Virtual power plant hierarchical settlement method and system considering contribution degree and storage medium

Abstract

A virtual power plant hierarchical settlement method and system considering contribution degree and a storage medium, the method comprising: establishing a virtual power plant hierarchical settlement framework, the virtual power plant hierarchical settlement framework comprising a settlement framework of a virtual power plant and a power grid company and a settlement framework of aggregated resources inside the virtual power plant; establishing a virtual power plant settlement basis, the virtual power plant settlement basis comprising a settlement basis of distributed power sources and a settlement basis of adjustable loads; obtaining a virtual power plant settlement contribution degree according to the virtual power plant settlement basis; and performing hierarchical settlement under the virtual power plant hierarchical settlement framework and in combination with the virtual power plant settlement contribution degree to obtain a settlement result of the power grid company to the virtual power plant and a settlement result of the virtual power plant to the internal distributed power sources and adjustable loads in a peak regulation scenario. The present application considers the contribution degree of internal resources to perform hierarchical settlement of the virtual power plant, enhances effective interaction of the virtual power plant, realizes integrated utilization of the internal resources, and improves resource utilization rate of the virtual power plant.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of power market dispatching transactions, and particularly relates to a virtual power plant hierarchical settlement method considering contribution degree, a system and a storage medium. BACKGROUND

[0002] Under the "double carbon" target, the proportion of new energy in the power system is increasing, and it is required to fully tap the system regulation capacity in view of the volatility and unpredictability of new energy. At the same time, with the vigorous development of information technology, the power grid is upgraded to an energy internet, and a large number of low-capacity distributed energy sources are widely connected in the energy internet, bringing great challenges to the safe operation of the power grid.

[0003] Virtual power plants are used to aggregate and optimize DERs such as DGs, energy storage systems, controllable loads, and electric vehicles, and participate in power market and grid operation as a special power plant. On the one hand, virtual power plants can improve and enrich system regulation capacity as the proportion of new energy generation increases, and on the other hand, as a typical management method of distributed energy sources, virtual power plants can improve the overall management and control capacity of distributed energy sources through optimization and aggregation, and improve the overall economic efficiency and competitiveness of distributed energy sources in the power market. In recent years, with the continuous advancement of power system reform, new breakthroughs have been made in the construction of the power market, and a complete power market system including medium and long-term transactions, spot markets, and ancillary service markets is gradually being formed and continuously improved. The decisive role of the market in resource allocation will become increasingly prominent. Unlike planned and mandatory instruction methods, virtual power plants participate in system regulation through market-oriented methods, which can better tap the potential of virtual power plant resource allocation. China's market construction has achieved preliminary results, and market transaction varieties have gradually become richer and more perfect, but in the face of emerging market participants such as virtual power plants, coordination between multi-level market operators and virtual power plants in market organization, transactions, and system regulation needs to be addressed.

[0004] The existing green certificate transaction mechanism encourages the production enthusiasm of the virtual power plant, promotes the virtual power plant to make full use of resources, and greatly optimizes the resource allocation between virtual power plants; the carbon transaction mechanism reduces the carbon emission of the virtual power plant and saves the required carbon emission cost, and in addition, the prior art has carried out a large amount of research on the operation cost, carbon emission cost and overall benefit of the virtual power plant in view of the carbon emission price. The existing research mostly considers the cost composition of the virtual power plant, or the characteristics of the internal resources, or the degree of clean energy consumption, but less considers the settlement profit distribution scheme of the virtual power plant itself. However, the virtual power plant can participate in the long-term market, spot market, auxiliary service market and demand response market as a whole, and the internal resources such as distributed power supply, energy storage and adjustable load are considered in view of the physical and economic characteristics of the internal resources, the power generation and consumption curve is optimized and coordinated, the benefit is distributed and conducted based on the value contribution, and the research on the whole process system of the virtual power plant settlement and the settlement profit distribution method of the virtual power plant is less involved.

[0005] Therefore, in the case of profitability of the virtual power plant, how to design a business model to realize the profit space involves how to participate in the market "externally" and attract flexible resources "internally", and there is no mature and effective virtual power plant settlement scheme at present. SUMMARY

[0006] The purpose of the present application is to provide a virtual power plant hierarchical settlement method and system considering contribution degree and a storage medium, which considers the contribution degree of the dispersed resources in the virtual power plant resource layer, performs hierarchical settlement of the virtual power plant layer, enhances the effective interaction of the virtual power plant, realizes integrated utilization of the internal resources of the virtual power plant, and improves the resource utilization rate of the virtual power plant.

[0007] In order to achieve the above purpose, the present application has the following technical solutions:

[0008] In the first aspect, a virtual power plant hierarchical settlement method considering contribution degree is provided, comprising the following steps:

[0009] Establishing a virtual power plant hierarchical settlement framework;

[0010] Establishing a virtual power plant settlement basis;

[0011] According to the virtual power plant settlement basis, the virtual power plant settlement contribution degree is obtained;

[0012] Under the virtual power plant hierarchical settlement framework, hierarchical settlement is carried out in combination with the virtual power plant settlement contribution degree, and the settlement results of the power grid company to the virtual power plant and the settlement results of the virtual power plant to the internal distributed power supply and adjustable load in the peak regulation scenario are obtained.

[0013] As a preferred scheme of the virtual power plant hierarchical settlement method considering contribution degree of the application, in the step of establishing the virtual power plant hierarchical settlement framework, the established virtual power plant hierarchical settlement framework comprises a dispatching transaction layer, a virtual power plant layer and a resource layer; the virtual power plant layer is connected with the dispatching transaction layer and the resource layer as an intermediate layer; the virtual power plant layer performs settlement with the power grid company through the dispatching transaction layer and outputs settlement data; and the virtual power plant layer interacts with the resource layer below and collects resource execution power to publish resource settlement information and perform settlement with users under the jurisdiction.

[0014] Further, in the step of establishing the virtual power plant hierarchical settlement framework, the established virtual power plant hierarchical settlement framework comprises a virtual power plant and a power grid company settlement framework, which is a settlement framework between the virtual power plant layer and the dispatching transaction layer, and the specific structure of the settlement framework between the virtual power plant layer and the dispatching transaction layer is as follows:

[0015] On the dispatching transaction layer, the power dispatching center publishes demand to the transaction center, the transaction center publishes opening information data to the virtual power plant layer through the dispatching transaction layer, the virtual power plant layer transmits data to the upper dispatching transaction layer after declaring response amount, and the transaction platform clears the result, and the transaction platform sends the clearing result to the power dispatching center for power dispatching; the virtual power plant layer adjusts the charge-discharge curve according to the dispatching instruction issued by the power dispatching center, measures and reports the execution power to the power dispatching center, the power dispatching center generates a dispatching instruction and synchronizes it to the transaction platform, the transaction platform obtains the wholesale market settlement result data, and the result of the wholesale market settlement is transmitted to the virtual power plant layer and the power grid company.

