Quantity reporting and quotation system for building virtual power plant participating in interruptible load transaction

Abstract

The invention relates to power grid load management, in particular to an amount and price reporting system for building virtual power plant participating in interruptible load transaction, which comprises a scheduling demand information receiving module for receiving interruptible load demand information of an operation week published to a market subject by a scheduling center through a transaction system; the data storage module is used for storing the interruptible load demand information in the scheduling demand information receiving module and interruptible load clearing information of the operation weeks disclosed to the market main body by the transaction system; the capacity-price calculation module is used for establishing a report quotation model of the interruptible load transaction and solving the report quotation model by utilizing a nonlinear programming solver to obtain the capacity and price declared to the transaction system; the market declaration module is used for acquiring the declaration capacity and the declaration price of the capacity-price calculation module and carrying out transaction declaration on a transaction system; according to the technical scheme provided by the invention, the defect that reasonable declaration capacity and declaration price of a building virtual power plant are difficult to formulate in the prior art can be effectively overcome.

Description

Technical Field

[0001] The invention relates to power grid load management, and in particular to a quotation system for a building virtual power plant to participate in interruptible load trading. Background Art

[0002] In cities with highly concentrated loads, the problem of lack of flexible regulation resources is particularly prominent, so it is imperative to build a virtual power plant that meets the regulation needs of urban power grids. Buildings are important energy consumers in cities. They have high-quality flexible resources such as central air conditioners, electric vehicle charging piles, and energy storage equipment, making them ideal objects for building virtual power plants. As a natural aggregate of multiple flexible loads, building virtual power plants can achieve complementary advantages between loads and buildings, and reserve stable and reliable regulation capacity for urban power grids. However, the regulation potential of building clusters in urban power grids has not yet been fully released. Summary of the invention

[0003] 1. Technical issues to be resolved

[0004] In view of the above-mentioned shortcomings of the prior art, the present invention provides a quotation system for a building virtual power plant to participate in interruptible load trading, which can effectively overcome the defect of the prior art that it is difficult for a building virtual power plant to formulate a reasonable declared capacity and declared price.

[0005] (II) Technical solution

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] A quotation system for a building virtual power plant to participate in interruptible load trading, comprising a dispatching demand information receiving module, a data storage module, a capacity-price calculation module and a market declaration module;

[0008] The dispatch demand information receiving module receives the interruptible load demand information of the operation week released by the dispatch center to the market entities through the trading system;

[0009] A data storage module stores the interruptible load demand information in the dispatch demand information receiving module, and the interruptible load clearing information disclosed by the trading system to the market entities during the operation week;

[0010] The capacity-price calculation module establishes a quotation model for interruptible load trading and uses a nonlinear programming solver to solve the quotation model to obtain the capacity and price reported to the trading system;

[0011] The market declaration module obtains the declared capacity and declared price from the capacity-price calculation module, and submits transaction declarations to the trading system in combination with the demand response load resource combination information.

[0012] Preferably, the capacity-price calculation module establishes a quotation model for interruptible load trading, and solves the quotation model using a nonlinear programming solver to obtain the capacity and price reported to the trading system, including:

[0013] S1. Flexible load classification and regulation cost analysis;

[0014] S2. Setting constraints for the quotation model;

[0015] S3, determining the objective function of the quotation model;

[0016] S4. Use a nonlinear programming solver to solve the quantity quotation model to obtain the capacity and price reported to the trading system.

[0017] Preferably, the flexible load classification and regulation cost analysis in S1 includes:

[0018] The operating characteristics of the loads in buildings determine the control methods and costs of participating in demand response. In order to finely reflect the control costs of different types of loads and declare reasonable prices, the loads in buildings are divided into non-lossy transferable loads, lossy transferable loads and lossy curtailable loads.

