Method, device and system for generating typical operation mode scenarios of power system

Abstract

The present invention discloses a method, device and system for generating a typical operation mode scenario of a power system, the method comprising adjusting the flow mode based on original data, generating an operation mode set including typical load operation mode scenarios, typical AC and DC key section operation mode scenarios, typical hydropower operation mode scenarios and new energy operation mode typical scenario characteristics; performing N‑1 expected fault safety and stability assessment on the flow of the operation mode under different typical scenario combinations, adjusting the instability mode according to the instability characteristics, until all typical operation modes meet the N‑1 expected fault safety and stability requirements, and generating a typical operation mode scenario set for power system analysis and control. The present invention generates typical operating condition scenarios of different source grid loads under the current power grid based on historical load, wind and solar energy operation curve analysis, thereby improving the efficiency of power grid mode analysis and calculation.

Description

Technical Field

[0001] The present invention belongs to the technical field of safe and stable operation control of power grids, and specifically relates to a method, device and system for generating a typical operation mode scenario of an electric power system. Background Art

[0002] With the large-scale access of new energy and direct current to the power system in my country, the uncertainty of power grid operation mode has become increasingly prominent. The workload of power grid safety and stability analysis and control researchers who rely on typical operating conditions research and analysis has increased dramatically. Relying solely on manpower to adjust the typical power grid operation mode is time-consuming and may miss some special operating scenarios, which may lead to control strategy mismatch. Therefore, it is necessary to combine the experience of mode analysis to improve the level of automation in constructing typical power grid modes.

[0003] Usually, in order to ensure the safe and stable operation of the power grid, mode analysts need to consider the worst and most severe mode conditions for research, so as to ensure that the formulated control strategy can adapt to all working conditions of the power grid, including extreme modes. However, the impact of different factors of the power grid on the safety and stability characteristics of different faults varies greatly, and it is impossible to take all of them into account. Therefore, before formulating different fault strategies in detail, it is necessary to first formulate some typical operating modes, and then study the safety and stability characteristics of expected faults on these modes, grasp the risks of power grid operation, and then conduct in-depth research. Therefore, whether the risks of the power grid can be exposed as much as possible depends on whether the working conditions covered by the typical mode can stimulate the potential safety and stability problems after the expected faults. The typical mode construction that relies on experience inheritance in the past is increasingly difficult to adapt to the development of power grid operation control, and the automation level of mode analysis calculation needs to be improved urgently. Summary of the invention

[0004] In response to the above problems, the present invention proposes a method, device and system for generating typical operating mode scenarios of power systems. By analyzing historical loads and wind and solar energy operating curves, typical operating conditions of different source grid loads under the current power grid are generated, thereby improving the efficiency of power grid mode analysis and calculation.

[0005] In order to achieve the above technical objectives and the above technical effects, the present invention is implemented through the following technical solutions:

[0006] In a first aspect, the present invention provides a method for generating a typical operation mode scenario of a power system, comprising:

[0007] Adjust the power flow mode based on the original data to generate an operation mode set containing the characteristics of typical load operation mode scenarios, typical AC and DC key section operation mode scenarios, typical hydropower operation mode scenarios and typical new energy operation mode scenarios;

[0008] The power flow of the operating modes under different typical scenario combinations is evaluated for safety and stability under N-1 expected faults, and the instability mode is adjusted according to the instability characteristics until all typical operating modes meet the N-1 expected fault safety and stability requirements, generating a typical power system operating mode scenario set for power system analysis and control.

[0009] Optionally, the method for acquiring the typical load operation mode scenario includes:

[0010] Divide the load change history curve of the same power grid in the previous year into multiple time intervals T i , i=1,…,N, and the maximum load in each section is obtained Minimum load

[0011] Calculate the average load in each time period Peaceful high load in, Indicates time segment T i The beginning moment, Indicates time segment T i The end moment; P Sij Indicates time segment T i Internal load P Si Greater than average load The trajectory curve load, represents the starting time of the trajectory, Indicates the end time of the trajectory, j = 1, ..., M, M is an integer natural number, indicating the time segment T i Internal load P Si Greater than average load The number of trajectories;

[0012] Calculate the maximum load growth multiple k, Among them, P MAX is the maximum load of the power grid, and then calculate the peak load P in different time periods respectively. i H , Low load P i L , Flat high load

[0013] The peak load P is generated by adjusting the power flow i H , valley load P i L , flat high load Typical load operation scenarios at different load levels.