[0016] Further, in the step of establishing the virtual power plant hierarchical settlement framework, the established virtual power plant hierarchical settlement framework comprises a virtual power plant internal aggregated resource settlement framework, which is a settlement framework between the virtual power plant layer and the resource layer, and the specific structure of the settlement framework between the virtual power plant layer and the resource layer is as follows:

[0017] On the resource layer, the virtual power plant layer issues market demand information to the dispersed resources of the resource layer, the dispersed resources report related data of adjustment capacity, the virtual power plant layer integrates the dispersed resource declaration data, and then performs wholesale market bidding through the transaction platform of the dispatching transaction layer, and decomposes the wholesale market bid-winning result to the dispersed resources; the dispersed resources correspondingly execute the charge-discharge curve adjustment, the dispersed resources perform power generation and power utilization control according to the charge-discharge curve and the adjustment curve, after the power generation and power utilization execution, the dispersed resources report data, and the virtual power plant layer performs secondary settlement and issues the settlement result to the dispersed resources.

[0018] As a preferred scheme of the virtual power plant hierarchical settlement method considering contribution degree, in the virtual power plant hierarchical settlement framework, the settlement results of the power grid company to the virtual power plant and the settlement results of the virtual power plant to the internal distributed power and adjustable load in the peak regulation scene are obtained by combining the virtual power plant settlement contribution degree, and in the step of the peak regulation scene, the virtual power plant layer is regulated at t-n time to t time, the peak regulation command at t time is accepted at t-n time, at a certain time between t-n time and t time, the charging and discharging curve reported by the distributed resource in the resource layer is adjusted by the virtual power plant layer, the baseline of the distributed resource in the resource layer at each time is superimposed, the virtual power plant layer baseline is obtained, and the actual output data of the resource is superimposed to obtain the actual output curve of the virtual power plant layer.

[0019] Further, the combination of the settlement contribution degree of the virtual power plant layer for hierarchical settlement refers to that after the peak regulation is over, the external wholesale market settlement result output by the transaction platform in the dispatching transaction layer is output by the virtual power plant layer, the distributed resource in the resource layer is settled through the settlement basis, the contribution degree of each resource is calculated, and each resource is settled in proportion.

[0020] As a preferred scheme of the virtual power plant hierarchical settlement method considering contribution degree, in the step of establishing the virtual power plant settlement basis, the established virtual power plant settlement basis includes the settlement basis of the distributed power and the settlement basis of the adjustable load; wherein, the calculation expression of the settlement basis of the distributed power is as follows:

[0021]

[0022] The calculation expression of the settlement basis of the adjustable load is as follows:

[0023]

[0024] In the formula, S p represents the settlement value of the distributed power as a whole; S f represents the settlement value of the adjustable load as a whole;

[0025] R t is the clearing price at t time, I t is the incentive coefficient at t time;

[0026] At t time, the actual response rate is represented as:

[0027] η t = X t / Y t × 100%

[0028] The actual response amount of the user is represented as:

[0029] Xt = |L t -B t |

[0030] wherein: η t is the actual response rate at time t; X t is the actual response amount of the user at time t; Y t is the declared response capacity at time t;

[0031] L t is the average power of the user response period at time t; B t is the baseline average power at time t.

[0032] Further, the calculation expression of the incentive coefficient at time t is:

[0033] I t = contribution degree of promoting new energy consumption or contribution degree of reducing user comprehensive cost;

[0034] The incentive coefficient is divided into contribution degree of promoting new energy consumption or contribution degree of reducing user comprehensive cost according to source load, and the contribution degree of promoting new energy consumption and the contribution degree of reducing user comprehensive cost are calculated by the method of marginal contribution weighted average.

[0035] Further, in the step of obtaining the virtual power plant settlement contribution degree, at time t, the virtual power plant settlement contribution degree is obtained by the following calculation expression:

[0036]

[0037] wherein: is the total response amount of the resource S in all periods; is the actual demand response amount.

[0038] In a second aspect, a virtual power plant hierarchical settlement system considering contribution degree is provided, comprising:

[0039] A hierarchical settlement framework establishment module is configured to establish a virtual power plant hierarchical settlement framework.

[0040] A settlement basis establishment module is configured to establish a virtual power plant settlement basis.

[0041] A settlement contribution degree acquisition module is configured to obtain a virtual power plant settlement contribution degree according to the virtual power plant settlement basis.

[0042] A hierarchical settlement module is configured to perform hierarchical settlement under the virtual power plant hierarchical settlement framework, in combination with the virtual power plant settlement contribution degree, to obtain a settlement result of a power grid company to the virtual power plant and a settlement result of the virtual power plant to internal distributed power sources and adjustable loads in a peak shaving scenario.

[0043] As a preferred scheme of the virtual power plant hierarchical settlement system considering contribution degree, the virtual power plant hierarchical settlement framework established by the hierarchical settlement framework establishment module comprises a dispatching transaction layer, a virtual power plant layer and a resource layer; the virtual power plant layer as an intermediate layer is connected with the dispatching transaction layer and the resource layer respectively, wherein the virtual power plant layer settles with the power grid company through the dispatching transaction layer and outputs settlement data; and the virtual power plant layer interacts with the resource layer below and collects resource execution power to publish resource settlement information and settle with users under jurisdiction.

[0044] Further, the virtual power plant hierarchical settlement framework established by the hierarchical settlement framework establishment module comprises a virtual power plant and power grid company settlement framework, which is a settlement framework between the virtual power plant layer and the dispatching transaction layer, and the specific structure of the settlement framework between the virtual power plant layer and the dispatching transaction layer is as follows:

[0045] On the dispatching transaction layer, the power dispatching center publishes demand to the transaction center, the transaction center publishes opening information data to the virtual power plant layer through the dispatching transaction layer, the virtual power plant layer transmits data to the upper dispatching transaction layer after declaring response amount, and the transaction platform clears up after clearing up, and the transaction platform sends the clearing result to the power dispatching center for power dispatching; the virtual power plant layer adjusts the charge-discharge curve according to the dispatching instruction issued by the power dispatching center, measures and reports the execution power to the power dispatching center, the power dispatching center generates a dispatching instruction and synchronizes to the transaction platform, the transaction platform obtains the wholesale market settlement result data, and the result of the wholesale market settlement is transmitted to the virtual power plant layer and the power grid company.

