A method for calculating source storage regulation contribution degree of a power system

Abstract

This application relates to the field of power system planning and operation, and particularly to a method for calculating the contribution of power system source-storage regulation capacity. The method involves constructing contribution indicators to reflect the various regulation capacities of source and storage, and determining the weights corresponding to each contribution indicator; obtaining the typical daily net load power for the planning year to determine the preset regulation demand for each regulation capacity; obtaining the installed capacity of various power sources in the power system to determine the total regulation capacity of each power source; when the total regulation capacity of any power source is greater than or equal to the preset regulation demand of the corresponding source, calculating the regulation capacity contribution of each power source according to a priority ranking strategy; when the total regulation capacity of any power source is less than the preset regulation demand of the corresponding source, calculating the regulation capacity contribution of the source and storage source after energy storage fills the gap; and using the weights corresponding to each contribution indicator as the weights of the regulation capacity contribution of each power source / source-storage source, calculating the comprehensive regulation capacity contribution of various power sources / source-storage source.

Description

Technical Field

[0001] This application relates to the field of power system planning and operation technology, and more specifically, to a method for calculating the contribution of power system source-storage regulation capacity. Background Technology

[0002] As the proportion of new energy sources in the power system gradually increases, the system regulation capacity of conventional power sources is insufficient, and there is an urgent need to rationally allocate energy storage and adopt a coordinated regulation approach of power sources and energy storage to adapt to the random fluctuations of the system.

[0003] Currently, the regulation services provided by power generation and storage systems mainly include frequency regulation, peak shaving, and ramping. However, existing power system planning lacks a systematic quantitative assessment of the contributions of various power generation and storage systems to different regulation services, and has not established a comprehensive regulation capacity contribution calculation framework covering multiple regulation services, making it difficult to provide a scientific basis for the planning and operation of new power systems. Summary of the Invention

[0004] In view of this, this application provides a method for calculating the contribution of power system source and storage regulation capacity, which covers a systematic contribution calculation framework for various regulation services such as frequency regulation, peak regulation, and ramping. At the same time, it fully considers the differences in technical characteristics of various sources and storage, and can comprehensively evaluate the contribution of various sources and storage in different regulation services and improve the accuracy of contribution calculation.

[0005] The technical solution provided in this application is as follows:

[0006] A method for calculating the contribution of power system source-storage regulation capacity includes:

[0007] A contribution index is constructed to reflect the various regulation capabilities of the source and storage systems, and the weights corresponding to each contribution index are determined; the contribution index includes frequency regulation contribution index, peak regulation contribution index, and ramp-up contribution index.

[0008] Obtain the typical daily net load power for the planning year and determine the preset regulation requirements for each regulation capacity;

[0009] Obtain the installed capacity of various power sources in the power system and determine the overall regulation capacity of each power source;

[0010] When the total regulation capacity of any power supply item is greater than or equal to the preset regulation requirement of the corresponding item, the regulation capacity contribution of each power supply item is calculated according to the priority ranking strategy.

[0011] When the total regulation capacity of any power source is less than the preset regulation requirement of the corresponding source, calculate the regulation capacity contribution of the corresponding source and energy storage after the energy storage fills the gap.

[0012] The weights corresponding to each contribution indicator are used as the weights of the corresponding regulation capability contribution of power sources / energy storage, and the comprehensive regulation capability contribution of various types of power sources / energy storage is calculated.

[0013] One possible implementation involves obtaining the typical daily net load power for the planning year, including:

[0014] Obtain typical daily load power and typical daily renewable energy power of the power system;

[0015] The difference between the typical daily load power and the typical daily renewable energy power is taken as the typical daily net load power.

[0016] In one possible implementation, the regulation requirements of various regulation capabilities include frequency regulation requirements, peak shaving requirements, and ramp-up requirements for the planning year.

[0017] The adjustment requirements for setting various adjustment capabilities include:

[0018] Based on the typical daily net load power, combined with the estimated maximum power gap under fault conditions, the maximum sudden change value of new energy sources, and the frequency regulation demand margin coefficient, the frequency regulation demand for the planning year is determined.