[0014] Optionally, based on the analysis and statistics of the load change history curve of the same power grid in the previous year, the peak load, valley load and average load levels are calculated.

[0015] Optionally, the method for acquiring the typical operation mode scenario of the AC / DC key section includes:

[0016] Based on different typical load operation scenarios, the power flow is adjusted to generate an operation mode that maximizes DC power.

[0017] Based on the operation mode that satisfies the maximum DC power and the power operation range of each key AC section in the power grid Through the power flow adjustment, different AC key section power interval extreme value combination scenarios are generated, where λ=1,…,L, L is an integer natural number, representing the total number of AC key sections.

[0018] Optionally, the method for acquiring the typical hydropower operation mode scenario is: generating a typical hydropower operation mode scenario based on the hydropower startup characteristics in the wet and dry seasons;

[0019] Optionally, the method for acquiring the typical hydropower operation mode scenario includes:

[0020] For the dry season, the run-of-river hydropower units in the grid will be shut down. Under the condition of ensuring power balance, power replacement will be carried out in the order of thermal power, wind power and photovoltaic power priority, forming a typical scenario representing the characteristics of the dry season.

[0021] For the flood season, considering that the hydropower units are fully operational and fully powered, while ensuring the power balance, power replacement is carried out in the order of priority power sources: photovoltaic power, wind power, and thermal power, to form a typical scenario representing the characteristics of the flood season.

[0022] Optionally, the method for acquiring the typical operation mode scenario of new energy is: based on the characteristics of photovoltaic and wind power output during the day and night, generating the typical operation mode scenario of new energy.

[0023] Optionally, the method for acquiring the typical operation mode scenario of new energy includes:

[0024] Calculate T for different time intervals in the previous year i The maximum simultaneous generation rate of photovoltaic and wind power is Si , γ Si , i=1,…,N, in, The previous year interval T i The maximum active power output and installed capacity of photovoltaic power, and the maximum active power output and installed capacity of wind power within the area;

[0025] Calculate the maximum output of photovoltaic and wind power in different time intervals i , γ i , in, is the time interval T i Domestic photovoltaic and wind power installations;

[0026] For different time intervals T i The operating mode data in the system is used to adjust the photovoltaic output to achieve x i , the priority order of power replacement is thermal power, hydropower, and wind power, forming a typical scenario of large-scale photovoltaic power generation during the day; adjusting the wind power output to γ ​​through power replacement i , all photovoltaic power is shut down, and the priority order of power source replacement is photovoltaic power, thermal power, and hydropower, forming a typical scenario of large-scale wind power generation and complete photovoltaic shutdown at night.

[0027] In a second aspect, the present invention provides a device for generating a typical operation mode scenario of a power system, comprising:

[0028] The first generation module is used to adjust the power flow mode based on the original data, and generate an operation mode set including the characteristics of typical load operation mode scenarios, typical AC and DC key section operation mode scenarios, typical hydropower operation mode scenarios and typical new energy operation mode scenarios;

[0029] The second generation module is used to perform N-1 expected fault safety and stability assessment on the power flow of the operating mode under different typical scenario combinations, adjust the instability mode according to the instability characteristics, until all typical operating modes meet the N-1 expected fault safety and stability requirements, and generate a typical power system operating mode scenario set for power system analysis and control.

[0030] In a third aspect, the present invention provides a system for generating a typical operation mode scenario of a power system, including a storage medium and a processor;

[0031] The storage medium is used to store instructions;

[0032] The processor is configured to operate according to the instructions to execute the steps of the method according to any one of the first aspects.

[0033] Compared with the prior art, the present invention has the following beneficial effects:

[0034] The arrangement of typical modes for existing power grid safety and stability analysis mainly relies on the experience of mode analysts, which may omit typical mode operation scenarios and lead to lack of risk mode control, and the efficiency of mode generation is low. To this end, the present invention proposes a method, device and system for generating typical operation mode scenarios of a power system, which can quickly generate power grid operation modes containing different typical scenarios based on historical load and wind and solar energy operation curve analysis, which is conducive to improving the efficiency of power grid mode analysis generation. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to make the content of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments and in conjunction with the accompanying drawings, wherein:

[0036] Figure 1 The present invention is a flowchart of a method for generating a typical operation scenario of a power system according to an embodiment of the present invention. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the scope of protection of the present invention.

