multiple entities of feeder PV storage and charging. Step S2 is specifically as follows:

[0082] According to the collaborative operation model of feeder upstream power supply and distributed photovoltaic storage and charging under the VCG auction mechanism, a day-ahead electricity energy market clearing model with multi-agent collaborative operation of feeder photovoltaic storage and charging is established.

[0083] The objective function of the day-ahead electricity energy market clearing model for the coordinated operation of feeder PV, storage and charging is to minimize the total feeder operation cost C′ within a day when each subject uses its coordinated operation price under the VCG auction mechanism and whether to participate in the feeder coordinated operation according to the coordinated operation flag, that is:

[0084]

[0085] Where c'(t) is the cost at time t, expressed as follows:

[0086]

[0087] Example: Referring to step (1) of the example, the price of photovoltaic coordinated operation is calculated. 0.59 yuan / kWh, collaborative operation mark is 1.

[0088] Energy storage is in discharge state, charging coordination mark If the feeder is not put into operation, the total operating cost of the entire feeder is:

[0089] c -i (t) = 0.98*1200-0.68*0+0.39*1200+0.88*0-0.66*2400 = 60 (yuan / h).

[0090] Therefore, the discharge cooperative operation price of this energy storage is:

[0091]

[0092] It is less than the reported 0.92 yuan / kWh. Therefore, the energy storage should not participate in the feeder coordinated operation. The discharge coordinated operation mark is 0.

[0093] Electric car in discharge state, charging coordination sign If the feeder is not put into operation, the total operating cost of the entire feeder is:

[0094] c -i (t) = -0.68*1200+0.39*1200 = -348 (yuan / h).

[0095] Therefore, the discharge cooperative operation price of this electric vehicle is:

[0096]

[0097] It is less than the reported 0.88 yuan / kWh. Therefore, the electric vehicle should participate in the feeder coordinated operation and the discharge coordinated operation mark is 1.

[0098] The power supply is in the state of purchasing electricity from the superior power supply, and the power sales cooperation mark If the feeder is not put into operation, the total operating cost of the entire feeder is:

[0099] c -i (t) = 0.39*1200 + 0.92*1200 - 0.42*0 + 0.88*0 - 0.66*2400 = -12 (yuan / h).

[0100] Therefore, the price of purchasing electricity from the upper power source for coordinated operation is:

[0101]

[0102] It is lower than the power purchase price of 0.98 yuan / kWh of the upper power grid. Therefore, the upper power grid should participate in the feeder coordinated operation. is 1.

[0103] Therefore, formula (8) is:

[0104]

[0105] Similarly, c'(t) for all T periods can be obtained, thereby obtaining formula (7).

[0106] S3, a solution method and process for the day-ahead electricity energy market clearing model with feeder PV, storage and charging multi-agent coordinated operation is proposed. Step S3 specifically includes:

[0107] S31, solution method:

[0108] It can be seen from the models in step S1 and step S2 that the collaborative operation model of the feeder upstream power supply and distributed photovoltaic storage and charging under the VCG auction mechanism and the day-ahead electricity market clearing model of the multi-agent collaborative operation of feeder photovoltaic storage and charging are both established as linear programming models, which can be solved using commercial software such as CPLEX or open source solvers such as lpsolve.

[0109] S32, solution process:

[0110] Since the coordinated operation power of the feeder upper power supply and distributed photovoltaic storage and charging obtained by solving the models shown in formulas (6), (7), and (8) may be different from the coordinated operation power of the feeder upper power supply and distributed photovoltaic storage and charging obtained by solving the models shown in formulas (1), (2), and (3), it is necessary to iterate and solve until convergence. The steps are as follows:

[0111] S321, solving the model shown in formula (1), formula (2), and formula (3) to obtain the coordinated operation power of the feeder upper power supply and the distributed solar energy storage and charging, see step S1 embodiment;