[0046] Further, the virtual power plant hierarchical settlement framework established by the hierarchical settlement framework establishment module comprises a virtual power plant internal aggregated resource settlement framework, which is a settlement framework between the virtual power plant layer and the resource layer, and the specific structure of the settlement framework between the virtual power plant layer and the resource layer is as follows:

[0047] On the resource layer, the virtual power plant layer issues market demand information to the dispersed resources of the resource layer, the dispersed resources report adjustment capability related data, the virtual power plant layer integrates the dispersed resource declaration data, and then performs wholesale market bidding through the transaction platform of the dispatching transaction layer, and decomposes the wholesale market bid-winning result to the dispersed resources, the dispersed resources correspondingly execute the charge-discharge curve adjustment, the dispersed resources perform power generation and power utilization control according to the charge-discharge curve and the adjustment curve, after the power generation and power utilization execution, the dispersed resources report data, and the virtual power plant layer performs secondary settlement and issues the settlement result to the dispersed resources.

[0048] As a preferred scheme of the virtual power plant hierarchical settlement system considering contribution degree, the hierarchical settlement module is used for obtaining the settlement result of the power grid company to the virtual power plant and the settlement result of the virtual power plant to the internal distributed power and adjustable load in the peak regulation scene, the peak regulation scene is that the virtual power plant layer performs peak regulation from t-n time to t time, accepts the peak regulation command at t time at t-n time, adjusts the charge-discharge curve reported by the distributed resource in the resource layer at a certain time between t-n time and t time, superimposes the baseline of the distributed resource in the resource layer at each time to obtain the baseline of the virtual power plant layer, and superimposes the actual output data of the resource to obtain the actual output curve of the virtual power plant layer.

[0049] Further, the hierarchical settlement module combines the settlement contribution degree of the virtual power plant layer to perform hierarchical settlement, that is, after the peak regulation ends, the virtual power plant layer performs settlement on the distributed resource in the resource layer through the settlement basis according to the external wholesale market settlement result output by the transaction platform in the dispatching transaction layer, calculates the contribution degree of each resource, and performs settlement on each resource in proportion.

[0050] As a preferred scheme of the virtual power plant hierarchical settlement system considering contribution degree, the settlement basis establishment module comprises a distributed power settlement basis calculation module and an adjustable load settlement basis calculation module.

[0051] The calculation expression used by the distributed power settlement basis calculation module is as follows:

[0052]

[0053] The calculation expression used by the adjustable load settlement basis calculation module is as follows:

[0054]

[0055] In the formula, S p represents the settlement value of the distributed power as a whole; S f represents the settlement value of the adjustable load as a whole;

[0056] R t is the clearing price at t time, I t is the incentive coefficient at t time;

[0057] At t time, the actual response rate is represented as:

[0058] η t =X t / Y t ×100%

[0059] The actual response amount of the user is represented as:

[0060] Xt = |L t -B t |

[0061] wherein: η t is the actual response rate at time t; X t is the actual response amount of users at time t; Y t is the declared response capacity at time t;

[0062] L t is the average power in the user response period at time t; B t is the baseline average power at time t.

[0063] Further, the calculation expression of the incentive coefficient at time t is:

[0064] I t = contribution degree of promoting new energy consumption or contribution degree of reducing user comprehensive cost;

[0065] The incentive coefficient is divided into contribution degree of promoting new energy consumption or contribution degree of reducing user comprehensive cost according to source load, and the contribution degree of promoting new energy consumption and the contribution degree of reducing user comprehensive cost are calculated by the method of marginal contribution weighted average.

[0066] Further, the calculation expression of the virtual power plant settlement contribution degree acquisition module for obtaining the settlement contribution degree of the virtual power plant layer at time t is as follows:

[0067]

[0068] wherein: is the total response amount of resource S in all periods; is the actual demand response amount.

[0069] In the third aspect, a computer readable storage medium is provided, and the computer readable storage medium stores a computer program, and the computer program is executed by a processor to realize the contribution degree considered virtual power plant hierarchical settlement method.

[0070] Compared with the prior art, the first aspect of the present application has at least the following beneficial effects:

[0071] By establishing the hierarchical settlement framework of the virtual power plant, the linkage relationship between the virtual power plant and the power grid company and the aggregated resources inside the virtual power plant and the influencing factors when the internal resources participate in the response of the virtual power plant can be clearly defined. By establishing the settlement basis of the virtual power plant, the settlement amount of the internal distributed power and the adjustable load when the virtual power plant settles can be clearly defined, the management capability inside the virtual power plant can be improved, and the settlement process can be simplified. By obtaining the settlement contribution degree of the virtual power plant, the contribution degree of each resource inside the virtual power plant when participating in the response can be clearly defined, so that the selection of the resources of the virtual power plant in the next time can be optimized. The application proposes a hierarchical settlement method of the virtual power plant considering the contribution degree, which is applied to the analysis in the peak shaving scene of the virtual power plant, is beneficial to verify the feasibility and effectiveness of the hierarchical settlement method of the virtual power plant, is beneficial to the effective interaction between the virtual power plant and the power grid company, the integrated utilization of the internal resources, the improvement of the resource utilization rate of the virtual power plant, and has good popularization and implementation prospect.

[0072] It can be understood that the beneficial effects of the second aspect to the third aspect can be referred to the related description in the first aspect, which will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0073] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0074] Figure 1 The hierarchical settlement framework diagram of the virtual power plant considering the contribution degree in embodiment 1 of the present application is shown in the figure.

[0075] Figure 2 The data transmission flowchart of the virtual power plant layer and the dispatching transaction layer in embodiment 1 of the present application is shown in the figure.

[0076] Figure 3 The data transmission flowchart of the virtual power plant layer and the distributed resources of the resource layer in embodiment 1 of the present application is shown in the figure.

[0077] Figure 4 The virtual power plant layer participates in the peak shaving scene in embodiment 1 of the present application is shown in the figure.

[0078] Figure 5 The internal resource baseline diagram of the virtual power plant layer in embodiment 2 of the present application is shown in the figure.

[0079] Figure 6 The dispatching data planning diagram of the distributed resources of the resource layer in embodiment 2 of the present application is shown in the figure.

[0080] Figure 7A practical response data result graph of the resource layer of the embodiment 2 of the present application dispersing resources;

[0081] Figure 8 A structure schematic diagram of the hierarchical settlement system of the virtual power plant of the embodiment 3 of the present application. DETAILED DESCRIPTION

[0082] In the following description, specific details are set forth, such as particular system configurations, techniques, etc., in order to provide a thorough understanding of the embodiments of the present application. However, persons skilled in the art will understand that the present application can be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.

[0083] In addition, in the description of the present application and the appended claims, the terms "first", "second", "third", etc. are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.