[0038] The application principle of the present invention is described in detail below in conjunction with the accompanying drawings.

[0039] Example 1

[0040] An embodiment of the present invention provides a method for generating a typical operation mode scenario of a power system, which specifically includes the following steps:

[0041] (1) Adjust the power flow mode based on the original data to generate an operation mode set containing the characteristics of typical load operation mode scenarios, typical AC and DC key section operation mode scenarios, typical hydropower operation mode scenarios, and typical new energy operation mode scenarios;

[0042] (2) The power flow of the operating modes under different typical scenario combinations is evaluated for safety and stability under N-1 expected faults, and the instability mode is adjusted according to the instability characteristics until all typical operating modes meet the safety and stability requirements of N-1 expected faults, thereby generating a set of typical power system operating mode scenarios for power system analysis and control.

[0043] In the specific implementation process, Figure 1 As shown in the figure, the method for generating a typical operation scenario of a power system first needs to input the original boundary and historical operation information of the power grid, including: the electromechanical transient simulation calculation data of the power grid, the key AC section and its power operation range, the power source type and installed capacity, the maximum load P MAX, DC capacity, wind and solar power output and historical annual operation data of load, N-1 anticipated faults and other information; then generate typical scenarios of load operation mode, typical scenarios of AC and DC key section operation mode, typical scenarios of hydropower operation mode and typical scenarios of new energy operation mode in turn; finally, conduct N-1 anticipated fault safety and stability assessment, adjust the instability mode according to the instability characteristics, until all typical operation modes meet the N-1 anticipated fault safety and stability requirements, and generate a set of typical power system operation mode scenarios for power system analysis and control.

[0044] In a specific implementation of the embodiment of the present invention, the method for acquiring the typical load operation mode scenario is to generate the typical load operation mode scenario based on the historical annual load operation information; specifically, the method comprises the following sub-steps:

[0045] Divide the load change history curve of the same power grid in the previous year into multiple time intervals T i , i=1,…,N, and the maximum load in each section is obtained Minimum load

[0046] Calculate the average load in each segment Peaceful high load in, Indicates time segment T i The beginning moment, Indicates time segment T i The end moment; P Sij Indicates time segment T i Internal load P Si Greater than average load The trajectory curve load, represents the starting time of the trajectory, Indicates the end time of the trajectory, j = 1, ..., M, M is an integer natural number, indicating the time segment T i Internal load P Si Greater than average load The number of trajectories;

[0047] Calculate the maximum load growth multiple k, Among them, the maximum load of the power grid P MAX , and then calculate the peak load P in different time periods i H , Low load P i L , Flat high load

[0048] The peak load P is generated by adjusting the power flow i H , valley load P i L , flat high load Typical load operation mode data for different load levels.

[0049] In a specific implementation of the embodiment of the present invention, the method further includes: based on the analysis and statistics of the load change history curve of the same power grid in the previous year, calculating the peak load, valley load and average load level, and extracting the load characteristic information that is relatively typical for power grid analysis and calculation. This is because for offline power grid calculation, it is impossible to calculate the power grid mode at every moment, and only a conservative approach can be adopted to formulate control strategies by considering some mode characteristic quantities with typical significance characteristics to ensure the adaptability of the strategy in severe and typical scenarios.

[0050] In a specific implementation of the embodiment of the present invention, the method for acquiring the typical operation mode scenario of the AC / DC key section includes:

[0051] Based on different typical load operation modes, the power flow is adjusted to generate the operation mode that satisfies the maximum DC power;

[0052] Based on the operation mode that satisfies the maximum DC power and the power operation range of each key AC section in the power grid Through the power flow adjustment, different AC key section power interval extreme value combination scenarios are generated, where λ=1,…,L, L is an integer natural number, representing the total number of AC key sections.

