Auxiliary new energy-pumped storage random evolutionary game capacity scheduling method and system
By building a new energy-sucking storage random evolution game capacity scheduling method and system, the problem of difficulty in carrying out energy cooperation and mutual assistance in the existing technology is solved, and the joint operation of new energy-sucking storage in the multi-level power market is realized.
Patent Information
- Application Number
- CN202411503794.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-25
- Publication Date
- 2025-05-30
AI Technical Summary
The existing new energy-storage research is difficult to carry out energy cooperation and mutual assistance, and the joint operation of new energy-storage in the multi-level power market is not regarded as the cooperative alliance status reached by the main players of the game after decision.
Provide auxiliary new energy-sucking storage random evolution game capacity scheduling methods and systems, obtain data from new energy power stations and pumping storage power stations, build game models, analyze the benefits of game entities under different working modes, judge whether a cooperative working mode has been reached, and update the operating status of the power station based on real-time data.
The joint operation of new energy-storage in the multi-level power market has been realized, which can carry out energy cooperation and mutual assistance more effectively, improve resource utilization, and support the system's safe and stable power supply.
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Figure CN120073650A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of power market decision-making, and particularly to a new energy-pumped storage stochastic evolutionary game method and system. Background Technique
[0002] In the power system, with the rapid increase in the proportion of new energy power generation, the power system faces the "dilemma" of difficult new energy consumption during low load periods and difficult power supply guarantee during peak load periods. It is necessary to integrate a large-scale storage mechanism to improve resource utilization efficiency and support the safe and stable power supply of the system. Pumped storage, as the most mature technology, the most economical, and the most suitable for large-scale development of low-carbon flexible regulation power source at present, shoulders the important responsibility of suppressing the power fluctuation of new energy grid connection and peak shaving and valley filling.
[0003] However, at present, research on capacity configuration and optimal dispatching is generally carried out on the premise of cooperation between new energy and pumped storage, and the joint operation of new energy and pumped storage in multi-level power markets is not regarded as a cooperative alliance state reached after decision-making by game players. This method cannot fully reflect the evolutionary process of the new energy-pumped storage alliance combination and is difficult to correctly carry out energy cooperation and mutual assistance. Summary of the Invention
[0004] The present invention provides an auxiliary new energy-pumped storage stochastic evolutionary game capacity dispatching method and system to solve the problem that it is difficult to carry out energy cooperation and mutual assistance in existing new energy-pumped storage research.
[0005] To achieve the above object, the present invention is realized through the following technical solutions: In the first aspect, the present invention provides an auxiliary new energy-pumped storage stochastic evolutionary game capacity dispatching method, including the following steps: Step 1: Obtain the predicted output data, actual output data of the new energy power station, and the dispatching output data of the pumped storage power station; Step 2: Calculate the revenue of the new energy power station in the independent operation mode based on the predicted output data and actual output data, and calculate the revenue of the pumped storage power station in the independent operation mode based on the dispatching output data; Step 3: In the cooperative operation mode of the new energy power station and the pumped storage power station, determine the operating conditions of the pumped storage power station based on the dispatching output data, and then calculate the real-time pumping and storage power of the pumped storage power station in combination with the actual output data of the new energy power station; Step 4: Calculate the actual grid-connected power of the new energy power station in the cooperative operation mode according to the real-time pumping and storage power, and then calculate the total revenue in the cooperative operation mode based on the real-time pumping and storage power and the actual grid-connected power, and distribute the total revenue; Step 5: Construct a payment matrix based on the revenues of the new energy power station and the pumped-storage power station under independent operation and the revenues allocated under the cooperation mode. Improve the replicator dynamics equation by combining the payment matrix with Gaussian white noise. Construct a game model based on the replicator dynamics equation. Analyze the revenues of the game players under different operation modes to determine whether the new energy power station and the pumped-storage power station reach a cooperation operation mode. If the cooperation operation mode is adopted, update the real-time power of the pumped-storage power station and the actual grid-connected power of the new energy power station according to the real-time pumped-storage power and the actual grid-connected power. Otherwise, no adjustment is made.