[0112] S322, calculating the coordinated operation price of the feeder upper power supply and the distributed photovoltaic storage and charging according to formula (4), see step S2 embodiment;

[0113] S323, calculating the coordinated operation flag of the feeder upper power supply and the distributed photovoltaic storage and charging according to formula (5), see the embodiment of step S1;

[0114] S324, solving the model shown in formula (6), formula (7), and formula (8) to obtain the latest coordinated operating power of the feeder upper power supply and the distributed solar energy storage and charging, see step S2 embodiment;

[0115] S325, comparing the coordinated operation power obtained in step S324 and step S321, if the deviation is less than a set threshold, such as 1%, then the process ends, otherwise, proceed to step S326;

[0116] S326, according to the latest coordinated operation power, the coordinated operation price of the feeder upper power supply and the distributed photovoltaic storage and charging is calculated according to formula (9), and the coordinated operation mark of the feeder upper power supply and the distributed photovoltaic storage and charging is calculated according to formula (5);

[0117]

[0118] Where C' -i is the total operating cost of the entire feeder when subject i does not participate in the coordinated operation of the feeder (other subjects remain unchanged), see the embodiment of step S2;

[0119] S327, according to the coordinated operation price and coordinated operation flag obtained in step S326, solve according to the model shown in formula (6), formula (7), and formula (8) to obtain the latest coordinated operation power of the feeder upper power supply and the distributed solar storage and charging, see the embodiment of step S2;

[0120] S328, compare step S327 with the collaborative operation power calculated last time, if the deviation is less than the set threshold, such as 1%, then end, otherwise return to step S326 and continue until the deviation is less than the set threshold.

[0121] In summary, the present invention explores the feeder photovoltaic, storage and charging coordinated clearing method under the market mechanism, which helps to tap the real complementary potential of different entities such as photovoltaic, storage and charging, realize the coordinated and optimized operation of photovoltaic, storage and charging and distribution network, improve the economic benefits of each entity of photovoltaic, storage and charging, and at the same time enhance the access capacity of distribution network to distributed photovoltaic and charging facilities at the minimized cost.

[0122] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the specific implementation modes of the present invention can still be modified or replaced by equivalents, and any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A feeder PV storage and charging coordinated clearing method based on VCG auction mechanism, It is characterized in that The steps include: S1, establish a collaborative operation model of feeder upstream power supply and distributed photovoltaic storage and charging under the VCG auction mechanism; S2, establish a day-ahead electricity energy market clearing model based on the VCG auction mechanism with the coordinated operation of multiple entities of feeder PV storage and charging; S3, proposes a solution method and process for the day-ahead electricity energy market clearing model with the coordinated operation of multiple entities of feeder photovoltaic storage and charging.