[0019] The maximum peak-to-valley difference of the net load power on the typical day is obtained, and the peak-shaving demand margin coefficient and the error correction coefficient of the net load forecast are combined to determine the peak-shaving demand for the planning year.

[0020] Based on the rate of change of the typical daily net load power per unit time, and in conjunction with the ramp demand margin coefficient, the ramp demand for the planning year is determined.

[0021] One possible implementation involves obtaining the installed capacity of various power sources in the power system and determining the total frequency regulation capability of the power sources, including:

[0022] For the Class of power supply, obtain the first The installed capacity of power supplies in the planned year, the proportion of capacity participating in frequency regulation, the droop parameters, and the system rated frequency are used to determine the first... Maximum frequency modulation capability of this type of power supply;

[0023] After removing power supply types that do not participate in frequency regulation, the maximum frequency regulation capabilities of the remaining power supply types are summed to obtain the total frequency regulation capability of the power supply.

[0024] One possible implementation involves determining the total peak-shaving capacity of the power supply, including:

[0025] For the Class of power supply, obtain the first The installed capacity, peak-shaving capacity ratio, and maximum peak-shaving depth of power sources in the planning year are used to determine the first... The maximum peak-shaving capability of a power supply; wherein, the maximum peak-shaving depth is determined by the highest power output and the lowest power output of the power supply within a certain period of time;

[0026] After removing power supply types that do not participate in peak regulation, the maximum peak regulation capabilities of the remaining power supply types are summed to obtain the total peak regulation capability of the power supply.

[0027] One possible implementation involves determining the total ramp-up capability of the power supply, including:

[0028] Get the The installed capacity of power supply class 1 in the planning year, the proportion of capacity participating in the ramp-up, and the maximum ramp-up rate are used to determine the first class of power supply. The maximum ramp rate capability of the power supply; wherein, the maximum ramp rate is determined by the first... The maximum ramp-up capacity of a power supply per unit time is determined by the percentage of the rated capacity of the units participating in the ramp-up process;

[0029] After removing power types that do not participate in ramping, the maximum ramping capabilities of the remaining power types are summed to obtain the total ramping capability of the power supply.

[0030] One possible implementation involves calculating the regulation capability contribution of each type of power source according to a priority ranking strategy, including:

[0031] For any regulation capability, a priority ranking method is used to sort the various power supplies from largest to smallest according to the maximum regulation capability of the corresponding item;

[0032] The adjustment capabilities of each type of power supply are called in sequence according to the order, until the sum of the adjustment capabilities of the called power supplies equals the preset adjustment requirements of the corresponding items; the adjustment capability of the last type of power supply is the preset adjustment requirements of the corresponding items minus the sum of the adjustment capabilities of the called power supplies.

[0033] The contribution of regulation capacity of each type of power supply to the corresponding preset regulation demand is calculated based on the ratio of the regulation capacity already utilized by each type of power supply; among them, the contribution of regulation capacity of the corresponding item of the unutilized power supply is 0.

[0034] In one possible implementation, when the total regulation capacity of any power source is less than the preset regulation requirement of the corresponding source, the regulation capacity contribution of the corresponding source and energy storage after the energy storage fills the gap is calculated, including:

[0035] Calculate the difference between the preset regulation requirement of the corresponding item and the total regulation capacity of the corresponding item's power supply, and use it as the regulation capacity that energy storage needs to provide.

[0036] The contribution of regulation capability of each power supply item is calculated based on the ratio of the maximum regulation capability of each item to the preset regulation requirement of the corresponding item.

[0037] The contribution of energy storage to the regulation capacity of the corresponding item is calculated based on the ratio of the regulation capacity required by energy storage to the preset regulation demand of the corresponding item.

[0038] One possible implementation involves calculating the overall regulation capability contribution of various power sources / storage systems, including:

[0039] For each type of power supply, the contribution of the regulation capability of each type of power supply is multiplied by its corresponding weight and then summed to obtain the comprehensive contribution of the regulation capability of each type of power supply.