[0019] Lossless transferable load refers to transferring the inherent load energy demand in a certain period to other periods, which will not cause a decrease in user energy consumption experience. Therefore, the regulation cost of lossless transferable load mainly comes from the change in energy consumption cost:

[0020]

[0021] Among them, c i,1 is the control cost of lossless transferable load of the i-th building, is the electricity price of the interruptible load of the i-th building during the trading period, is the initial energy consumption period electricity price of the lossless transferable load of the i-th building, Q i,1 is the transfer load capacity of the lossless transferable load of the i-th building;

[0022] Lossy transferable load refers to the transfer of inherent load energy demand in a certain period to other periods, which will lead to a decrease in user energy experience. Therefore, the regulation cost of lossy transferable load includes not only the change in energy cost, but also the additional loss cost of decreased energy experience:

[0023]

[0024] Among them, c i,2 is the control cost of lossless transferable load of the i-th building, is the initial energy consumption period electricity price of the lossy transferable load of the i-th building, λ i,2is the cost coefficient of energy experience loss caused by the lossy transferable load transfer of the i-th building unit load capacity, Q i,2 is the transfer load capacity of the i-th building’s detrimental transferable load;

[0025] Lossy and curtailable load refers to the reduction of all or part of the inherent load energy demand in a certain period of time. The reduced electricity does not need to be or cannot be consumed again in other periods. Since the load energy demand is reduced, lossy and curtailable load usually leads to a more serious decline in energy experience. Therefore, the regulation cost of lossy and curtailable load is the additional loss cost of the decline in energy experience minus the cost of saving electricity reduction:

[0026]

[0027] Among them, c i,3 is the control cost of the i-th building’s lossy load reduction, λ i,3 is the cost coefficient of energy experience loss caused by the reduction of load capacity of the i-th building unit, Q i,3 is the load reduction capacity of the i-th building that is detrimental to the load reduction.

[0028] Preferably, the constraint conditions of the quotation model are set in S2, including:

[0029] For lossless transferable loads, the regulation cost has been incurred regardless of whether it is called during the demand period. Therefore, the declared capacity and price of lossless transferable loads must meet the following conditions:

[0030]

[0031] Among them, Q i,1 、p i,1 are the control capacity and control price of the lossless transferable load of the i-th building, respectively, dis is the reserve price ratio coefficient, is the maximum control capacity of the lossless transferable load of the i-th building;

[0032] For lossy transferable loads, regulation costs are incurred only when they are called, so the declared capacity and declared price of lossy transferable loads need to meet the following conditions:

[0033]

[0034] Among them, Q i,2 、p i,2 are the control capacity and control price of the lossy transferable load of the i-th building, is the maximum control capacity of the lossy transferable load of the i-th building;

[0035] For lossy curtailable loads, regulation costs are incurred only when they are called, so the declared capacity and declared price of lossy curtailable loads need to meet the following conditions:

[0036]

[0037] Among them, Q i,3 、p i,3 are the control capacity and control price of the load reduction of the i-th building, is the maximum control capacity of the load that can be reduced due to damage to the i-th building;

[0038] At the same time, the declared prices of all types of loads must meet the market price constraints:

[0039] p min ≤p i,1 ≤p max ;

[0040] p min ≤p i,2 ≤p max ;

[0041] p min ≤p i,3 ≤p max ;

[0042] Among them, p min 、p max They are the minimum and maximum transaction quotes respectively.

[0043] Preferably, determining the objective function of the quotation model in S3 includes:

[0044] S31. In interruptible load trading, subsidy income includes reserve income and call income. Reserve income refers to the income obtained from the capacity that has not been called by the dispatch center in the bid-winning capacity. The reserve income of the building virtual power plant is calculated as follows:

[0045]

[0046] in, For the reserve income of building virtual power plants, is a 0-1 variable indicating whether the mth type of load in the building virtual power plant is called, 0 represents not called, 1 represents called, is a 0-1 variable indicating whether the m-th type of load of the building virtual power plant has been cleared and won the bid, 0 represents not being cleared and won the bid, 1 represents being cleared and won the bid, p clr The market clearing price, The declared capacity of the mth type of load for the building virtual power plant, Q i,mis the control capacity of the mth type of load in the i-th building, n is the number of buildings, m is 1 for lossless transferable load, m is 2 for lossy transferable load, and m is 3 for lossy curtailable load;

[0047] S32. The call revenue refers to the revenue obtained from the capacity called by the dispatch center during the demand period. The call revenue of the building virtual power plant is calculated as:

[0048]

[0049] in, Profits from using the building’s virtual power plant;

[0050] S33. Calculate the control cost of the building virtual power plant:

[0051]

[0052] Among them, C vpp is the control cost of the building virtual power plant, c i,m is the control cost of the mth type of load in the ith building;

[0053] S34. Calculate the total revenue of the building virtual power plant:

[0054]

[0055] Among them, S vpp is the total revenue of the building virtual power plant, The declared price for the mth type of load of the building virtual power plant;

[0056] S35. Determine the objective function of the quotation model:

[0057] F obj =max(S vpp );

[0058] Among them, F obj It is the objective function of the quotation model.