[0084] Embodiment 1

[0085] The present application proposes a hierarchical settlement method of a virtual power plant, comprising the following steps:

[0086] Step 1, establishing a hierarchical settlement framework of a virtual power plant;

[0087] Step 2, establishing a settlement basis of a virtual power plant;

[0088] Step 3, obtaining a settlement contribution degree of a virtual power plant according to the settlement basis of the virtual power plant;

[0089] Step 4, under the hierarchical settlement framework of the virtual power plant, combining the settlement contribution degree of the virtual power plant to perform hierarchical settlement, and obtaining a settlement result of a power grid company to the virtual power plant and a settlement result of the virtual power plant to internal distributed power sources and adjustable loads in a peak regulation scenario.

[0090] Please refer to Figure 1 In step 1 of the present application, the hierarchical settlement framework of the virtual power plant is divided into three layers, which are a dispatching transaction layer, a virtual power plant layer and a resource layer. The virtual power plant layer is an intermediate layer, which settles with the power grid company through a transaction platform and outputs settlement data on the upper side, and performs data interaction with the resource layer on the lower side to collect resource execution power and then publish resource settlement information to settle with users under its jurisdiction. In step 1, the established hierarchical settlement framework of the virtual power plant includes a settlement framework of the virtual power plant and the power grid company and a settlement framework of internal aggregated resources of the virtual power plant. The settlement framework of the virtual power plant and the power grid company is a settlement framework between the virtual power plant layer and the dispatching transaction layer, and the settlement framework of the internal aggregated resources of the virtual power plant is a settlement framework between the virtual power plant layer and the resource layer.

[0091] 1.1 Settlement framework of dispatching transaction layer and virtual power plant

[0092] On the dispatching transaction layer, the power dispatching center issues demand to the transaction center, the transaction center issues opening information data to the virtual power plant layer through the dispatching transaction layer, the virtual power plant layer reports response amount to the upper layer dispatching transaction layer, and transmits data to the upper layer, and clears through the transaction platform, and the transaction platform sends the clearing result to the power dispatching center to participate in power dispatching; the virtual power plant layer adjusts the charging and discharging curve according to the dispatching instruction issued by the power dispatching center, and reports the execution power to the power dispatching center, and the power dispatching center generates a dispatching instruction and synchronizes to the transaction platform, the transaction platform obtains the wholesale market settlement result data, and transmits the result of the wholesale market settlement to the virtual power plant layer and the power grid company, and the specific settlement process can be referred to the schematic given in Figure 2 .

[0093] 1.2 Settlement framework of virtual power plant and aggregation resource layer

[0094] On the resource layer, the virtual power plant layer issues market demand information to the distributed resources of the resource layer, the distributed resources report the data related to the adjustment capacity, the virtual power plant layer integrates the distributed resource declaration data, and then reports the data to the transaction platform of the dispatching transaction layer for wholesale market bidding, and decomposes the winning bid result in the wholesale market to the distributed resources, the distributed resources correspondingly execute the charging and discharging curve adjustment, and perform the power generation and consumption control according to the charging and discharging curve and the adjustment curve, after the power generation and consumption are executed, the distributed resources report the data, the virtual power plant layer performs secondary settlement and issues the settlement result to the distributed resources, and the specific settlement process diagram can be referred to the schematic given in Figure 3 .

[0095] The step 2 of the present application establishes the virtual power plant settlement basis in the following manner, and the established virtual power plant settlement basis includes the settlement basis of the distributed power supply and the settlement basis of the adjustable load:

[0096] 2.1 Settlement basis of distributed power supply

[0097] At t time, the actual response rate can be represented as:

[0098] η t =X t / Y t ×100%

[0099] The actual response amount of the user can be represented as:

[0100] X t =|L t -B t |

[0101] The incentive coefficient can be represented as:

[0102] I t = contribution degree of promoting new energy consumption or contribution degree of reducing user comprehensive cost

[0103] wherein: η t is actual response rate at t moment; X t is actual response amount of user at t moment; Y t is declared response capacity at t moment; L t is average power in user response period at t moment; B t is baseline average power at t moment;

[0104] I t is incentive coefficient at t moment, the incentive coefficient is divided into contribution degree of promoting new energy consumption and contribution degree of reducing user comprehensive cost according to source load, and is calculated by marginal contribution weighted average method.

[0105] The settlement basis of the distributed power is established as follows:

[0106]

[0107] wherein: R t is clearing price at t moment.

[0108] 2.2 Settlement basis of adjustable load

[0109] The settlement basis of the adjustable load is established as follows:

[0110]

[0111] wherein: R t is clearing price at t moment.

[0112] In the embodiment of the application, the contribution degree refers to the capacity proportion of each resource in the virtual power plant participating in the power market. The virtual power plant settlement contribution degree is obtained in step 3 of the application in the following manner:

[0113] The virtual power plant settlement contribution degree index is calculated according to the ratio of the total response amount of the resource S in all periods to the actual response amount. At t moment, the settlement contribution degree of the resource S can be expressed as:

[0114]

[0115] wherein: is the total response amount of the resource S in all periods; is the actual demand response amount.

[0116] The step 4 of the application proposes a virtual power plant hierarchical settlement method considering contribution degree, and application analysis is carried out in the scene of participating in peak shaving of the virtual power plant. In the embodiment of the application, the hierarchical settlement refers to, according to the declared capacity of each distributed resource in the resource layer, after clearing through the transaction platform in the dispatching transaction layer, the transaction platform outputs the external clearing result and the virtual power plant layer carries out benefit distribution, and the resource layer carries out settlement according to the actual clearing result and the settlement basis of the distributed power supply and the adjustable load.

[0117] 4.1 Peak shaving scene

[0118] Referring to Figure 4 , the virtual power plant layer carries out peak shaving from t-n time to t time, accepts the peak shaving command at t time at t-n time, at a certain time between t-n time and t time, the virtual power plant layer adjusts the charge-discharge curve reported by the distributed resource in the resource layer, superimposes the baseline of the distributed resource in the resource layer at each time to obtain the virtual power plant layer baseline, and superimposes the actual output data of the resource to obtain the actual output curve of the virtual power plant layer.

[0119] 4.2 Settlement method considering contribution degree

[0120] After the peak shaving is ended, the virtual power plant layer carries out settlement on the distributed resource in the resource layer through the settlement basis according to the external wholesale market settlement result output by the transaction platform in the dispatching transaction layer, calculates the contribution degree of each resource in the resource layer, and carries out settlement on each resource in proportion.

[0121] 4.3 Analysis of virtual power plant hierarchical settlement result in the peak shaving scene

[0122] The settlement result of the virtual power plant layer, the dispatching transaction layer and the aggregated resource layer is analyzed in the peak shaving scene, so as to make reference for subsequent development of the settlement of typical scenes of the virtual power plant.