[0040] For energy storage, the contribution of each regulation capability of energy storage is multiplied by its corresponding weight and then summed to obtain the comprehensive regulation capability contribution of energy storage.

[0041] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0042] This application provides a systematic contribution calculation framework covering multiple regulation services such as frequency regulation, peak shaving, and ramping, overcoming the limitations of existing technologies that lack multi-dimensional quantitative evaluation. By fully considering the differences in the technical characteristics of various power sources and energy storage, and innovatively adopting a scenario-based calculation strategy of prioritizing energy storage when capacity is sufficient and allocating it proportionally when capacity is insufficient, it achieves accurate quantification of the individual and comprehensive regulation capabilities of various power sources and energy storage. It can intuitively reveal the differences in contribution and functional positioning of various power sources and energy storage in system regulation, thereby providing a scientific and reliable quantitative decision-making basis for the coordinated planning of power sources and energy storage, the rational allocation of energy storage, and ensuring the safe and stable operation of the system in new power systems. Attached Figure Description

[0043] Figure 1 This is a flowchart illustrating a method for calculating the contribution of power system source-storage regulation capacity, provided in Embodiment 1 of this application.

[0044] Figure 2 This is a schematic diagram of the per-unit values ​​of typical daily load power and typical daily renewable energy power provided in Embodiment 2 of this application.

[0045] Figure 3 This is a schematic diagram showing the distribution of the contribution of various sources and storage to the comprehensive regulation capacity provided in Embodiment 2 of this application. Detailed Implementation

[0046] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the embodiments of this application. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0047] Example 1

[0048] See Figure 1 This is a flowchart illustrating a method for calculating the contribution of power system source-storage regulation capacity, provided in Embodiment 1 of this application. Figure 1 As shown, the specific implementation steps of the above method include:

[0049] Step 101: Construct contribution indicators to reflect the various regulation capabilities of the source and storage, and determine the weights corresponding to each contribution indicator.

[0050] This application embodiment constructs a contribution index system reflecting the regulation capacity of power sources and energy storage. The contribution indexes involved in the above contribution index system include, but are not limited to, the frequency regulation contribution index A1 for various power sources and energy storage on a typical day, the peak shaving contribution index A2 for various power sources and energy storage on a typical day, and the ramp-up contribution index A3 for various power sources and energy storage on a typical day.

[0051] Furthermore, each of the aforementioned contribution indicators is assigned a corresponding weight. Specifically, based on the above indicator system, the weight of each contribution indicator is determined using fuzzy hierarchical analysis, including the weight of the frequency regulation contribution A1 of various source and storage sources on a typical day. Weights of peak-shaving contributions of various sources and storage on typical days (A2) Weights of the contribution of various types of source and storage ramp-up on typical days (A3) .in, .

[0052] Step 102: Obtain the typical daily net load power for the planning year and determine the preset regulation requirements for each regulation capacity.

[0053] As one feasible approach, based on the system's typical daily load power and typical daily new energy power The typical daily net load power for the planning year is calculated and expressed as:

[0054]

[0055] Therefore, the demand for various adjustment services can be set for each planning year.

[0056] Specifically, in this embodiment of the application, the frequency regulation requirement for the planned year is as follows:

[0057]

[0058] In the formula, This is an estimate of the maximum power shortfall under fault conditions. The maximum allowable change in system frequency. This represents the maximum mutation value of new energy sources. Frequency regulation margin factor to take into account the uncertainties of actual operation and safety requirements.

[0059] The peak-shaving demand for the planned year is:

[0060]

[0061] In the formula, The maximum peak-to-valley difference of the typical daily net load curve for the planning year is calculated using the following formula: . This is the peak-shaving demand margin factor considering system operational uncertainties and reserve requirements. This is the error correction factor for net load forecasting.