[0006] Among them, the game players are the photovoltaic power station, the wind power station, and the pumped-storage power station. After analyzing the game model, select the operation mode with the highest revenue. When the selected operation mode is the cooperation operation mode, perform the corresponding operations in Step 5 above.
[0007] Furthermore, in Step 2, the new energy power station includes a photovoltaic power station and a wind power station. The revenue of the photovoltaic power station or the wind power station under the independent operation mode is calculated by the following formula: ; Among them, represents the revenue of the photovoltaic power station or the wind power station under the independent operation mode; represents the grid-connected revenue; represents the construction cost; represents the deviation penalty cost; The grid-connected revenue is calculated by the following formula: ; Among them, represents the grid-connected power; represents the grid-connected electricity price; represents the time set, indicating the grid-connected time of the photovoltaic power station or the wind power station; The construction cost is calculated by the following formula: ; Among them, represents the installed capacity; represents the unit capacity investment cost, in ten thousand yuan / MW; represents the discount rate; represents the operation life; The deviation penalty cost is calculated by the following formula: ; Among them, represents the unit power deviation penalty price, in ten thousand yuan / MW; represents the over-generation amount; represents the under-generation amount; Among them, the over-generation amount is calculated by the following formula: ; Among them, represents the predicted output data; represents the actual output data; when new energy is connected to the grid, when the actual output data and the predicted processing data exceed the predetermined deviation range, assessment is required. represents the deviation range that does not require assessment during grid connection; The output deficit is calculated by the following formula: .
[0008] Furthermore, in step 2, the revenue of the pumped-storage power station in the independent operation mode is calculated by the following formula: ; Among them, represents the revenue of the pumped-storage power station in the independent operation mode; represents the revenue of the daily planned output; represents the daily construction cost; represents the start-stop cost; The revenue of the daily planned output is calculated by the following formula: ; Among them, represents the daily planned output. In the daily planned output, power generation takes a positive value and pumping takes a negative value; and respectively represent the Boolean variables of the power generation condition and the pumping condition. Power generation / pumping takes 1, and vice versa takes 0; and are the power generation and pumping prices per unit power, in ten thousand yuan / MW; The daily construction cost is calculated by the following formula: ; Among them, represents the rated capacity of the pumped-storage power station, represents the investment cost per unit capacity, in ten thousand yuan / MW; represents the operation years; The start-stop cost is calculated by the following formula: ; Among them, and are the costs for single start-up and shutdown of the pumped-storage unit respectively, in ten thousand yuan / time.
[0009] Furthermore, the operating conditions of the pumped-storage power station include pumping, power outage, and power generation; The real-time pumped-storage power includes real-time power generation power and real-time pumping power; When the pumped - storage power station is in the pumping or power - generation operation mode, the real - time power generation power is calculated by the following formula: ; Wherein, represents the real - time power generation power; represents the bundled power - generation capacity of the pumped - storage power station and the new - energy power station in the cooperative working mode; When the pumped - storage power station is in the pumping or power - generation operation mode, the real - time pumping power is calculated by the following formula: ; Wherein, represents the real - time pumping power; represents the bundled pumping capacity of the pumped - storage power station and the new - energy power station in the cooperative working mode.
[0010] Furthermore, calculating the actual grid - connected power of the new - energy power station according to the real - time pumped - storage power includes: updating the actual grid - connected power of the new - energy power station according to the actual output data, real - time power generation power, real - time pumping power, excess output and output deficit; It is expressed as: ; Wherein, represents the actual grid - connected power of the new - energy power station participating in the cooperative working mode.
[0011] Furthermore, in step 4, the total revenue is calculated by the following formula: ; Wherein, represents the total revenue; represents the revenue of the pumped - storage power station and the new - energy power station in the cooperative working mode, and represents the bundled power - generation capacity revenue and bundled pumping capacity cost; Wherein, ; The bundled power - generation capacity revenue is calculated by the following formula: ; .