[0123] Embodiment 2

[0124] It is assumed in the embodiment that one VPP participates in peak shaving, the aggregated internal resource in the distributed resource is two controllable power supplies and three adjustable loads, and the adjustable capacity is 20% of the baseline of the day. The baseline of the internal resource of the VPP participating in peak shaving on the day is as shown in the table. Figure 5 It is assumed that the peak shaving demand occurs at 18-20h on the day, the peak shaving demand is 60MW, and the VPP internal resource scheduling data plan is as shown in the table. Figure 6

[0125] ​Wherein, 18-20h of load 1, 2, 3 is the peak shaving demand period, the load after the internal resource reduction of VPP. Each load resource is reduced by 20MW, a total of 60MW, at which time the VPP reaches the peak shaving demand; 9-11h of load 1, 2, 3 is the load after the rebound of the internal resource reduction of VPP in the peak shaving period, each load resource rebounds by 20MW, increasing the load of the period; 9-11h of source 1, 2 is the output of controllable power supply to reduce the rebound load, each controllable power supply increases the output by 30MW to balance the rebound load in the VPP.

[0126] Assume that the grid company's clearing price for VPP in this scenario is 1600 yuan / MWh. The VPP's clearing price for internal controllable power supply is 800 yuan / MWh, and the clearing price for internal adjustable load is 750 yuan / MWh.

[0127] The first case, if all resources respond completely according to the plan, the actual response rate η t is 100%. The actual response amount X t of the user at time t is 180MW.

[0128] Combined with the settlement basis of distributed power supply and adjustable load, the settlement of the grid company to VPP and the settlement of VPP to all internal controllable power supply and controllable load participating in peak shaving are as follows:

[0129] The settlement of the grid company to VPP is 180x1600=2988000 yuan

[0130] The settlement of VPP to all internal controllable power supply participating in peak shaving is 180x800=144000 yuan

[0131] The settlement of VPP to all internal controllable load participating in peak shaving is 180x750=135000 yuan

[0132] Considering that the contribution degrees of internal controllable power supply and adjustable load of VPP are different, the contribution degree of each resource, the specific benefit allocation is shown in Table 1.

[0133] Table 1

[0134] VPP internal resources Contribution degree Settlement fee (yuan) Source 1 50％ 72000 Source 2 50％ 72000 Load 1 33.3％ 45000 Load 2 33.3％ 45000 Load 3 33.3％ 45000

[0135] The second case, if the actual response data result of the internal distributed resource of VPP resource layer deviates from the scheduling data plan, the actual response of the internal resource of VPP is as shown in Figure 7 .

[0136] At 19h and 20h, the load 1 and the load 2 respond to 10MW, at this time the actual response is 30MW; at 10-11h, the load 1 and the load 2 respond to the rebound load; at 10-11h, the source 1 responds to 20MW to cope with the rebound load, and the actual response is 50MW.

[0137] At this time, the actual average response of the user is 220MW, the declared response capacity is 180MW, combined with the range of the actual response rate and the incentive coefficient, the settlement of the VPP by the power grid company and the settlement of all the controllable power sources and the controllable loads participating in the peak shaving by the VPP settlement module are as follows:

[0138] The actual response rate of the VPP is 220 / 180x100%=122%, and the incentive coefficient is 800yuan / MWh. The settlement of the VPP by the power grid company is:

[0139] 180x1.2x1600+(220-180x1.2)x1600x800=5465600yuan

[0140] The actual response rate of the VPP to the controllable power sources participating in the peak shaving is 220 / 180x100%=122%, and the incentive coefficient is 400yuan / MWh. The settlement of the VPP to all the controllable power sources participating in the peak shaving is:

[0141] 180x1.2x800+(220-180x1.1)x800x400=7212800yuan

[0142] The actual response rate of the VPP to the controllable power sources participating in the peak shaving is 220 / 180x100%=122%, and the incentive coefficient is 400yuan / MWh. The settlement of the VPP to all the controllable power sources participating in the peak shaving is:

[0143] 180x1.2x750+(220-180x1.2)x750x350=1212000yuan

[0144] Considering that the controllable power sources and the adjustable loads in the VPP have different contribution degrees, the specific benefit distribution corresponding to the contribution degree of each resource is shown in Table 2.

[0145] Table 2

[0146] VPP internal resources Contribution degree Settlement fee (yuan) Source 1 59％ 4255552 Source 2 41％ 2957248 Load 1 36％ 436320 Load 2 36％ 436320 Load 3 28％ 339360

[0147] The application considers the contribution degree of the virtual power plant hierarchical settlement method, establishes a virtual power plant hierarchical settlement framework, proposes the settlement of the power grid company and the virtual power plant and the settlement of the virtual power plant and the internal aggregated resources, on the basis of which, the virtual power plant settlement basis is established, the virtual power plant settlement contribution degree index is established, the virtual power plant hierarchical settlement method considering the contribution degree is proposed, and the application analysis of the virtual power plant in the peak shaving scene is realized. The verification example is based on the difference between the actual response capacity and the planned response capacity of the VPP resource layer distributed resources, the actual response rate, the settlement basis, the contribution degree and the settlement cost of the power grid company to the VPP and the VPP to the internal aggregated resources are calculated respectively, and the application of the virtual power plant hierarchical settlement method considering the contribution degree is analyzed.

[0148] The application establishes a virtual power plant hierarchical settlement framework, which is conducive to clarifying the linkage relationship between the virtual power plant and the power grid company and the internal aggregated resources of the virtual power plant and the influencing factors when the internal resources participate in the response of the virtual power plant; by establishing the settlement basis of the distributed power supply and the adjustable load in the virtual power plant, it is conducive to clarifying the settlement amount of the distributed power supply and the adjustable load in the virtual power plant, improving the management ability of the virtual power plant, and simplifying the settlement process; by obtaining the virtual power plant settlement contribution degree, it is conducive to clarifying the contribution degree of each resource in the virtual power plant participating in the response, so as to optimize the selection of resources in the next time of the virtual power plant. The application is applied in the peak shaving scene of the virtual power plant, which is conducive to verifying the feasibility and effectiveness of the virtual power plant hierarchical settlement system, facilitating the effective interaction between the virtual power plant and the power grid company, the integration and utilization of internal resources, improving the resource utilization rate of the virtual power plant, and facilitating the popularization and implementation of the hierarchical settlement system.

[0149] In summary, the virtual power plant hierarchical settlement method proposed in the application considers the contribution degree proportion of the aggregated resources, measures the benefit distribution number of the resources through the contribution degree, and can effectively solve the fuzzy problem of the hierarchical settlement of the internal resources of the virtual power plant.