[0062] The ramp-up requirements for the planned year are:

[0063]

[0064] In the formula, The formula for calculating the net load power change rate per unit time on a typical day in the planning year is as follows: . For a unit of time, A ramp-up margin factor to ensure the system has sufficient emergency response capabilities.

[0065] Step 103: Obtain the installed capacity of various power sources in the power system and determine the overall regulation capacity of each power source.

[0066] The overall regulation capabilities of the aforementioned power supply include its overall frequency regulation capability, overall peak regulation capability, and overall ramping capability. In this embodiment, the overall frequency regulation capability, overall peak regulation capability, and overall ramping capability of the power supply are calculated by statistically analyzing the installed capacity of various power supplies in the planned year.

[0067] Specifically, the installed capacity of various power sources in the planned year is statistically analyzed, and the following is set... For the first The installed capacity of this type of power supply in the planned year, 1 represents coal-fired power. 2 represents gas and electricity. 3 represents nuclear power, 4 represents hydropower, 5 represents new energy, and the maximum frequency regulation, peak regulation, and ramp-up capabilities of various power sources are calculated.

[0068] Among them, the The maximum frequency modulation capability of a power supply is expressed as:

[0069] (4)

[0070] In the formula, For the first The proportion of power supply capacity participating in frequency modulation. For the first The droop factor of the power supply. This is the system's rated frequency.

[0071] Calculate the first The maximum peak-shaving capability of a power supply is expressed as:

[0072] (5)

[0073] In the formula, For the first The proportion of power supply capacity participating in peak shaving. For the first The maximum peak shaving depth of this type of power supply is calculated using the following formula: . , Each within a certain time period The highest and lowest power output that a generator set of a certain type of power supply can handle.

[0074] Calculate the first The maximum ramp-up capability of this type of power supply is expressed as:

[0075] (6)

[0076] In the formula, For the first The proportion of power supply capacity used for ramping up. For the first The maximum ramp rate of this type of power supply is calculated using the following formula: . For a unit of time, For the first The percentage of the maximum ramp-up capacity of a power source per unit time relative to the rated capacity of the units participating in the ramp-up process.

[0077] In this embodiment, the total regulation capability of each power source is calculated based on its maximum regulation capability. Nuclear power does not participate in system frequency regulation, and the total frequency regulation capability of the power source is... .

[0078] New energy sources do not participate in system peak shaving; the total peak shaving capacity of the power supply is .

[0079] Nuclear power and new energy sources do not participate in ramp-up regulation; the total ramp-up capacity of the power supply is... .

[0080] Step 104: When the total regulation capacity of any power supply item is greater than or equal to the preset regulation requirement of the corresponding item, calculate the regulation capacity contribution of each type of power supply item according to the priority ranking strategy.

[0081] Based on the total power supply regulation capability and system regulation requirements, when the total power supply frequency regulation capability... Greater than or equal to system frequency regulation requirements At that time, the frequency modulation contribution of each type of power source is calculated using a priority ranking method.

[0082] Specifically, coal-fired power, gas-fired power, hydropower, and new energy sources will be categorized as follows: The values ​​are sorted from largest to smallest, and the power supply with the highest value in the sorted list is called first, until the power supply is called. The sum of values ​​equals That's it. The frequency modulation capability of the last type of power supply is the frequency modulation requirement minus the power supply already used. The sum. Then calculate the frequency modulation contribution of each type of power supply. If no power supply is used, the frequency modulation contribution is 0.

[0083] Similarly, the overall peak-shaving capability of the power supply Greater than or equal to system peak shaving demand Total ramp-up capability of power supply Greater than or equal to system ramping requirements At the same time, the peak-shaving contribution and ramp-up contribution of each type of power source are still calculated separately using the priority ranking method.

[0084] Step 105: When the total regulation capacity of any power source is less than the preset regulation requirement of the corresponding source, calculate the regulation capacity contribution of the corresponding source and energy storage after the energy storage fills the gap.

