Flexible and configurable power system rotational inertia real-time monitoring method and system

Abstract

The invention discloses a flexible and configurable real-time monitoring method and system for the rotational inertia of an electric power system. The flexible and configurable real-time monitoring method for the rotational inertia of the electric power system comprises the following steps: acquiring basic data and environmental data from a specified data source; inertia monitoring index information configured by a user is read, and calculation of inertia monitoring indexes is completed according to the basic data and the environment data; and reading visual display information configured by a user, and carrying out visual display on the calculated inertia monitoring index. According to the flexible and configurable real-time monitoring method and system for the rotational inertia of the electric power system, the real-time monitored inertia monitoring index and visual display of the rotational inertia of the electric power system can be configured so as to meet the requirement that different users have own operation habits; the hobbies and personalized needs to better support the development of businesses are urgent problems to be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of power system operation control, and in particular to a flexible and configurable power system rotational inertia real-time monitoring method and system. Background Art

[0002] With the increase in the proportion of renewable energy and power electronic equipment, the power system's rotational inertia has been greatly reduced. According to relevant forecasts, the maximum inertia constant of my country's power grid in 2030 calculated by the method of "synchronous machine rotor kinetic energy / total power supply capacity" will be less than 2s, which is significantly different from 7.62s in 2011. The power system's rotational inertia has been greatly reduced, and the reduction in rotational inertia has led to a significant decrease in the system's frequency response capability. When the power grid is disturbed, such as load mutation or failure, the dynamic response of the frequency will become more intense, the frequency deviation amplitude will increase significantly, the frequency change rate will accelerate, and the recovery time required to return to a stable state will also be extended, and the frequency stability of the power system faces severe challenges. At the same time, renewable energy has unstable kinetic energy input, which leads to the instability of its rotational inertia, and the power grid's inertia support and frequency regulation capabilities are greatly weakened, and safe and stable operation faces new challenges. In this context, the online monitoring, evaluation, early warning and control software for power system inertia came into being. The software monitors and analyzes key inertia indicators, automatically identifies the inertia safety risks of the system online and displays them to dispatching and operating personnel in different safety levels, assists power grid dispatching personnel in identifying periods of low system inertia in the current and future operating periods and locates potential weak inertia areas, provides decision-making basis for the formulation and arrangement of power grid operation plans, improves the power company's inertia response and regulation capabilities to deal with disturbances, and reduces the risk of safe operation of the power grid. In the practical stage of the software system, it was found that due to differences in the current status of the power grid in different regions, the key indicators may be different, and different users have their own operating habits, preferences and personalized needs. How to meet the overall and personalized needs of users and better support the development of business is an urgent problem to be solved. Summary of the invention

[0003] Technical problem to be solved by the present invention: In view of the above-mentioned problems in the prior art, a flexible and configurable real-time monitoring method and system for the rotational inertia of an electric power system is provided. The present invention aims to make the inertia monitoring indicators and visual display of the real-time monitoring of the rotational inertia of the electric power system configurable to meet the operating habits, preferences and personalized needs of different users to better support the development of business, which is an urgent problem to be solved.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: A flexible and configurable real-time monitoring method for rotational inertia of a power system comprises the following steps: S1, obtain basic data and environmental data from the specified data source; S2, read the inertia monitoring index information configured by the user, and complete the calculation of the inertia monitoring index according to the basic data and environmental data; S3, reading the visualization information configured by the user, and visually displaying the calculated inertia monitoring index.

[0005] Optionally, before step S2, the process further includes performing human-computer interaction with the user to save the inertia monitoring index information configured by the user: S101, respond to and verify the user's login operation request, if the verification is successful, jump to step S102; otherwise, end and exit; S102, determining whether the user has activated the configuration function of the inertia monitoring index information, if the user has activated the configuration function of the inertia monitoring index information, jumping to step S103; otherwise, ending and exiting; S103, obtaining the regional level selected by the user; S104, obtaining an inertia monitoring index item selected by a user; S105, determining whether the user executes to cancel the current configuration, if so, jumping to step S103; otherwise, determining whether the user makes the configuration result effective, if so, saving the configuration result of the current configuration; S106, determining whether the user executes configuration result rollback, if the configuration result rollback is executed, the configuration result of the last configuration is effective, and the configuration result of the current configuration is cleared, and the process ends and exits.