[0012] Furthermore, in step 4, the distribution of the total revenue is calculated by the following formula: ; Wherein, represents the number of pumped - storage power stations and new - energy power stations participating in the cooperation; Let \(S\) denote the cooperation portfolio of all pumped - storage power stations or new - energy power stations as the main body \(i\), \(|s|\) be the number of members in the cooperation portfolio \(s\); \(I(s)\) is the total income of the cooperation portfolio \(s\), and \(I(s / i)\) is the cooperation income after removing member \(i\), emphasizing the marginal contribution of member \(i\).
[0013] Furthermore, in step 5, the replicator - dynamic equation is improved based on the probabilities of new - energy power stations and pumped - storage power stations choosing each mode combined with Gaussian white noise; The probabilities of new - energy power stations and pumped - storage power stations choosing each mode are obtained through the pay - off matrix; The replicator - dynamic equation is expressed as: ; ; ; Among them, represents the probability that a wind power station chooses cooperation; represents the probability that a photovoltaic power station chooses the cooperation working mode; represents the probability that a pumped - storage power station chooses the cooperation working mode; represents the income when a new - energy power station or a pumped - storage power station chooses the cooperation working mode, where ; , , are all the incomes of new - energy power stations or pumped - storage power stations when choosing the independent working mode, obeys the standard one - dimensional Brownian motion, reflecting how the game players are affected by random disturbances, represents Gaussian white noise. When \(t\gt0\), the step size \(h\gt0\), and its increment obeys the normal distribution ; is the random interference intensity.
[0014] On the second aspect, the present invention provides an auxiliary new - energy - pumped - storage random evolutionary game capacity scheduling system, including a memory, a processor, and a computing program stored on the memory and executable on the processor. It is characterized in that when the processor executes the computer program, the steps of any of the above - mentioned methods are implemented.
[0015] Beneficial effects: The auxiliary new energy-pumped storage stochastic evolutionary game capacity scheduling method and system provided by the present invention, compared with traditional methods such as capacity configuration and optimal scheduling, do not consider the decision-making process of independent market players, and regard the joint operation of new energy-pumped storage in multi-level power markets as a cooperative state reached by game players after decision-making. First, based on the capacity market trading mechanism, the revenues of game players in different operation modes are analyzed. Then, considering the interference of internal and external uncertainty factors on the evolutionary process, Gaussian white noise is added to show the perturbations suffered by game players during the evolutionary process, and a game model under the ancillary service market is established. Finally, through evolutionary decision-making under random conditions, the stable strategies of the player game are obtained, providing clearer and more effective energy cooperation data for new energy power stations and pumped storage power stations. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic flowchart of the auxiliary new energy-pumped storage stochastic evolutionary game capacity scheduling method according to Embodiment 1 of the present invention; Figure 2 It is a comparison diagram of the bundled capacity and actual call power of the pumped storage power station according to Embodiment 2 of the present invention; Figure 3 It is an evolutionary result diagram of the wind farm under different perturbation values according to Embodiment 2 of the present invention; Figure 4 It is an evolutionary result diagram of the photovoltaic power station under different perturbation values according to Embodiment 2 of the present invention; Figure 5 It is an evolutionary result diagram of the pumped storage power station under different perturbation values according to Embodiment 2 of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0017] The technical solutions of the present invention will be described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the protection scope of the present invention.
[0018] Unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the ordinary meaning understood by those of ordinary skill in the art to which the present invention belongs. The "first", "second" and similar terms used in the present invention do not denote any order, quantity or importance, but are only used to distinguish different components. Similarly, terms such as "a" or "one" do not denote a quantity limitation, but mean that there is at least one. The terms "connected" or "coupled" and the like are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms "upper", "lower", "left", "right" and the like are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship also changes accordingly.