[0085] Specifically, when the total frequency regulation capability of the power supply Less than the system frequency regulation requirement In such cases, energy storage will fill the frequency regulation gap. The required energy storage frequency regulation capacity for the gap is... The calculation formula is: , then the first The frequency modulation contribution of the power supply is The frequency regulation contribution of energy storage is .

[0086] Similarly, the overall peak-shaving capability of the power supply Less than the system's peak-shaving demand At that time, or, the total power supply ramp-up capability. Less than the system ramp-up requirement At that time, energy storage is still needed to fill the peak-shaving gap or ramp-up gap, and then the peak-shaving contribution and ramp-up contribution of various sources and storage are calculated separately.

[0087] Step 106: Using the weights corresponding to each contribution index as the weights of the corresponding regulation capability contribution of power sources / energy storage, calculate the comprehensive regulation capability contribution of each type of power source / energy storage.

[0088] Specifically, based on the determined weights of each indicator and the contribution of each type of source and reservoir to their respective regulatory capabilities, the first... The contribution of power supply regulation capability is , .

[0089] The contribution of energy storage to regulation is .

[0090] Compared with the prior art, the technical solution provided in Embodiment 1 of this application has the following beneficial effects:

[0091] This application first constructs a contribution index system reflecting the regulation capacity of power sources and energy storage. Based on this, it sets the system regulation demand for the planning year and determines the regulation capacity of power sources based on the installed capacity of various power sources. Second, it calculates the contribution of each regulation capacity of the power source when its regulation capacity is greater than or equal to the system regulation demand. Then, it calculates the contribution of each regulation capacity of power sources and energy storage when its regulation capacity is less than the system regulation demand. Finally, it calculates the comprehensive regulation capacity contribution of various power sources and energy storage. By establishing a unified contribution calculation framework, this application deeply analyzes the differences in contributions of various power sources and energy storage in multiple regulation services such as frequency regulation, peak shaving, and ramping, clarifies the positioning of the regulation capacity of various power sources and energy storage, and provides a scientific basis for the coordinated planning of power sources and energy storage in new power systems.

[0092] Example 2

[0093] This application uses the power system source-storage regulation capacity contribution calculation method provided in Example 1 to quantitatively analyze the power system source-storage regulation capacity contribution.

[0094] For the contribution index system of source-storage regulation capacity, based on the fuzzy hierarchical analysis method, let the triangular fuzzy judgment matrix be:

[0095]

[0096] The weights of the frequency regulation contribution of various power sources and energy storage on a typical day (A1) are set to 0.5, the peak shaving contribution of various power sources and energy storage on a typical day (A2) are set to 0.25, and the ramp-up contribution of various power sources and energy storage systems on a typical day (A3) are set to 0.25.

[0097] Set a planning year, obtain power system operation forecast data for the planning year, with a baseline power of 3 billion kilowatts and a typical daily load power per unit value for the system. and the system's typical daily renewable energy power per unit value like Figure 2 As shown. Therefore, the typical daily net load power is =(19.5, 18.6, 18, 17.4, 17.1, 17.4, 18, 16.8, 14.7, 12.9, 11.7, 11.4, 9.9, 10.8, 12, 14.7, 18.3, 21.6, 22.5, 22.8, 22.2, 21, 20.7, 19.8) billion kilowatts. The installed capacity of coal-fired power, gas-fired power, nuclear power, hydropower, and new energy sources in the planned year are respectively... =1.58 billion kilowatts =220 million kilowatts =120 million kilowatts =420 million kilowatts =2.98 billion kilowatts.

[0098] The frequency regulation, peak regulation, and ramping requirements for the planning year are calculated according to equations (1), (2), and (3), where the parameters are: , , , , 100 million kilowatts , , 100 million kilowatts / h The service adjustment needs for the planning year are shown in Table 1.

[0099] Calculate the maximum frequency regulation, peak regulation, and ramp-up capabilities of various power sources according to equations (4), (5), and (6), where the parameters are: =50Hz, =10%, =10%, =1%, =1%, =5%, =5%, =3%, =10%, =70%, =100%, =100%, =100%, , , , , =30%, =20%, =25%, =55%, =70%, =80%, then the total frequency regulation capability, total peak regulation capability, and total ramp-up capability of the power supply were calculated, and the results are shown in Table 1.