[0006] Optionally, before step S2, the process further includes performing human-computer interaction with the user to save the visual display information configured by the user: S201, respond to and verify the user's login operation request, if the verification is successful, jump to step S202; otherwise, end and exit; S202, determining whether the user has activated the configuration function of the visual display information, if the user has activated the configuration function of the visual display information, jumping to step S203; otherwise, ending and exiting; S203, obtaining the visual display component selected by the user and its component position; S204, determining whether the user executes to cancel the current configuration, if so, jumping to step S203; otherwise, determining whether the user makes the configuration result effective, if so, saving the configuration result of the current configuration; S205, determining whether the user executes a configuration result rollback. If the configuration result rollback is executed, the configuration result of the last configuration is effective, and the configuration result of the current configuration is cleared, and the process ends and exits.

[0007] Optionally, when obtaining basic data and environmental data from a designated data source in step S1, the data source of the basic data is part or all of a SCADA system, a WAMS system, and a production management system, and the data source of the environmental data is part or all of a PMS system, a GIS system, and a meteorological system.

[0008] Optionally, the user-configured inertia monitoring index information read in step S2 includes a system equivalent inertia time constant and a system-level kinetic energy, and a function expression for calculating the system equivalent inertia time constant and the system-level kinetic energy according to the basic data and the environmental data is: , , In the above formula, is the system equivalent inertia time constant; is the number of all operating synchronous units in the system; , , are the inertia time constant, rated capacity and start / stop status of the i-th synchronous unit in the system, and ∈{0, 1}; The number of all new energy stations in operation in the system; , , are the virtual inertia time constant, rated capacity and operating status of the i-th new energy station in the system, and ∈{0, 1}; It is the system level kinetic energy; is the rotational kinetic energy of the i-th synchronous unit in the system; It is the sum of kinetic energy in other forms, and the sum of kinetic energy in other forms includes the sum of kinetic energy of asynchronous motors and phase regulators.

[0009] Optionally, the user-configured inertia monitoring index information read in step S2 includes the maximum value of the virtual inertia time constant of the wind farm station, the maximum value of the virtual inertia time constant of the photovoltaic station, and the maximum value of the virtual inertia time constant of the energy storage station, and the function expression for completing the calculation of the maximum value of the virtual inertia time constant of the wind farm station, the maximum value of the virtual inertia time constant of the photovoltaic station, and the maximum value of the virtual inertia time constant of the energy storage station according to the basic data and the environmental data is: , , , In the above formula, is the maximum value of the virtual inertia time constant of the wind farm station; Provide energy storage for wind farms; is the total number of wind turbines in the wind farm; The first i Typhoon turbine rated power; is the maximum value of the virtual inertia time constant of the photovoltaic station; Provide energy storage for photovoltaic stations; is the total number of photovoltaic arrays in the photovoltaic station; It is the first photovoltaic station i Rated power of each PV array; is the maximum value of the virtual inertia time constant of the energy storage station; Provide energy storage for energy storage stations; is the total number of energy storage units in the energy storage station; is the rated power of the i-th energy storage unit in the energy storage station.

[0010] Optionally, the visualization display component includes some or all components for displaying the spatiotemporal distribution diagram of the inertia monitoring indicator, a horizontal trend diagram, a minimum demand value, a safety margin, periods of low system inertia in current and future operating periods, and potential inertia weak areas.

[0011] In addition, the present invention also provides a flexible and configurable real-time monitoring system for rotational inertia of an electric power system, comprising a microprocessor and a memory connected to each other, wherein the microprocessor is programmed or configured to execute the flexible and configurable real-time monitoring method for rotational inertia of an electric power system.