[0019] Example 1 Please refer to Figure 1 , the embodiment of the present application provides an auxiliary new energy - pumped storage stochastic evolutionary game capacity scheduling method, including the following steps: Step 1: Obtain the predicted output data, actual output data of the new energy power station, and the scheduling output data of the pumped storage power station; Step 2: Calculate the revenue of the new energy power station in the independent operation mode based on the predicted output data and actual output data, and calculate the revenue of the pumped storage power station in the independent operation mode based on the scheduling output data; In the independent operation mode, there is no interaction relationship between the game players. The revenue of the photovoltaic power station or wind power station in the independent operation mode is calculated by the following formula: ; where, represents the revenue of the photovoltaic power station or wind power station in the independent operation mode; represents the grid - connection revenue; represents the construction cost; represents the deviation penalty cost; The grid - connection revenue is calculated by the following formula: ; where, represents the grid - connection power; represents the grid - connection electricity price; represents the time set, which represents the grid - connection time of the photovoltaic power station or wind power station; The construction cost is calculated by the following formula: ; where, represents the installed capacity; represents the unit - capacity investment cost, with the unit of ten thousand yuan / MW; represents the discount rate; represents the operation years; The deviation penalty cost is calculated by the following formula: ; where, represents the unit - power deviation penalty price, with the unit of ten thousand yuan / MW; represents the over - output volume; represents the output deficit volume; where, the over - output volume is calculated by the following formula: ; where, represents the predicted output data; Indicates the actual output data; when new energy is connected to the grid, if the actual output data and the predicted processing data exceed the predetermined deviation range, it is necessary to accept assessment. Indicates the deviation range that does not require assessment when connected to the grid; The power shortage amount is calculated by the following formula: .
[0020] The revenue of the pumped storage power station in the independent operation mode is calculated by the following formula: ; Among them, Indicates the revenue of the pumped storage power station in the independent operation mode; Indicates the revenue of the day-ahead planned output; Indicates the daily chemical construction cost; Indicates the start-stop cost; The revenue of the day-ahead planned output is calculated by the following formula: ; Among them, Indicates the day-ahead planned output. In the day-ahead planned output, power generation takes a positive value and pumping takes a negative value; and respectively represent the Boolean variables of the power generation condition and the pumping condition. For power generation / pumping, it takes 1, otherwise it takes 0; and are respectively the power generation and pumping prices per unit power, in units of 10,000 yuan / MW; The daily chemical construction cost is calculated by the following formula: ; Among them, Indicates the rated capacity of the pumped storage power station, Indicates the investment cost per unit capacity, in units of 10,000 yuan / MW; Indicates the operation years; The start-stop cost is calculated by the following formula: ; Among them, and are respectively the costs for single-time starting and shutting down the pumped storage units, in units of 10,000 yuan / time.
[0021] Step 3: In the cooperative operation mode of the new energy power station and the pumped storage power station, determine the operation condition of the pumped storage power station based on the dispatching output data, and then calculate the real-time pumping and storage power of the pumped storage power station in combination with the actual output data of the new energy power station; Based on the data processed by the dispatching, the operating conditions of the pumped-storage power station include three types: pumping, power outage, and power generation. In the new energy - pumped-storage power station cooperation working mode, when the pumped-storage power station is in the pumping (or power generation) condition, a certain pumping (or power generation) capacity is bundled between the pumped-storage power station and the new energy power station. In the shutdown condition, the pumped-storage power station can bundle both the pumping capacity and the power generation capacity with the new energy power station. Combining the output deviation of the new energy power station, the real-time pumping / generation power of the pumped-storage power station is determined; Specifically, the real-time pumped-storage power includes the real-time power generation power and the real-time pumping power; When the pumped-storage power station is in the pumping or power generation operating condition, the real-time power generation power is calculated by the following formula: ; Wherein, represents the real-time power generation power; represents the bundled power generation capacity between the pumped-storage power station and the new energy power station in the cooperation working mode; When the pumped-storage power station is in the pumping or power generation operating condition, the real-time pumping power is calculated by the following formula: ; Wherein, represents the real-time pumping power; represents the bundled pumping capacity between the pumped-storage power station and the new energy power station in the cooperation working mode.