[0059] Preferably, the market clearing price is obtained by predicting the frequency of different clearing prices based on the interruptible load clearing information of the operating week disclosed by the trading system to the market entities stored in the data storage module;

[0060] Among them, the interruptible load clearing information includes the interruptible load winning capacity and clearing price.

[0061] Preferably, the interruptible load demand information received by the scheduling demand information receiving module includes demand capacity, demand period and demand area.

[0062] (III) Beneficial effects

[0063] Compared with the prior art, the quotation system for a building virtual power plant participating in interruptible load trading provided by the present invention has the following beneficial effects:

[0064] 1) Divide the loads in the building into non-lossy transferable loads, lossy transferable loads and lossy reducible loads, and calculate the control cost using corresponding methods according to the characteristics of different types of loads, so as to achieve refined management of different types of loads and calculation of control costs, and ensure the rationality of declared capacity and declared price;

[0065] 2) Combining the regulation cost of building users and the profit calculation method of building virtual power plants, it not only guarantees the profits of both load aggregators and building users, but also drives the decision-making of both parties in quotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0066] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0067] Figure 1 It is a schematic diagram of the system of the present invention;

[0068] Figure 2 The present invention is a flow chart of establishing a quotation model for interruptible load trading and solving the quotation model. DETAILED DESCRIPTION

[0069] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0070] A quotation system for building virtual power plants to participate in interruptible load trading, such as Figure 1 As shown, it includes a scheduling demand information receiving module, a data storage module, a capacity-price calculation module and a market declaration module;

[0071] The dispatch demand information receiving module receives the interruptible load demand information of the operation week (W week) released by the dispatch center to the market entities through the trading system;

[0072] A data storage module stores the interruptible load demand information in the dispatch demand information receiving module, and the interruptible load clearing information disclosed by the trading system to the market entities during the operation week;

[0073] The capacity-price calculation module establishes a quotation model for interruptible load trading and uses a nonlinear programming solver to solve the quotation model to obtain the capacity and price reported to the trading system;

[0074] The market declaration module obtains the declared capacity and declared price from the capacity-price calculation module, and submits transaction declarations to the trading system in combination with the demand response load resource combination information.

[0075] The capacity-price calculation module establishes a quotation model for interruptible load transactions, and uses a nonlinear programming solver to solve the quotation model to obtain the capacity and price reported to the trading system, such as Figure 2 As shown, including:

[0076] S1. Flexible load classification and regulation cost analysis;

[0077] S2. Setting constraints for the quotation model;

[0078] S3, determining the objective function of the quotation model;

[0079] S4. Use a nonlinear programming solver to solve the quantity quotation model to obtain the capacity and price reported to the trading system.

[0080] Specifically, the classification and regulation cost analysis of flexible loads in S1 includes:

[0081] The operating characteristics of the loads in buildings determine the control methods and costs of participating in demand response. In order to finely reflect the control costs of different types of loads and declare reasonable prices, the loads in buildings are divided into non-lossy transferable loads, lossy transferable loads and lossy curtailable loads.