[0012] In addition, the present invention also provides a computer-readable storage medium, in which a computer program or instruction is stored. The computer program or instruction is programmed or configured to execute the flexible and configurable real-time monitoring method of the rotational inertia of the power system through a processor.

[0013] In addition, the present invention also provides a computer program product, including a computer program or instructions, which are programmed or configured to execute the flexible and configurable real-time monitoring method of power system rotation inertia through a processor.

[0014] Compared with the prior art, the present invention mainly has the following advantages: the flexible and configurable real-time monitoring method for the rotational inertia of a power system of the present invention comprises the following steps: obtaining basic data and environmental data from a specified data source; reading the inertia monitoring index information configured by the user, and completing the calculation of the inertia monitoring index according to the basic data and environmental data; reading the visualization display information configured by the user, and visually displaying the calculated inertia monitoring index. The flexible and configurable real-time monitoring method and system for the rotational inertia of a power system of the present invention are intended to realize the configurability of the inertia monitoring index and visualization display of the real-time monitoring of the rotational inertia of the power system to meet the needs of different users who have their own operating habits, preferences and personalized needs to better support the development of the business, which is an urgent problem to be solved. Compared with the prior art, the flexible and configurable real-time monitoring method for the rotational inertia of a power system of the present invention can provide users with customized functions in terms of monitoring indicators and visualization through configuration, and meet the personalized needs of different users in the field of inertia monitoring business. (1) Adapting to different user needs. For users with different roles and needs, the configurability of monitoring indicators and visualization can ensure that each user can customize the system functions according to their own needs to carry out inertia monitoring business. (2) Improving user experience and work efficiency. Users can focus on key indicators through monitoring indicators and configurable visualizations. At the same time, they can customize the display page according to their work habits and needs, put key indicators and common functions in a prominent position, reduce clicks and pull-down operations, and improve work efficiency. (3) Enhance system flexibility. Monitoring indicators and configurable visualizations can truly allow system developers to focus on system usage scenarios and needs, and continuously dig deeper into the business based on user feedback, focusing on scenarios, and enhancing the flexibility and scalability of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Schematic diagram of the basic flow of the method of the embodiment of the present invention.

[0016] Figure 2 The figure is a schematic diagram of the configuration process of inertia monitoring indicator information according to an embodiment of the present invention.

[0017] Figure 3 The figure is a schematic diagram of the configuration process of visually displaying information according to an embodiment of the present invention. DETAILED DESCRIPTION

[0018] The present invention will be further described in detail below with reference to the accompanying drawings.

[0019] Given that the existing inertia monitoring system has fixed monitoring indicators and fixed visualization display styles, when users of different roles in different regions have personalized needs, centralized demand processing is often used. The period from demand submission to demand resolution is too long, and sometimes due to conflicts between demands and other reasons, demands are often traded off, resulting in user needs not being met and the system being unable to effectively support the development of inertia monitoring services. Therefore, the present invention provides a flexible and configurable method and system for real-time monitoring of rotational inertia of a power system to achieve configurability in inertia indicators and visualization. Users of different roles in different regions can customize the monitored inertia indicators and display pages according to their personalized needs, thereby meeting user needs in inertia monitoring business scenarios. Figure 1 As shown, the flexible and configurable real-time monitoring method of the power system moment of inertia of this embodiment includes the following steps: S1, obtain basic data and environmental data from the specified data source; S2, read the inertia monitoring index information configured by the user, and complete the calculation of the inertia monitoring index according to the basic data and environmental data; S3, reading the visualization information configured by the user, and visually displaying the calculated inertia monitoring index.