[0022] Step 4: Calculate the actual power fed into the grid of the new energy power station in the cooperation working mode according to the real-time pumped-storage power, and then calculate the total revenue in the cooperation working mode based on the real-time pumped-storage power and the actual power fed into the grid, and distribute the total revenue; Specifically, calculate the actual power fed into the grid of the new energy power station according to the actual output data, real-time power generation power, real-time pumping power, output surplus amount, and output deficit amount; It is expressed as: ; Wherein, represents the actual power fed into the grid of the new energy power station participating in the cooperation working mode.
[0023] The total revenue is calculated by the following formula: ; Wherein, represents the total revenue; represents the revenue of the pumped-storage power station and the new energy power station in the cooperation working mode, and represent the revenue of the bundled power generation capacity and the cost of the bundled pumping capacity; Wherein, ; The bundled power generation capacity revenue is calculated by the following formula: ; .
[0024] When distributing the total revenue, if only considering the revenue obtained by each member of the alliance in the cooperative working mode to distribute the total revenue of the alliance, it is difficult to ensure the fairness of the distribution, thus hitting the enthusiasm of the entities to participate in the alliance. Therefore, based on the marginal contribution of the entities to the total revenue of the alliance, the Shapley value method is adopted for revenue distribution, which not only reflects the process of mutual game among the entities but also reflects the contribution degree of each entity to the total revenue; The distribution of the total revenue is calculated by the following formula: ; Among them, represents the number of pumped-storage power stations and new energy power stations participating in the cooperation; represents all combinations of pumped-storage power stations or new energy power stations as the cooperation combination of entity i, |s| is the number of members in the cooperation combination s; I(s) is the total revenue of the cooperation combination s, and I(s / i) is the cooperation revenue after removing member i, emphasizing the marginal contribution of member i.
[0025] Step 5: Construct a payoff matrix based on the revenue of the new energy power station and the pumped-storage power station under independent operation and the revenue distributed under the cooperation mode, improve the replicator dynamic equation based on the payoff matrix combined with Gaussian white noise, construct a game model based on the replicator dynamic equation, analyze the revenue of the game entities under different working modes based on the game model, judge whether the new energy power station and the pumped-storage power station reach the cooperation working mode. If the cooperation working mode is adopted, update the real-time power of the pumped-storage power station and the actual grid-connected power of the new energy power station according to the real-time pumped-storage power and the actual grid-connected power. Otherwise, do not adjust. The bundled pumping capacity of the pumped-storage can absorb the excess output of the new energy, but insufficient bundled pumping capacity of the pumped-storage will lead to incomplete consumption of the new energy, then it is necessary to update the actual grid-connected power of the new energy power station.
[0026] Obtain the probabilities of the new energy power station and the pumped-storage power station choosing the cooperation working mode or the independent working mode based on the payoff matrix, and then improve the replicator dynamic equation based on the probabilities of the new energy power station and the pumped-storage power station choosing each mode combined with Gaussian white noise; Table 1: Tripartite evolutionary game payoff matrix
[0027] represents the probability of the entity choosing a strategy. Each entity has two choice strategies. Among them, the probability of the wind farm choosing the "cooperate" strategy is , and the probability of choosing the "not cooperate" strategy is ; The probability that the PV power station selects the "cooperate" strategy is x2, and the probability that it selects the "not cooperate" strategy is ; The probability that the pumped-storage power station selects the "actively absorb" strategy is , and the probability that it selects the "passively absorb" strategy is , where ; represents the payment of the subject under the coalition combination. The payment matrix of the three-party evolutionary game of wind, light, and storage is shown in Table 1. Based on five different coalition combinations of wind-light-storage, wind-light, wind-storage, PV, and independent operation, the benefits of the game subjects can be divided into four cases. Taking the wind farm as an example, they are the benefits when the three parties of wind, light, and storage cooperate in the coalition, the benefits when the two parties of wind-light and wind-storage cooperate in the coalition, and the benefits when the PV and storage operate independently. It should be noted that if only one subject chooses to participate in the cooperation coalition, its benefit is equivalent to the respective benefits of the three subjects when they all operate independently, denoted by the superscript N.