[0150] Embodiment 3

[0151] Reference Figure 8 The embodiment of the application gives a virtual power plant hierarchical settlement system, which comprises:

[0152] The hierarchical settlement framework establishment module 1 is used for establishing a virtual power plant hierarchical settlement framework, and the virtual power plant hierarchical settlement framework comprises a settlement framework of the virtual power plant and the power grid company and a settlement framework of the internal aggregated resources of the virtual power plant;

[0153] The settlement basis establishment module 2 is used for establishing a virtual power plant settlement basis, and the virtual power plant settlement basis comprises a settlement basis of a distributed power supply and a settlement basis of an adjustable load;

[0154] The settlement contribution degree acquisition module 3 is configured to acquire the virtual power plant settlement contribution degree according to the virtual power plant settlement basis.

[0155] The hierarchical settlement module 4 is configured to perform hierarchical settlement under the virtual power plant hierarchical settlement framework, in combination with the virtual power plant settlement contribution degree, to obtain the settlement result of the power grid company to the virtual power plant and the settlement result of the virtual power plant to the internal distributed power source and adjustable load in the peak regulation scenario.

[0156] Further, the virtual power plant hierarchical settlement framework established by the hierarchical settlement framework establishment module 1 includes a dispatch transaction layer, a virtual power plant layer, and a resource layer. The virtual power plant layer serves as an intermediate layer, settles with the power grid company through a transaction platform on the upper side, and outputs settlement data. On the lower side, the virtual power plant layer interacts with the resource layer to collect resource execution power and publish resource settlement information to settle with users under its jurisdiction. The settlement framework between the virtual power plant and the power grid company is the settlement framework between the virtual power plant layer and the dispatch transaction layer. The settlement framework of the internal aggregated resources of the virtual power plant is the settlement framework between the virtual power plant layer and the resource layer. On the dispatch transaction layer, the power dispatch center publishes demand to the transaction center. The transaction center publishes market opening information data to the virtual power plant layer through the dispatch transaction layer. The virtual power plant layer transmits data to the upper dispatch transaction layer after declaring the response amount, and clears through the transaction platform. The transaction platform sends the clearing result to the power dispatch center for power dispatch. The virtual power plant layer adjusts the charge-discharge curve according to the dispatch instruction issued by the power dispatch center, measures and reports the execution power to the power dispatch center, the power dispatch center generates a dispatch instruction and synchronizes it to the transaction platform, the transaction platform obtains the wholesale market settlement result data, and transmits the result of the wholesale market settlement to the virtual power plant layer and the power grid company. On the resource layer, the virtual power plant layer issues market demand information to the distributed resources of the resource layer. The distributed resources report adjustment capability related data. The virtual power plant layer integrates the distributed resource declaration data, and performs wholesale market bidding through the transaction platform of the dispatch transaction layer, and decomposes the wholesale market bid-winning result to the distributed resources. The distributed resources correspondingly execute the charge-discharge curve adjustment, and perform power generation and consumption control according to the charge-discharge curve and the adjustment curve. After the power generation and consumption execution, the distributed resources report data, and the virtual power plant layer performs secondary settlement and issues the settlement result to the distributed resources.

[0157] Further, the settlement basis establishment module 2 includes a distributed power source settlement basis calculation module and an adjustable load settlement basis calculation module.

[0158] The calculation expression adopted by the distributed power source settlement basis calculation module is as follows:

[0159]

[0160] The settlement of the adjustable load is based on the calculation expression adopted by the calculation module as follows:

[0161]

[0162] In the formula, R t is the clearing price at time t, I t is the incentive coefficient at time t.

[0163] Here S p refers to the total settlement value of the VPP internal overall distributed power participating in peak regulation and frequency modulation scenarios, and the corresponding S f is the total settlement value of the VPP internal overall adjustable load participating in peak regulation and frequency modulation scenarios.

[0164] At time t, the actual response rate is represented as:

[0165] η t = X t / Y t × 100%

[0166] The actual response amount of the user is represented as:

[0167] X t = |L t -B t |

[0168] Wherein: η t is the actual response rate at time t; X t is the actual response amount of the user at time t; Y t is the declared response capacity at time t.

[0169] L t is the average power of the user within the response period at time t; B t is the baseline average power at time t.

[0170] Further, the calculation expression of the incentive coefficient at time t is:

[0171] I t = contribution degree of promoting new energy consumption or contribution degree of reducing user comprehensive cost.

[0172] The incentive coefficient is divided into contribution degree of promoting new energy consumption or contribution degree of reducing user comprehensive cost according to the source and load, and the contribution degree of promoting new energy consumption and the contribution degree of reducing user comprehensive cost are calculated by the method of marginal contribution weighted average.

[0173] The virtual power plant settlement contribution degree acquisition module adopts the following calculation expression to obtain the settlement contribution degree of the virtual power plant layer at time t:

[0174]

[0175] wherein: is the total response amount of resource S in all time periods; is the actual demand response amount.

[0176] Further, the peak regulation scenario is that the virtual power plant layer regulates the peak at t-n time to t time, accepts the peak regulation command at t-n time at t time, at a certain time between t-n time and t time, the virtual power plant layer adjusts the charging and discharging curve reported by the distributed resources in the resource layer, superimposes the baseline of each time of the distributed resources in the resource layer, obtains the virtual power plant layer baseline, and superimposes the actual output data of the resources to obtain the actual output curve of the virtual power plant layer. The hierarchical settlement module 4 combines the settlement contribution degree of the virtual power plant to perform hierarchical settlement. After the peak regulation ends, the virtual power plant layer settles the distributed resources in the resource layer through the settlement basis according to the external wholesale market settlement result output by the transaction platform in the dispatching transaction layer, and calculates the contribution degree of each kind of internal resource to settle each kind of resource in proportion.

[0177] Embodiment 4

[0178] Another embodiment of the present application provides a computer readable storage medium storing a computer program, and the computer program is executed by a processor to implement the virtual power plant hierarchical settlement method considering the contribution degree.

[0179] The computer program includes computer program code, which can be in the form of source code, object code, executable files, or some intermediate forms, etc. The computer readable storage medium can include any entity or device, medium, U disk, mobile hard disk, magnetic disk, optical disk, computer memory, read-only memory, random access memory, electrical carrier signal, telecommunication signal, and software distribution medium, etc. capable of carrying the computer program code. It should be noted that the content included in the computer readable medium can be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction, for example, in some jurisdictions, according to legislation and patent practice, the computer readable medium does not include electrical carrier signals and telecommunication signals. For the convenience of description, the above content only shows the part related to the embodiments of the present application, and the specific technical details not disclosed are referred to the method part of the embodiments of the present application. The computer readable storage medium is non-transitory and can be stored in the storage device formed by various electronic devices, and can realize the execution process recorded in the method of the embodiments of the present application.

[0180] Those skilled in the art will appreciate that embodiments of the application can be readily used as a method, a system or a computer program product. Accordingly, the application can take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the application can take the form of a computer program product on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROMs, optical storage devices, etc.) embodying computer readable program code thereon.