[0082] 1) Lossless transferable load refers to transferring the inherent load energy demand in a certain period to other periods, which will not cause a decrease in user energy consumption experience (such as energy storage equipment load). Therefore, the regulation cost of lossless transferable load mainly comes from the change in energy consumption cost:

[0083]

[0084] Among them, c i,1 is the control cost of lossless transferable load of the i-th building, is the electricity price of the interruptible load of the i-th building during the trading period, is the initial energy consumption period electricity price of the lossless transferable load of the i-th building, Q i,1is the transfer load capacity of the lossless transferable load of the i-th building;

[0085] 2) Lossy transferable load refers to the transfer of inherent load energy demand in a certain period to other periods, which will lead to a decrease in user energy experience (such as electric vehicle load). Therefore, the regulation cost of lossy transferable load includes not only the change in energy cost, but also the additional loss cost of decreased energy experience:

[0086]

[0087] Among them, c i,2 is the control cost of lossless transferable load of the i-th building, is the initial energy consumption period electricity price of the lossy transferable load of the i-th building, λ i,2 is the cost coefficient of energy experience loss caused by the lossy transferable load transfer of the i-th building unit load capacity, Q i,2 is the transfer load capacity of the i-th building’s detrimental transferable load;

[0088] 3) Lossy and curtailable load refers to the reduction of all or part of the inherent load energy demand in a certain period of time. The reduced electricity is not needed or can no longer be consumed in other periods (such as central air-conditioning load). Since the load energy demand is reduced, lossy and curtailable load usually leads to a more serious decline in energy experience. Therefore, the regulation cost of lossy and curtailable load is the additional loss cost of the decline in energy experience minus the cost of electricity saving:

[0089]

[0090] Among them, c i,3 is the control cost of the i-th building’s lossy load reduction, λ i,3 is the cost coefficient of energy experience loss caused by the reduction of load capacity of the i-th building unit, Q i,3 is the load reduction capacity of the i-th building that is detrimental to the load reduction.

[0091] Specifically, the constraints of the quotation model are set in S2, including:

[0092] 1) For lossless transferable loads, the regulation cost has been incurred regardless of whether it is called during the demand period. Therefore, the declared capacity and declared price of lossless transferable loads must meet the following conditions:

[0093]

[0094]

[0095] Among them, Q i,1 、p i,1are the control capacity and control price of the lossless transferable load of the i-th building, respectively, dis is the reserve price ratio coefficient, is the maximum control capacity of the lossless transferable load of the i-th building;

[0096] 2) For lossy transferable loads, the regulation cost is incurred only when they are called. Therefore, the declared capacity and declared price of lossy transferable loads need to meet the following conditions:

[0097]

[0098] Among them, Q i,2 、p i,2 are the control capacity and control price of the lossy transferable load of the i-th building, is the maximum control capacity of the lossy transferable load of the i-th building;

[0099] 3) For lossy curtailable loads, regulation costs are incurred only when they are called, so the declared capacity and declared price of lossy curtailable loads must meet the following conditions:

[0100]

[0101] Among them, Q i,3 、p i,3 are the control capacity and control price of the load reduction of the i-th building, is the maximum control capacity of the load that can be reduced due to damage to the i-th building;

[0102] 4) At the same time, the declared prices of all types of loads must meet the market price constraints:

[0103] p min ≤p i,1 ≤p max ;

[0104] p min ≤p i,2 ≤p max ;

[0105] p min ≤p i,3 ≤p max ;

[0106] Among them, p min 、p max They are the minimum and maximum transaction quotes respectively.

[0107] Specifically, the objective function of the quotation model is determined in S3, including:

[0108] S31. In interruptible load trading, subsidy income includes reserve income and call income. Reserve income refers to the income obtained from the capacity that has not been called by the dispatch center in the bid-winning capacity. The reserve income of the building virtual power plant is calculated as follows:

[0109]

[0110] in, For the reserve income of building virtual power plants, is a 0-1 variable indicating whether the mth type of load in the building virtual power plant is called, 0 represents not called, 1 represents called, is a 0-1 variable indicating whether the m-th type of load of the building virtual power plant has been cleared and won the bid, 0 represents not being cleared and won the bid, 1 represents being cleared and won the bid, p clr The market clearing price, The declared capacity of the mth type of load for the building virtual power plant, Q i,m is the control capacity of the mth type of load in the i-th building, n is the number of buildings, m is 1 for lossless transferable load, m is 2 for lossy transferable load, and m is 3 for lossy curtailable load;

[0111] S32. The call revenue refers to the revenue obtained from the capacity called by the dispatch center during the demand period. The call revenue of the building virtual power plant is calculated as:

[0112]