[0028] The replicator dynamic equation is expressed as: ; ; ; where follows the standard one-dimensional Brownian motion, reflecting how the game subjects are affected by random perturbations, represents Gaussian white noise. When t > 0 and the step size h > 0, its increment follows the normal distribution ; is the random interference intensity.
[0029] Embodiment 2 Step 1: Obtain the predicted output data, actual output data of the new energy power station, and the dispatching output data of the pumped-storage power station; Step 2: Calculate the benefits of the new energy power station in the independent operation mode based on the predicted output data and actual output data, and calculate the benefits of the pumped-storage power station in the independent operation mode based on the dispatching output data; Step 3: In the cooperation operation mode of the new energy power station and the pumped-storage power station, determine the operating conditions of the pumped-storage power station based on the dispatching output data, and then calculate the real-time pumping and storage power of the pumped-storage power station in combination with the actual output data of the new energy power station; Step 4: Calculate the actual grid-connected power of the new energy power station in the cooperation operation mode according to the real-time pumping and storage power, and then calculate the total benefits in the cooperation operation mode based on the real-time pumping and storage power and the actual grid-connected power, and distribute the total benefits; Step 5: Construct a payment matrix based on the revenues of the new energy power station and the pumped-storage power station under independent operation and the revenues allocated under the cooperation model. Improve the replicator dynamics equation by combining the payment matrix with Gaussian white noise. Construct a game model based on the replicator dynamics equation. Analyze the revenues of the game players under different operation modes based on the game model to determine whether the new energy power station and the pumped-storage power station reach a cooperative operation mode. If the cooperative operation mode is adopted, update the real-time power of the pumped-storage power station and the actual grid-connected power of the new energy power station according to the real-time pumped-storage power and the actual grid-connected power, otherwise make no adjustment.
[0030] In this embodiment, the new energy power station includes a wind farm with continuous output and a photovoltaic power station with intermittent output. Based on the actual output data of a certain wind-solar combination, the existing wind farms, photovoltaic power stations, and pumped-storage power stations in this area are taken as the research objects for case simulation analysis. The total installed capacity of the wind farms in this area throughout the year is 6690 MW, the total installed capacity of the photovoltaic power stations is 4810 MW, and the installed capacity of the pumped-storage power station is 4×300 MW. The prediction error of the new energy output approximately follows , a normal distribution; the grid-connected price is 0.045 million yuan / MWh; the fines for new energy output surplus and output deficit are 0.05 million yuan / MWh; the allowable deviation of the grid-connected power is 3% (no penalty is imposed if the predicted new energy power generation and the grid-connected power are within 3%); the pumping / generation efficiency is 0.8; the benchmark prices for pumping and generation are 0.035 million yuan / MWh and 0.05 million yuan / MWh respectively; the start-stop cost of the pumped-storage power station is 0.5 million yuan per time.
[0031] Table 2: Analysis of the revenues of game players under different alliance combinations
[0032] Compared with the traditional independent operation mechanism, the cooperation alliance among the players effectively improves the revenue and reduces the cost. The photovoltaic power station and the pumped-storage power station obtain the maximum revenues of 1.0306 million yuan and 0.4057 million yuan respectively in the wind-solar alliance and the wind-pumped-storage alliance combinations; by forming an alliance with the pumped-storage power station, the deviation penalty costs of the wind farm and the photovoltaic power station are reduced by 0.1512 million yuan and 0.011 million yuan respectively. The pumped-storage power station sacrifices its own interests during the effective accommodation of wind-solar power, and has a large marginal contribution in the wind-solar-pumped-storage alliance combination. The comparison chart of the bundled capacity and the actual power consumption of the pumped-storage power station is as Figure 2 shown.