[0100] Table 1 Comparison of Total Power Supply Regulation Capacity and System Regulation Demand in the Planning Year

[0101]

[0102] Table 1 shows the overall frequency regulation capability of the power supply. Greater than frequency modulation demand , will participate in frequency modulation Sort the values ​​from largest to smallest: =63200MW / Hz> =8800MW / Hz> =2980MW / Hz> =2800MW / Hz, and Therefore, the frequency regulation requirements can be met by utilizing coal-fired power, gas-fired power, new energy sources, and hydropower; the total peak-shaving capacity of the power supply... Less than peak-shaving demand The energy storage peak-shaving capacity required to calculate the gap is =(14.90-14.50) billion kilowatts = 0.40 billion kilowatts; Total power supply ramp-up capacity Less than the climbing requirement The energy storage ramp-up capacity required to calculate the gap is =(3.96-3.67) billion kilowatts / h = 0.29 billion kilowatts / h. The contributions of various energy sources and storage to frequency regulation, peak shaving, and ramping are shown in Table 2. This indicates that under the power planning scheme in this embodiment, the system regulation capacity is insufficient, and energy storage is required to undertake 1.56% of the system regulation capacity.

[0103] Table 2 Statistical results of contribution of various sources and reservoirs

[0104]

[0105] Finally, the comprehensive regulation capacity contribution of various types of power sources and storage is calculated based on the weights of the three core indicators of power system regulation participation. The distribution of the comprehensive regulation capacity contribution of various types of power sources and storage is as follows: Figure 3 As shown.

[0106] Compared with the prior art, the technical solution provided in this application has the following beneficial effects:

[0107] This application proposes a method for calculating the contribution of power system source-storage regulation capacity. It encompasses a systematic contribution calculation framework covering multiple regulation services, including frequency regulation, peak shaving, and ramping. This method fully considers the differences in the technical characteristics of various source and storage systems, enabling a comprehensive assessment of their contributions to different regulation services and improving the accuracy of contribution calculations. This application provides a scientific basis for the coordinated planning and operation of source and storage systems in new power systems and has guiding significance for improving the safe and stable operation of new power systems.

[0108] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A method for calculating source storage regulation capability contribution degree of a power system, characterized in that, include: Construct contribution indicators to reflect the various regulation capabilities of the source and storage, and determine the weights corresponding to each contribution indicator; The contribution indicators include frequency regulation contribution indicators, peak shaving contribution indicators, and ramp-up contribution indicators; Obtain the typical daily net load power for the planning year and determine the preset regulation requirements for each regulation capacity; Obtain the installed capacity of various power sources in the power system and determine the overall regulation capacity of each power source; When the total regulation capacity of any power supply item is greater than or equal to the preset regulation requirement of the corresponding item, the regulation capacity contribution of each power supply item is calculated according to the priority ranking strategy. When the total regulation capacity of any power source is less than the preset regulation requirement of the corresponding source, calculate the regulation capacity contribution of the corresponding source and energy storage after the energy storage fills the gap. The weights corresponding to each contribution indicator are used as the weights of the corresponding regulation capability contribution of power sources / energy storage, and the comprehensive regulation capability contribution of various types of power sources / energy storage is calculated.

2. The method of claim 1, wherein, Obtain the typical daily net load power for the planning year, including: Obtain typical daily load power and typical daily renewable energy power of the power system; The difference between the typical daily load power and the typical daily renewable energy power is taken as the typical daily net load power.