2. According to the VCG auction mechanism-based feeder optical storage and charging coordinated clearing method of claim 1, It is characterized in that The step S1 specifically includes: S11, establish the coordinated operation power model of the feeder upper power supply and the distributed photovoltaic storage and charging entities: In the VCG auction mechanism, the optimal coordinated operating power of the four entities i, namely, the upper power source, distributed photovoltaic, energy storage, and charging piles, in time period t is It is the optimal power that minimizes the total operating cost C of the entire feeder when each entity participates in the feeder coordinated operation at the price reported by it. The calculation formula is as follows: In the formula, the total feeder operating cost C includes the cost of purchasing and selling electricity from the upper power source, the cost of purchasing electricity from distributed photovoltaics, the charging and discharging income from energy storage, and the charging and discharging income from charging piles, which is expressed as follows: Where c(t) is the cost at time t, expressed as follows: In the formula, They are the electricity prices for purchasing and selling electricity from the upper power source. They are the power of purchasing and selling electricity from the upper power source. They are the grid-connected power of distributed photovoltaics, the discharge power of energy storage, the charging power of energy storage, the discharge power of charging piles, and the charging power of charging piles, and are uniformly expressed as in formula (1): They are the power generation price reported by distributed photovoltaics, the discharge price and charging price reported by energy storage, and the discharge price and charging price reported by charging piles; S12, establish a price model for the coordinated operation of feeder upper power sources and distributed photovoltaic storage and charging entities: According to the VCG auction mechanism, in the coordinated operation of multiple entities of the feeder optical storage and charging, the coordinated operation price of different entities is calculated according to their contribution to the total operating cost of the entire feeder, that is: In the formula, C -i is the total operating cost of the entire feeder when subject i is not put into feeder operation; S13, establish a collaborative operation model of feeder upper power source and distributed photovoltaic storage and charging entities: The price obtained by formula (4) may be less than the reported cost of subject i. In this case, subject i should not participate in the feeder coordinated operation. Therefore, the flag defining whether subject i participates in the coordinated operation is expressed as follows: In the formula, when the subject i is four different subjects, namely, the upper power supply, distributed photovoltaic, energy storage, and charging pile, and different states of electricity purchase and sale, charging and discharging, Corresponding to and 3. According to the VCG auction mechanism-based feeder optical storage and charging coordinated clearing method of claim 2, It is characterized in that The step S2 is specifically as follows: According to the collaborative operation model of feeder upper power source and distributed photovoltaic storage and charging under the VCG auction mechanism, a day-ahead electricity energy market clearing model with multi-agent collaborative operation of feeder photovoltaic storage and charging is established; The objective function of the day-ahead electricity energy market clearing model for the coordinated operation of multiple entities of feeder PV, storage and charging is to minimize the total feeder operation cost within a day when each entity uses its coordinated operation price under the VCG auction mechanism and whether to participate in the feeder coordinated operation according to the coordinated operation flag, that is: Where c'(t) is the cost at time t, expressed as follows:

4. According to claim 3, the feeder optical storage and charging coordinated clearing method based on the VCG auction mechanism, It is characterized in that The step S3 specifically includes: S31, solution method: The collaborative operation model of feeder upper power source and distributed photovoltaic storage and charging under the VCG auction mechanism and the day-ahead electricity market clearing model of multi-agent collaborative operation of feeder photovoltaic storage and charging are both established as linear programming models and solved using the commercial software CPLEX or the open source solver lpsolve. S32, solution process: Perform iterative solution until convergence. The steps are as follows: S321, solving the model shown in formula (1), formula (2), and formula (3) to obtain the coordinated operation power of the feeder upper power supply and the distributed photovoltaic storage and charging; S322, calculating the coordinated operation price of the feeder upper power source and the distributed photovoltaic storage and charging according to formula (4); S323, calculating the coordinated operation mark of the feeder upper power source and the distributed photovoltaic storage and charging according to formula (5); S324, solving the model shown in formula (6), formula (7), and formula (8) to obtain the latest coordinated operating power of the feeder upper power source and the distributed solar energy storage and charging; S325, comparing the coordinated operation power obtained in step S324 and step S321, if the deviation is less than the set threshold, then the process ends, otherwise, proceed to step S326; S326, according to the latest coordinated operation power, the coordinated operation price of the feeder upper power supply and the distributed photovoltaic storage and charging is calculated according to formula (9), and the coordinated operation mark of the feeder upper power supply and the distributed photovoltaic storage and charging is calculated according to formula (5); Where C' -i It is the total operating cost of the entire feeder when subject i does not participate in the feeder coordinated operation while other subjects remain unchanged; S327, according to the coordinated operation price and coordinated operation flag obtained in step S326, solve according to the model shown in formula (6), formula (7), and formula (8) to obtain the latest coordinated operation power of the feeder upper power supply and the distributed solar energy storage and charging; S328, compare step S327 with the collaborative operation power calculated last time. If the deviation is less than the set threshold, then end; otherwise, return to step S326 and continue until the deviation is less than the set threshold.

5. According to the VCG auction mechanism-based feeder optical storage and charging coordinated clearing method of claim 4, Features: The threshold value is 1%.

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