[0033] Please refer to Figures 3 - 5 , where represents the evolution time; , , are all cooperation willingness, 1 represents high willingness, 0.5 represents medium willingness, and 0 represents low willingness; represents the disturbance value. As the random disturbance intensity increases, Figure 3 and Figure 5 In , the speed at which the strategic behaviors of wind farms and pumped storage power stations converge to the stable state slows down, but the evolution eventually converges to 1. However, in Figure 4 In the case of PV power plants, the response to random disturbance intensity changes is more sensitive, not only the convergence speed is slowed down, but also, in particular, when and When , the evolution process of the photovoltaic power station shows a dramatic fluctuation trend, and its evolution trajectory changes from converging to 0 to tending to 1, indicating that photovoltaic power stations are most likely to engage in speculative behavior in capacity trading in the ancillary service market.
[0034] The preferred specific embodiments of the present invention are described in detail above. It should be understood that a person skilled in the art can make many modifications and changes based on the concept of the present invention without creative work. Therefore, any technical solution that can be obtained by a person skilled in the art through logical analysis, reasoning or limited experiments based on the concept of the present invention on the basis of the prior art should be within the scope of protection determined by the claims.
Claims
1. Auxiliary new energy-pumped storage random evolution game capacity scheduling method, characterized by: The steps include: Step 1: Obtain the predicted output data, actual output data of the new energy power station and the dispatching output data of the pumped storage power station; Step 2: Calculate the revenue of the new energy power station in the independent working mode based on the predicted output data and the actual output data, and calculate the revenue of the pumped storage power station in the independent working mode based on the dispatching output data; Step 3: Under the cooperative working mode of the new energy power station and the pumped storage power station, the operating condition of the pumped storage power station is determined based on the dispatching output data, and then the real-time pumped storage power of the pumped storage power station is calculated in combination with the actual output data of the new energy power station; Step 4: Calculate the actual grid-connected power of the new energy power station under the cooperative working mode based on the real-time pumped storage power, and then calculate the total revenue under the cooperative working mode based on the real-time pumped storage power and the actual grid-connected power, and distribute the total revenue; Step 5: Construct a payment matrix based on the income of the new energy power station and the pumped storage power station under independent operation and the income distributed under the cooperative mode. Improve the replication dynamic equation based on the payment matrix combined with Gaussian white noise. Construct a game model based on the replication dynamic equation. Analyze the income of the game subjects under different working modes based on the game model to determine whether the new energy power station and the pumped storage power station have reached a cooperative working mode. If the cooperative working mode is adopted, the real-time power of the pumped storage power station and the actual grid-connected power of the new energy power station are updated according to the real-time pumped storage power and the actual grid-connected power. Otherwise, no adjustment will be made.
2. The auxiliary new energy-pumped storage random evolution game capacity scheduling method according to claim 1 is characterized in that: In step 2, the new energy power station includes a photovoltaic power station and a wind power station, and the income of the photovoltaic power station or the wind power station in an independent working mode is calculated by the following formula: ; in, Indicates the revenue of a photovoltaic power station or a wind power station in an independent working mode; It represents the grid connection income; represents the construction cost; represents the deviation penalty cost; The grid connection benefits are calculated by the following formula: ; in, Indicates grid-connected power; Indicates the grid-connected electricity price; Represents a time set; The construction cost is calculated by the following formula: ; in, Indicates installed capacity; It represents the investment cost per unit capacity, in ten thousand yuan / MW; represents the discount rate; Indicates the operating years; The deviation penalty cost is calculated by the following formula: ; in, Indicates the penalty price for unit power deviation, in ten thousand yuan / MW; Indicates excess output; Indicates the output shortfall; The excess output is calculated by the following formula: ; in, Indicates predicted output data; Indicates actual output data; Indicates the deviation range that does not need to be assessed when connecting to the grid; The output shortfall is calculated using the following formula: 。 3. The auxiliary new energy-pumped storage random evolution game capacity scheduling method according to claim 1 is characterized in that: In step 2, the revenue of the pumped storage power station in the independent working mode is calculated by the following formula: ; in, It represents the revenue of the pumped storage power station in the independent working mode; Indicates the planned output income on the previous day; represents the daily construction cost; represents the start-stop cost; The day-ahead planned output benefit is calculated by the following formula: ; in, It represents the planned output the day before. In the planned output the day before, power generation takes positive values and pumping takes negative values; and Boolean variables representing power generation and pumping conditions, 1 for power generation / pumping and 0 for pumping conditions; and They are the unit power generation and pumping prices, in ten thousand yuan / MW; The daily chemical construction cost is calculated by the following formula: ; in, Indicates the rated capacity of the pumped storage power station. It represents the investment cost per unit capacity, in ten thousand yuan / MW; Indicates the operating years; The start-stop cost is calculated by the following formula: ; in, and They are the cost of starting and shutting down the pumped-storage unit once, in ten thousand yuan per time.