3. The method of claim 1, wherein, The regulation requirements for various regulation capabilities include frequency regulation requirements, peak shaving requirements, and ramp-up requirements for the planning year; The adjustment requirements for setting various adjustment capabilities include: Based on the typical daily net load power, combined with the estimated maximum power gap under fault conditions, the maximum sudden change value of new energy sources, and the frequency regulation demand margin coefficient, the frequency regulation demand for the planning year is determined. The maximum peak-to-valley difference of the net load power on the typical day is obtained, and the peak-shaving demand margin coefficient and the error correction coefficient of the net load forecast are combined to determine the peak-shaving demand for the planning year. Based on the rate of change of the typical daily net load power per unit time, and in conjunction with the ramp demand margin coefficient, the ramp demand for the planning year is determined.

4. The method of claim 1, wherein, Obtain the installed capacity of various power sources in the power system and determine the overall frequency regulation capability of the power sources, including: For the Class of power supply, obtain the first The installed capacity of power supplies in the planned year, the proportion of capacity participating in frequency regulation, the droop parameters, and the system rated frequency are used to determine the first... Maximum frequency modulation capability of this type of power supply; After removing power supply types that do not participate in frequency regulation, the maximum frequency regulation capabilities of the remaining power supply types are summed to obtain the total frequency regulation capability of the power supply.

5. The method of claim 1, wherein, Determine the overall peak-shaving capacity of the power supply, including: For the Class of power supply, obtain the first The installed capacity, peak-shaving capacity ratio, and maximum peak-shaving depth of power sources in the planning year are used to determine the first... The maximum peak-shaving capability of a power supply; wherein the maximum peak-shaving depth is determined by the highest and lowest power output of the power supply within a certain period of time; After removing power supply types that do not participate in peak regulation, the maximum peak regulation capabilities of the remaining power supply types are summed to obtain the total peak regulation capability of the power supply.

6. The method of claim 1, wherein, Determine the total ramp-up capability of the power supply, including: Obtain the first The planning year installed capacity, capacity proportion participating in climbing and maximum climbing rate of the power supply of the first Determine the maximum climbing capacity of the power supply of the first The maximum climbing rate is determined by the percentage of the maximum climbing capacity of the power supply of the first After removing power types that do not participate in ramping, the maximum ramping capabilities of the remaining power types are summed to obtain the total ramping capability of the power supply.

7. The method of claim 1, wherein, The regulation capability contribution of each type of power source is calculated according to a priority ranking strategy, including: For any regulation capability, a priority ranking method is used to sort the various power supplies from largest to smallest according to the maximum regulation capability of the corresponding item; The adjustment capabilities of each type of power supply are called in sequence according to the order, until the sum of the adjustment capabilities of the called power supplies equals the preset adjustment requirements of the corresponding items; the adjustment capability of the last type of power supply is the preset adjustment requirements of the corresponding items minus the sum of the adjustment capabilities of the called power supplies. The contribution of regulation capacity of each type of power supply to the corresponding preset regulation demand is calculated based on the ratio of the regulation capacity already utilized by each type of power supply; among them, the contribution of regulation capacity of the corresponding item of the unutilized power supply is 0.

8. The method of claim 1, wherein, When the total regulation capacity of any power source is less than the preset regulation requirement of the corresponding source, the contribution of the regulation capacity of the corresponding source and energy storage to fill the gap is calculated, including: Calculate the difference between the preset regulation requirement of the corresponding item and the total regulation capacity of the corresponding item's power supply, and use it as the regulation capacity that energy storage needs to provide. The contribution of regulation capability of each power supply item is calculated based on the ratio of the maximum regulation capability of each item to the preset regulation requirement of the corresponding item. The contribution of energy storage to the regulation capacity of the corresponding item is calculated based on the ratio of the regulation capacity required by energy storage to the preset regulation demand of the corresponding item.

9. The method of claim 1, wherein, Calculate the overall regulation capability contribution of various power sources / energy storage systems, including: For each type of power supply, the contribution of the regulation capability of each type of power supply is multiplied by its corresponding weight and then summed to obtain the comprehensive contribution of the regulation capability of each type of power supply. For energy storage, the contribution of each regulation capability of energy storage is multiplied by its corresponding weight and then summed to obtain the comprehensive regulation capability contribution of energy storage.

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