[0113] in, Profits from using the building’s virtual power plant;

[0114] S33. Calculate the control cost of the building virtual power plant:

[0115]

[0116] Among them, C vpp is the control cost of the building virtual power plant, c i,m is the control cost of the mth type of load in the ith building;

[0117] S34. Calculate the total revenue of the building virtual power plant:

[0118]

[0119] Among them, S vpp is the total revenue of the building virtual power plant, The declared price for the mth type of load of the building virtual power plant;

[0120] S35. Determine the objective function of the quotation model (since the current benefits of the load aggregator and the building user are distributed according to the contract ratio, the benefits of the building virtual power plant can be maximized while also ensuring the maximization of the benefits of the building user):

[0121] F obj =max(S vpp );

[0122] Among them, F obj It is the objective function of the quotation model.

[0123] In the technical solution of the present application, the market clearing price is obtained by predicting the frequency of different clearing prices based on the transaction system stored in the data storage module disclosing the interruptible load clearing information of the operation week to the market entities;

[0124] Among them, the interruptible load clearing information includes the interruptible load winning capacity and clearing price.

[0125] In the technical solution of the present application, the interruptible load demand information received by the scheduling demand information receiving module includes demand capacity, demand time period and demand area.

[0126] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A quotation system for a building virtual power plant to participate in interruptible load trading, characterized in that: It includes a dispatch demand information receiving module, a data storage module, a capacity-price calculation module and a market declaration module; The dispatch demand information receiving module receives the interruptible load demand information of the operation week released by the dispatch center to the market entities through the trading system; A data storage module stores the interruptible load demand information in the dispatch demand information receiving module, and the interruptible load clearing information disclosed by the trading system to the market entities during the operation week; The capacity-price calculation module establishes a quotation model for interruptible load trading and uses a nonlinear programming solver to solve the quotation model to obtain the capacity and price reported to the trading system; The market declaration module obtains the declared capacity and declared price from the capacity-price calculation module, and submits transaction declarations to the trading system in combination with the demand response load resource combination information.

2. The quotation system for building virtual power plants participating in interruptible load trading according to claim 1 is characterized in that: The capacity-price calculation module establishes a quotation model for interruptible load transactions, and uses a nonlinear programming solver to solve the quotation model to obtain the capacity and price reported to the trading system, including: S1. Flexible load classification and regulation cost analysis; S2. Setting constraints for the quotation model; S3, determining the objective function of the quotation model; S4. Use a nonlinear programming solver to solve the quantity quotation model to obtain the capacity and price reported to the trading system.

3. The quotation system for building virtual power plants participating in interruptible load trading according to claim 2 is characterized in that: Flexible load classification and regulation cost analysis in S1, including: The operating characteristics of the loads in buildings determine the control methods and costs of participating in demand response. In order to finely reflect the control costs of different types of loads and declare reasonable prices, the loads in buildings are divided into non-lossy transferable loads, lossy transferable loads and lossy curtailable loads. Lossless transferable load refers to transferring the inherent load energy demand in a certain period to other periods, which will not cause a decrease in user energy consumption experience. Therefore, the regulation cost of lossless transferable load mainly comes from the change in energy consumption cost: Among them, c i,1 is the control cost of the lossless transferable load of the i-th building, is the electricity price during the trading period for the interruptible load of the i-th building, is the initial energy consumption period electricity price of the lossless transferable load of the i-th building, Q i,1 is the transfer load capacity of the lossless transferable load of the i-th building; Lossy transferable load refers to the transfer of inherent load energy demand in a certain period to other periods, which will lead to a decrease in user energy experience. Therefore, the regulation cost of lossy transferable load includes not only the change in energy cost, but also the additional loss cost of decreased energy experience: Among them, c i,2 is the control cost of the lossless transferable load of the i-th building, is the initial energy consumption period electricity price of the lossy transferable load of the i-th building, λ i,2 is the cost coefficient of energy experience loss caused by the lossy transferable load transfer of the i-th building unit load capacity, Q i,2 is the transfer load capacity of the i-th building’s detrimental transferable load; Lossy and curtailable load refers to the reduction of all or part of the inherent load energy demand in a certain period of time. The reduced electricity does not need to be or cannot be consumed again in other periods. Since the load energy demand is reduced, lossy and curtailable load usually leads to a more serious decline in energy experience. Therefore, the regulation cost of lossy and curtailable load is the additional loss cost of the decline in energy experience minus the cost of saving electricity reduction: Among them, c i,3 is the control cost of the i-th building’s lossy load reduction, λ i,3 is the cost coefficient of energy experience loss caused by the reduction of load capacity of the i-th building unit, Q i,3 is the load reduction capacity of the i-th building that is detrimental to the load reduction.