4. The auxiliary new energy-pumped storage random evolution game capacity scheduling method according to claim 1 is characterized in that: The operating conditions of the pumped storage power station include pumping, power outage and power generation; The real-time pumped storage power includes real-time power generation and real-time pumping power; When the pumped storage power station is in pumping or generating operation, the real-time power generation power is calculated by the following formula: ; in, Indicates real-time power generation; It represents the bundled power generation capacity of the pumped storage power station and the renewable energy power station in the cooperative working mode; When the pumped storage power station is in pumping or generating operation, the real-time pumping power is calculated by the following formula: ; in, Indicates the real-time pumping power; It represents the bundled pumping capacity of the pumped-storage power station and the renewable energy power station in cooperative working mode.
5. The auxiliary new energy-pumped storage random evolution game capacity scheduling method according to claim 4 is characterized in that: Calculating the actual grid-connected power of the new energy power station according to the real-time pumped storage power includes: calculating the actual grid-connected power of the new energy power station according to the actual output data, the real-time power generation power, the real-time pumped power, the excess output and the shortage output; It is expressed as: ; in, It indicates the actual grid-connected power of new energy power stations in cooperative working mode.
6. The auxiliary new energy-pumped storage random evolution game capacity scheduling method according to claim 1 is characterized in that: In step 4, the total revenue is calculated by the following formula: ; in, represents the total revenue; It represents the benefits of pumped storage power station and new energy power station under the cooperative working mode, and denotes the benefits of bundled generation capacity and the costs of bundled pumping capacity; in, ; The bundled generation capacity benefit is calculated by the following formula: ; 。 7. The auxiliary new energy-pumped storage random evolution game capacity scheduling method according to claim 6 is characterized in that: In step 4, the distribution of the total income is calculated by the following formula: ; in, Indicates the number of pumped storage power stations and new energy power stations participating in the cooperation; Indicates that all pumped storage power stations or new energy power stations are the main i The collaborative combination, | s |For cooperative combination s The number of members in ; I ( s ) is a cooperative combination s Total revenue, I ( s / i ) to remove members i benefits of cooperation.
8. The auxiliary new energy-pumped storage random evolution game capacity scheduling method according to claim 1 is characterized in that: In step 5, the replicated dynamic equation is improved based on the probability of selecting each mode of the new energy power station and the pumped storage power station combined with Gaussian white noise; The probability of the new energy power station and the pumped storage power station selecting each mode is obtained through the payment matrix; The replication dynamic equation is expressed as: ; ; ; in, represents the probability that the wind power station chooses cooperation; Indicates the probability that the PV power station chooses the cooperative working mode; represents the probability that the pumped storage power station chooses the cooperative working mode; It represents the income when the new energy power station or pumped storage power station chooses the cooperative working mode, where ; , , These are the profits of new energy power stations or pumped storage power stations when they choose independent working mode. It obeys the standard one-dimensional Brownian motion, reflecting how the game subject is affected by random disturbances. Represents Gaussian white noise. When t>0, the step length h>0, and its increment Normal distribution ; is the random interference intensity.
9. Auxiliary new energy-pumped storage random evolution game capacity scheduling system, comprising a memory, a processor, and a computing program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the steps of the method described in any one of claims 1 to 8 are implemented.