[0053] In a specific implementation of the embodiment of the present invention, the method for acquiring the typical hydropower operation mode scenario is: based on the hydropower startup characteristics in the wet and dry seasons, generating the typical hydropower operation mode scenario; specifically comprising the following sub-steps:

[0054] Taking into account the climate of the power grid area, the run-of-river hydropower units in the grid are shut down during the dry season. Under the condition of ensuring power balance, power is replaced by power replacement in the order of thermal power, wind power, and photovoltaic power, forming a typical scenario representing the characteristics of the dry season.

[0055] For the flood season, considering that the hydropower units are fully operational and fully powered, while ensuring the power balance, power replacement is carried out in the order of priority power sources: photovoltaic power, wind power, and thermal power, to form a typical scenario representing the characteristics of the flood season.

[0056] In a specific implementation of the embodiment of the present invention, the method for acquiring the typical operation mode scenario of new energy is: based on the characteristics of photovoltaic and wind power output during the day and night, a typical operation mode scenario of new energy is generated, which specifically includes the following sub-steps:

[0057] Calculate T for different time intervals in the previous year i The maximum simultaneous generation rate of photovoltaic and wind power is Si , γ Si , i=1,…,N, in, The previous year interval T i The maximum active power output and installed capacity of photovoltaic power, and the maximum active power output and installed capacity of wind power within the area;

[0058] Calculate the maximum output of photovoltaic and wind power in different time intervals i , γ i , in, is the time interval T i Domestic photovoltaic and wind power installations;

[0059] For different time intervals T i The operating mode data in the system is used to adjust the photovoltaic output to achieve x i , the priority order of power replacement is thermal power, hydropower, and wind power, forming a typical scenario of large-scale photovoltaic power generation during the day; adjusting the wind power output to γ ​​through power replacement i , all photovoltaic power is shut down, and the priority order of power source replacement is photovoltaic power, thermal power, and hydropower, forming a typical scenario of large-scale wind power generation and complete photovoltaic shutdown at night.

[0060] In a specific implementation of the embodiment of the present invention, the power flow under different typical operation mode scenario combinations is evaluated for N-1 expected fault safety and stability, and the instability mode is adjusted according to the instability characteristics until all typical operation modes meet the N-1 expected fault safety and stability requirements, specifically:

[0061] (1) If the instability feature is an overload problem of the associated line after the AC component N-1 fault, the feed-in DC single-pole lockout or the single converter lockout fault, the output of the units in the grid at the receiving end of the overloaded component shall be increased first. Secondly, if the thermal stability constraint after the N-1 fault cannot be guaranteed, for the grid with multiple feed-in interconnection channels, the output of the units in the grid at the sending end of the interconnection line section shall be increased in descending order according to the transferable margin capacity of each interconnection line section; if the instability feature is an overload problem of the associated line after the external DC single-pole lockout or the single converter lockout fault, priority shall be given to reducing the DC power transmission power and correspondingly reducing the output of the supporting power supply.

[0062] (2) If the instability feature is a power angle synchronization problem after the N-1 fault, then according to the EEAC quantitative grouping technology, the output of the critical group units is reduced first, and the output of the remaining group units is coordinated to increase;

[0063] (3) If the instability feature is a high frequency problem at the sending end or a low frequency problem at the receiving end after the AC element N-1 fails, it is necessary to reduce the output of the units in the sending end network and increase the output of the units in the receiving end network;

[0064] (4) If the instability characteristics are low frequency or low voltage problems after a feed-in DC single-pole lockout or single converter lockout fault, it is necessary to reduce the DC feed-in power and increase the output of the units in the grid;

[0065] (5) If the instability characteristics are high frequency, DC converter station or nearby renewable energy overvoltage problems or local low voltage problems caused by power flow after a DC single-pole lockout or single converter lockout failure, it is necessary to reduce the DC transmission power and give priority to reducing the output of the DC supporting power supply units. If the output is insufficient, reduce the output of other units in the network.

[0066] Example 2

[0067] Based on the same inventive concept as that of Embodiment 1, an embodiment of the present invention provides a device for generating a typical operation mode scenario of a power system, comprising:

[0068] The first generation module is used to adjust the power flow mode based on the original data, and generate an operation mode set including the characteristics of typical load operation mode scenarios, typical AC and DC key section operation mode scenarios, typical hydropower operation mode scenarios and typical new energy operation mode scenarios;

[0069] The second generation module is used to perform N-1 expected fault safety and stability assessment on the power flow of the operating mode under different typical scenario combinations, adjust the instability mode according to the instability characteristics, until all typical operating modes meet the N-1 expected fault safety and stability requirements, and generate a typical power system operating mode scenario set for power system analysis and control.