[0181] The present application is described in reference to the flowchart and / or block diagrams of the method, apparatus (system) and computer program product according to embodiments of the application. It will be understood that each block of the flowchart and / or block diagrams, and combinations of blocks in the flowchart and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart and / or block diagram block or blocks. Figure 1 one or more functions specified in the flowchart and / or block diagram block or blocks. Figure 1 one or more functions specified in the flowchart and / or block diagram block or blocks.

[0182] These computer program instructions can also be stored in a computer- readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instructions which implement the function specified in the flowchart and / or block diagram block or blocks. Figure 1 one or more functions specified in the flowchart and / or block diagram block or blocks. Figure 1 one or more functions specified in the flowchart and / or block diagram block or blocks.

[0183] The computer program instructions can also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer-implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart and / or block diagram block or blocks. Figure 1 one or more functions specified in the flowchart and / or block diagram block or blocks. Figure 1 one or more functions specified in the flowchart and / or block diagram block or blocks.

[0184] Finally, it should be noted that the above-mentioned embodiments are merely intended for describing and illustrating, not limiting the technical solutions of the present application. Although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that the specific embodiments of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the present application, and any modifications or equivalent replacements without departing from the spirit and scope of the present application should be covered in the protection scope of the claims of the present application.

Claims

1. A virtual power plant hierarchical settlement method considering contribution degree, characterized in that, The method comprises the following steps: a virtual power plant hierarchical settlement framework is established; a virtual power plant settlement basis is established; a virtual power plant settlement contribution degree is obtained according to the virtual power plant settlement basis; a hierarchical settlement is performed according to the virtual power plant settlement contribution degree, so that a settlement result of the power grid company to the virtual power plant and a settlement result of the virtual power plant to the internal distributed power source and the adjustable load in the peak regulation scenario are obtained; in the step of establishing the virtual power plant hierarchical settlement framework, the established virtual power plant hierarchical settlement framework comprises a dispatching transaction layer, a virtual power plant layer and a resource layer; the virtual power plant layer is connected with the dispatching transaction layer and the resource layer as an intermediate layer; the virtual power plant layer performs settlement with the power grid company through the dispatching transaction layer and outputs settlement data; and the virtual power plant layer performs data interaction with the resource layer below and collects resource execution power to publish resource settlement information and perform settlement with users under the jurisdiction of the virtual power plant layer; the hierarchical settlement according to the settlement contribution degree of the virtual power plant layer means that after the peak regulation is completed, the virtual power plant layer performs settlement on the internal distributed resources in the resource layer through the settlement basis according to the external wholesale market settlement result output by the transaction platform in the dispatching transaction layer, calculates the contribution degree of each resource and performs settlement on each resource in proportion; In the hierarchical settlement framework of the virtual power plant, the settlement results of the power grid company to the virtual power plant and the settlement results of the virtual power plant to the internal distributed power supply and adjustable load in the peak shaving scene are obtained by combining the virtual power plant settlement contribution degree, wherein the peak shaving scene is that the virtual power plant layer carries out peak shaving from the time moment to the time moment, accepts the peak shaving command from the time moment to the time moment, and adjusts the charging and discharging curve reported by the internal distributed resources of the resource layer at a certain time moment between the time moment and the time moment, superimposes the baseline of the internal distributed resources of the resource layer at each time moment to obtain the baseline of the virtual power plant layer, and superimposes the actual output data of the resources to obtain the actual output curve of the virtual power plant layer. t - n t t - n t t - n t At a certain time moment between the time moment and the time moment, the virtual power plant layer adjusts the charging and discharging curve reported by the internal distributed resources of the resource layer, superimposes the baseline of the internal distributed resources of the resource layer at each time moment to obtain the baseline of the virtual power plant layer, and superimposes the actual output data of the resources to obtain the actual output curve of the virtual power plant layer.​​​​​ in the step of establishing the virtual power plant settlement basis, the established virtual power plant settlement basis comprises a distributed power source settlement basis and an adjustable load settlement basis; the calculation expression of the distributed power source settlement basis is as follows: the calculation expression of the adjustable load settlement basis is as follows: In the formula, S p represents the settlement value of the entire distributed power supply; S f represents the settlement value of the entire adjustable load; R t to t clear prices at the moment, I t to t momentary incentive coefficients; At t The actual response rate is expressed as: the actual response amount of the user is represented as: wherein: is t the actual response rate at the moment; X t is t the actual user response amount at the moment; Y t is t the declared response capacity at the moment; L t is t the average power in the user response period at the instant; B t is t the baseline average power at the instant.

2. The virtual power plant hierarchical settlement method considering contribution degrees according to claim 1, characterized in that: in the step of establishing the virtual power plant hierarchical settlement framework, the established virtual power plant hierarchical settlement framework comprises a virtual power plant and a power grid company settlement framework; the virtual power plant and the power grid company settlement framework is a settlement framework between the virtual power plant layer and the dispatching transaction layer; the specific structure of the settlement framework between the virtual power plant layer and the dispatching transaction layer is as follows: on the dispatching transaction layer, the power dispatching center publishes a demand to the transaction center; the transaction center publishes opening information data to the virtual power plant layer through the dispatching transaction layer; the virtual power plant layer transmits data to the upper dispatching transaction layer after declaring a response amount; the data is cleared by the transaction platform; the transaction platform sends the clearing result to the power dispatching center for power dispatching; the virtual power plant layer adjusts the charge-discharge curve according to the dispatching instruction issued by the power dispatching center, measures and counts the execution and reports the execution power to the power dispatching center; the power dispatching center generates a dispatching instruction and synchronizes it to the transaction platform; the transaction platform obtains the wholesale market settlement result data and transmits the wholesale market settlement result to the virtual power plant layer and the power grid company.

3. The virtual power plant hierarchical settlement method considering contribution degrees according to claim 1, characterized in that: in the step of establishing the virtual power plant hierarchical settlement framework, the established virtual power plant hierarchical settlement framework comprises a virtual power plant internal aggregated resource settlement framework; the virtual power plant internal aggregated resource settlement framework is a settlement framework between the virtual power plant layer and the resource layer; the specific structure of the settlement framework between the virtual power plant layer and the resource layer is as follows: On the resource layer, the virtual power plant layer issues market demand information to the distributed resources of the resource layer, the distributed resources report adjustment capability related data, the virtual power plant layer integrates the distributed resource declaration data, and then reports to the wholesale market through the transaction platform of the dispatching transaction layer, and the virtual power plant layer decomposes the wholesale market bid results to the distributed resources, the distributed resources correspondingly execute the charging and discharging curve adjustment, the distributed resources control the power generation and power consumption according to the charging and discharging curve and the adjustment curve, after the power generation and power consumption are executed, the distributed resources report the data, and the virtual power plant layer performs secondary settlement and issues the settlement results to the distributed resources. 4.The virtual power plant hierarchical settlement method considering contribution degrees according to claim 1, wherein, The t The calculation expression of the moment excitation coefficient is: ; The incentive coefficient is divided into a contribution degree of promoting new energy consumption or a contribution degree of reducing user comprehensive cost according to source load, and the contribution degree of promoting new energy consumption and the contribution degree of reducing user comprehensive cost are calculated by a marginal contribution weighted average method.