4. The quotation system for building virtual power plants participating in interruptible load trading according to claim 3 is characterized in that: The constraints of the quotation model are set in S2, including: For lossless transferable loads, the regulation cost has been incurred regardless of whether it is called during the demand period. Therefore, the declared capacity and price of lossless transferable loads must meet the following conditions: Among them, Q i,1 、p i,1 are the control capacity and control price of the lossless transferable load of the i-th building, respectively, dis is the reserve price ratio coefficient, is the maximum control capacity of the lossless transferable load of the i-th building; For lossy transferable loads, regulation costs are incurred only when they are called, so the declared capacity and declared price of lossy transferable loads need to meet the following conditions: Among them, Q i,2 、p i,2 are the control capacity and control price of the lossy transferable load of the i-th building, is the maximum control capacity of the lossy transferable load of the i-th building; For lossy curtailable loads, regulation costs are incurred only when they are called, so the declared capacity and declared price of lossy curtailable loads need to meet the following conditions: Among them, Q i,3 、p i,3 are the control capacity and control price of the load reduction of the i-th building, is the maximum control capacity of the load that can be reduced due to damage to the i-th building; At the same time, the declared prices of all types of loads must meet the market price constraints: p min ≤p i,1 ≤p max ; p min ≤p i,2 ≤p max ; p min ≤p i,3 ≤p max ; Among them, p min 、p max They are the minimum and maximum transaction quotes respectively.

5. The quotation system for building virtual power plants participating in interruptible load trading according to claim 4 is characterized in that: The objective function of the quotation model is determined in S3, including: S31. In interruptible load trading, subsidy income includes reserve income and call income. Reserve income refers to the income obtained from the capacity that has not been called by the dispatch center in the bid-winning capacity. The reserve income of the building virtual power plant is calculated as follows: in, For the reserve income of building virtual power plants, is a 0-1 variable indicating whether the mth type of load in the building virtual power plant is called, 0 represents not called, 1 represents called, is a 0-1 variable indicating whether the m-th type of load of the building virtual power plant has been cleared and won the bid, 0 represents not being cleared and won the bid, 1 represents being cleared and won the bid, p clr The market clearing price, The declared capacity of the mth type of load for the building virtual power plant, Q i,m is the control capacity of the mth type of load in the i-th building, n is the number of buildings, m is 1 for lossless transferable load, m is 2 for lossy transferable load, and m is 3 for lossy curtailable load; S32. The call revenue refers to the revenue obtained from the capacity called by the dispatch center during the demand period. The call revenue of the building virtual power plant is calculated as: in, Profits from using the building’s virtual power plant; S33. Calculate the control cost of the building virtual power plant: Among them, C vpp is the control cost of the building virtual power plant, c i,m is the control cost of the mth type of load in the ith building; S34. Calculate the total revenue of the building virtual power plant: Among them, S vpp is the total revenue of the building virtual power plant, The declared price for the mth type of load of the building virtual power plant; S35. Determine the objective function of the quotation model: F obj =max(S vpp ); Among them, F obj It is the objective function of the quotation model.

6. The quotation system for building virtual power plants participating in interruptible load trading according to claim 5 is characterized in that: The market clearing price is obtained by predicting the frequency of different clearing prices based on the interruptible load clearing information disclosed to market entities during the operation week by the trading system stored in the data storage module; Among them, the interruptible load clearing information includes the interruptible load winning capacity and clearing price.

7. The quotation system for building virtual power plants participating in interruptible load trading according to claim 1 is characterized in that: The interruptible load demand information received by the dispatch demand information receiving module includes demand capacity, demand period and demand area.

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