[0070] The rest are the same as in Example 1.

[0071] Example 3

[0072] An embodiment of the present invention provides a system for generating a typical operation mode scenario of a power system, including a storage medium and a processor;

[0073] The storage medium is used to store instructions;

[0074] The processor is used to operate according to the instructions to execute the steps of the method according to any one of Embodiment 1.

[0075] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A method for generating a typical operation scenario of a power system, characterized in that: include: Adjust the power flow mode based on the original data to generate an operation mode set containing the characteristics of typical load operation mode scenarios, typical AC and DC key section operation mode scenarios, typical hydropower operation mode scenarios and typical new energy operation mode scenarios; Conduct N-1 expected fault safety and stability assessments on the power flows of the operating modes under different typical scenario combinations, adjust the instability modes according to the instability characteristics, until all typical operating modes meet the N-1 expected fault safety and stability requirements, and generate a typical operating mode scenario set for power system analysis and control; The method for obtaining the typical scenario of the load operation mode includes: Divide the load change history curve of the same power grid in the previous year into multiple time intervals T i , i=1,...,N, and the maximum load in each section is obtained Minimum load Calculate the average load in each time period Peaceful high load in, Indicates time segment T i The beginning moment, Indicates time segment T i The end moment; P Sij Indicates time segment T i Internal load P Si Greater than average load The trajectory curve load, represents the starting time of the trajectory, Indicates the end time of the trajectory, j = 1, ..., M, M is an integer natural number, indicating the time segment T i Internal load P Si Greater than average load The number of trajectories; Calculate the maximum load growth multiple k, Among them, P MAX is the maximum load of the power grid, and then calculate the peak load P in different time periods respectively. i H , Low load P i L , Flat high load The peak load P is generated by adjusting the power flow i H , valley load P i L , flat high load Typical scenarios of load operation modes at different load levels; The method for obtaining the typical scenario of the AC / DC key section operation mode includes: Based on typical scenarios of different load operation modes, the power flow is adjusted to generate an operation mode that maximizes DC power. Based on the operation mode that satisfies the maximum DC power and the power operation range of each key AC section in the power grid Through the power flow adjustment, different AC key section power interval extreme value combination scenarios are generated, where λ=1,...,L, L is an integer natural number, representing the total number of AC key sections; The method for obtaining the typical scenario of hydropower operation mode is as follows: based on the characteristics of hydropower startup in the wet and dry seasons, a typical scenario of hydropower operation mode is generated; The method for obtaining the typical scenario of hydropower operation mode includes: For the dry season, the run-of-river hydropower units in the grid will be shut down. Under the condition of ensuring power balance, power replacement will be carried out in the order of thermal power, wind power and photovoltaic power priority, forming a typical scenario representing the characteristics of the dry season. For the flood season, consider fully operating the hydropower units and, while ensuring power balance, replace the power in the order of photovoltaic, wind power, and thermal power priority, to form a typical scenario representing the characteristics of the flood season. The method for acquiring the typical scenario of the new energy operation mode is as follows: based on the characteristics of photovoltaic and wind power output during the day and night, a typical scenario of the new energy operation mode is generated; The method for obtaining the typical scenario of the new energy operation mode includes: Calculate T for different time intervals in the previous year i The maximum simultaneous generation rate of photovoltaic and wind power χ Si , γ Si , i=1,...,N, in, The previous year interval T i The maximum active power output and installed capacity of photovoltaic power, and the maximum active power output and installed capacity of wind power within the area; Calculate the maximum output of photovoltaic and wind power in different time intervals i , γ i , in, is the time interval T i Domestic photovoltaic and wind power installations; For different time intervals T i The operating mode data in the system is used to adjust the photovoltaic output to achieve x i , the priority order of power supply replacement is thermal power, hydropower, and wind power, forming a typical scenario of large-scale photovoltaic power generation during the day; adjusting the wind power output to γ ​​through power supply replacement i , all photovoltaic power is shut down, and the priority order of power source replacement is photovoltaic power, thermal power, and hydropower, forming a typical scenario of large-scale wind power generation and complete photovoltaic shutdown at night.