5. The virtual power plant hierarchical settlement method considering contribution degree according to claim 4, characterized in that, In the step of acquiring the virtual power plant settlement contribution degree, in t the virtual power plant settlement contribution degree is acquired by the following calculation expression: wherein: is the total response quantity of resource S over all time periods; is the actual demand response quantity.

6. A virtual power plant hierarchical settlement system considering contribution degree, characterized in that, It comprises: a hierarchical settlement framework establishment module for establishing a virtual power plant hierarchical settlement framework; a settlement basis establishment module for establishing a virtual power plant settlement basis; a settlement contribution degree acquisition module for acquiring a virtual power plant settlement contribution degree according to the virtual power plant settlement basis; a hierarchical settlement module for performing hierarchical settlement under the virtual power plant hierarchical settlement framework in combination with the virtual power plant settlement contribution degree to obtain a settlement result of a power grid company to the virtual power plant and a settlement result of the virtual power plant to internal distributed power sources and adjustable loads in a peak shaving scenario; the virtual power plant hierarchical settlement framework established by the hierarchical settlement framework establishment module comprises a dispatching transaction layer, a virtual power plant layer and a resource layer; the virtual power plant layer is connected with the dispatching transaction layer and the resource layer as an intermediate layer; the virtual power plant layer performs settlement with the power grid company through the dispatching transaction layer to output settlement data; and the virtual power plant layer interacts with the resource layer below to collect resource execution power and publish resource settlement information to settle with users under its jurisdiction; the hierarchical settlement module performs hierarchical settlement in combination with the settlement contribution degree of the virtual power plant layer, that is, after the peak shaving is completed, the virtual power plant layer settles the distributed resources in the resource layer through the settlement basis according to the external wholesale market settlement result output by the transaction platform in the dispatching transaction layer, calculates the contribution degree of each resource, and settles each resource in proportion; When the tiered settlement module obtains the settlement results between the power grid company and the virtual power plant in the peak-shaving scenario, and the settlement results between the virtual power plant and its internal distributed power sources and adjustable loads, the peak-shaving scenario refers to the virtual power plant layer... t - n Time's up t Peak shaving is performed constantly. t - n Accept at all times t Peak shaving orders at all times, t - n Time and t At a certain moment between moments, the virtual power plant layer adjusts the charging and discharging curves reported by the dispersed resources within the resource layer, superimposes the baselines of the dispersed resources within the resource layer at each moment to obtain the baseline of the virtual power plant layer, and superimposes the actual output data of the resources to obtain the actual output curve of the virtual power plant layer. the settlement basis establishment module comprises a distributed power source settlement basis calculation module and an adjustable load settlement basis calculation module; the calculation expression used by the distributed power source settlement basis calculation module is as follows: the calculation expression used by the adjustable load settlement basis calculation module is as follows: In the formula, S p represents the settlement value of the entire distributed power supply; S f represents the settlement value of the entire adjustable load; R t to t clearing price, I t to t incentive coefficient; At t The actual response rate is expressed as: the actual response amount of the user is represented as: wherein: is t the actual response rate at the moment; X t is t the actual user response amount at the moment; Y t is t the declared response capacity at the moment; L t is t the average power at the moment of user response within the response period; B t is t the baseline average power.

7. The virtual power plant hierarchical settlement system considering contribution degrees according to claim 6, characterized in that: the virtual power plant hierarchical settlement framework established by the hierarchical settlement framework establishment module comprises a virtual power plant and a power grid company settlement framework, the virtual power plant and the power grid company settlement framework is a settlement framework between the virtual power plant layer and the dispatching transaction layer, and the settlement framework between the virtual power plant layer and the dispatching transaction layer has the following specific structure: On the dispatch transaction layer, the power dispatch center issues demand to the transaction center, the transaction center issues opening information data to the virtual power plant layer through the dispatch transaction layer, the virtual power plant layer reports response amount to the upper layer dispatch transaction layer to transmit data, clears through the transaction platform, and the transaction platform sends the clearing result to the power dispatch center to participate in power dispatch; the virtual power plant layer adjusts the charge-discharge curve according to the dispatch instruction issued by the power dispatch center, measures and counts the execution and reports the execution power to the power dispatch center, the power dispatch center generates a dispatch instruction and synchronizes to the transaction platform, the transaction platform obtains the wholesale market settlement result data, and transmits the result of the wholesale market settlement to the virtual power plant layer and the power grid company. 8.The virtual power plant hierarchical settlement system considering contribution degree according to claim 6, wherein: The virtual power plant hierarchical settlement framework established by the hierarchical settlement framework establishment module includes a settlement framework of aggregated resources in the virtual power plant, and the settlement framework of aggregated resources in the virtual power plant is a settlement framework between the virtual power plant layer and the resource layer. On the resource layer, the virtual power plant layer issues market demand information to the distributed resources of the resource layer, the distributed resources report adjustment capacity related data, the virtual power plant layer integrates the distributed resource declaration data, and then performs wholesale market bidding through the transaction platform of the dispatch transaction layer, and decomposes the wholesale market bid-winning result to the distributed resources, the distributed resources correspondingly execute the charge-discharge curve adjustment, the distributed resources perform power generation and power utilization control according to the charge-discharge curve and the adjustment curve, after the power generation and power utilization are executed, the distributed resources report data, and the virtual power plant layer performs secondary settlement and issues the settlement result to the distributed resources. 9.The virtual power plant hierarchical settlement system considering contribution degree according to claim 6, wherein, The t The calculation expression of the moment excitation coefficient is: ; The incentive coefficient is divided into a new energy consumption promotion contribution degree or a user comprehensive cost reduction contribution degree according to source and load, and the new energy consumption promotion contribution degree and the user comprehensive cost reduction contribution degree are calculated by a marginal contribution weighted average method.

10. The virtual power plant hierarchical settlement system considering contribution degrees according to claim 9, characterized in that, The virtual power plant settlement contribution degree acquisition module adopts the following calculation expression to acquire t The settlement contribution degree of the virtual power plant layer at the moment: wherein: is the total response quantity of resource S over all time periods; is the actual demand response quantity.

11. A computer-readable storage medium storing a computer program, wherein the computer program comprises the following steps of: The computer program is executed by the processor to realize the virtual power plant hierarchical settlement method considering the contribution degree according to any one of claims 1 to 5.

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