2. A method for generating a typical operation scenario of a power system according to claim 1, characterized in that: Based on the analysis and statistics of the load change history curve of the same power grid in the previous year, the peak load, valley load and average load levels are calculated.

3. A device for generating a typical operation mode scenario of a power system, characterized in that: include: The first generation module is used to adjust the power flow mode based on the original data, and generate an operation mode set including the characteristics of typical load operation mode scenarios, typical AC and DC key section operation mode scenarios, typical hydropower operation mode scenarios and typical new energy operation mode scenarios; The second generation module is used to perform N-1 expected fault safety and stability assessment on the power flow of the operation mode under different typical scenario combinations, adjust the instability mode according to the instability characteristics, until all typical operation modes meet the N-1 expected fault safety and stability requirements, and generate a typical operation mode scenario set of the power system for power system analysis and control; The method for obtaining the typical scenario of the load operation mode includes: Divide the load change history curve of the same power grid in the previous year into multiple time intervals T i , i=1,...,N, and the maximum load in each section is obtained Minimum load Calculate the average load in each time period Peaceful high load in, Indicates time segment T i The beginning moment, Indicates time segment T i The end moment; P Sij Indicates time segment T i Internal load P Si Greater than average load The trajectory curve load, represents the starting time of the trajectory, Indicates the end time of the trajectory, j = 1, ..., M, M is an integer natural number, indicating the time segment T i Internal load P Si Greater than average load The number of trajectories; Calculate the maximum load growth multiple k, Among them, P MAX is the maximum load of the power grid, and then calculate the peak load P in different time periods respectively. i H , Low load P i L , Flat high load The peak load P is generated by adjusting the power flow i H , valley load P i L , flat high load Typical scenarios of load operation modes at different load levels; The method for obtaining the typical scenario of the AC / DC key section operation mode includes: Based on typical scenarios of different load operation modes, the power flow is adjusted to generate an operation mode that maximizes DC power. Based on the operation mode that satisfies the maximum DC power and the power operation range of each key AC section in the power grid Through the power flow adjustment, different AC key section power interval extreme value combination scenarios are generated, where λ=1,...,L, L is an integer natural number, representing the total number of AC key sections; The method for obtaining the typical scenario of hydropower operation mode is as follows: based on the characteristics of hydropower startup in the wet and dry seasons, a typical scenario of hydropower operation mode is generated; The method for obtaining the typical scenario of hydropower operation mode includes: For the dry season, the run-of-river hydropower units in the grid will be shut down. Under the condition of ensuring power balance, power replacement will be carried out in the order of thermal power, wind power and photovoltaic power priority, forming a typical scenario representing the characteristics of the dry season. For the flood season, consider fully operating the hydropower units and, while ensuring power balance, replace the power in the order of photovoltaic, wind power, and thermal power priority, to form a typical scenario representing the characteristics of the flood season. The method for acquiring the typical scenario of the new energy operation mode is as follows: based on the characteristics of photovoltaic and wind power output during the day and night, a typical scenario of the new energy operation mode is generated; The method for obtaining the typical scenario of the new energy operation mode includes: Calculate T for different time intervals in the previous year i The maximum simultaneous generation rate of photovoltaic and wind power χ Si , γ Si , i=1,...,N, in, The previous year interval T i The maximum active power output and installed capacity of photovoltaic power, and the maximum active power output and installed capacity of wind power within the area; Calculate the maximum output of photovoltaic and wind power in different time intervals i , γ i , in, is the time interval T i Domestic photovoltaic and wind power installations; For different time intervals T i The operating mode data in the system is used to adjust the photovoltaic output to achieve x i , the priority order of power supply replacement is thermal power, hydropower, and wind power, forming a typical scenario of large-scale photovoltaic power generation during the day; adjusting the wind power output to γ ​​through power supply replacement i , all photovoltaic power is shut down, and the priority order of power source replacement is photovoltaic power, thermal power, and hydropower, forming a typical scenario of large-scale wind power generation and complete photovoltaic shutdown at night.

4. A typical operation mode scenario generation system for a power system, characterized by: including storage media and processors; The storage medium is used to store instructions; The processor is configured to operate according to the instructions to execute the steps of the method according to any one of claims 1 to 2.

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