[0020] The method of this embodiment also has the function of configuring inertia monitoring index information. Figure 2 As shown, before step S2, this embodiment also includes human-computer interaction with the user to save the inertia monitoring index information configured by the user: S101, respond to and verify the user's login operation request, jump to step S102 if the verification is passed; otherwise, end and exit; in this embodiment, after successfully logging in and entering the system, the user can choose to start the "monitoring indicator configuration" function. If the user does not start this function, the indicator monitored by the system is the indicator item configured by the user last time (if the user has never started this function, the inertia indicator item monitored by the system is the system default value); S102, determining whether the user has activated the configuration function of the inertia monitoring index information, if the user has activated the configuration function of the inertia monitoring index information, jumping to step S103; otherwise, ending and exiting; S103, obtaining the regional level selected by the user; in this embodiment, the monitoring indicators are classified according to the regional level relationship of "province-prefecture / city" to form an indicator library, and accurate and clear options and parameter descriptions are provided to help users complete the selection of monitoring indicator items of interest at different regional levels through the interface, and generate a "region-indicator item" corresponding relationship data set; after the user starts the "monitoring indicator configuration" function, the user selects the inertia indicator items of interest at the two regional levels of "province / prefecture / city" in the operation page according to the actual situation of the power grid or their own needs; S104, obtaining an inertia monitoring index item selected by a user; S105, determining whether the user executes to cancel the current configuration, if so, jumping to step S103; otherwise, determining whether the user makes the configuration result effective, if so, saving the configuration result of the current configuration; S106, determining whether the user executes configuration result rollback, if the configuration result rollback is executed, the configuration result of the last configuration is effective, and the configuration result of the current configuration is cleared, and the process ends and exits.

[0021] If you want to cancel the configuration information when interacting with the user to save the inertia monitoring indicator information configured by the user, you can reset the data and reselect the inertia indicator item to be monitored. After the user completes the configuration of the inertia indicator item, perform the configuration result storage and result effectiveness settings. After the configuration result storage and result effectiveness settings are successfully set, the system will perform indicator calculations based on the indicator items configured by the user to support the user in carrying out inertia monitoring services. After the user completes the indicator item configuration and the configuration data effectiveness settings and wants to use the monitoring indicator item configured last time, the data can be rolled back to overwrite the current indicator configuration information with the last effective indicator configuration information, and the system will no longer store the current indicator configuration information.

[0022] The method of this embodiment also has the function of configuring visual display information. Based on the components in the default display page, it provides component selection, component dragging, and component alignment functions. Users can personalize the component positions in the display interface according to their personal needs and preferences, and can save the customized component position information. When the display interface is opened next time, each component will be displayed according to the position information customized by the user last time, meeting the user's personalized setting needs for components in the display page. Figure 3 As shown, before step S2, this embodiment also includes human-computer interaction with the user to save the visual display information configured by the user: S201, respond to and verify the user's login operation request, if the verification is successful, jump to step S202; otherwise, end and exit; S202, determining whether the user has activated the configuration function of the visual display information, if the user has activated the configuration function of the visual display information, jumping to step S203; otherwise, ending and exiting; S203, obtaining the visual display component selected by the user and its component position; S204, determining whether the user executes to cancel the current configuration, if so, jumping to step S203; otherwise, determining whether the user makes the configuration result effective, if so, saving the configuration result of the current configuration; S205, determining whether the user executes a configuration result rollback. If the configuration result rollback is executed, the configuration result of the last configuration is effective, and the configuration result of the current configuration is cleared, and the process ends and exits.

[0023] In this embodiment, when human-computer interaction is performed with the user to save the visual display information configured by the user, the user opens the online monitoring system for the inertia risk of the power grid and logs in first. After successfully logging in, the user enters the system and can choose to start the "visual configuration" function. If the user does not start this function, the location information of the component is the information configured by the last user (if the user has never started this function, the location information of the component is the system default value). After the user starts the "visual configuration" function, according to their own needs, by selecting, moving, aligning and other operations on the component, the display position of the component is personalized. After the user completes the visual configuration, the configuration result storage and result effectiveness settings are performed. After the configuration result storage and result effectiveness settings are successfully set, the system will display the component according to the component position configured by the user. When the user completes the visual configuration and the configuration data effectiveness settings and wants to use the last configured visual configuration data, the data can be rolled back to overwrite the current visual configuration data with the last effective visual configuration data, and the system will no longer store the current visual configuration data.

[0024] Regarding the configuration of inertia monitoring indicator information and visual display information, on the one hand, the method of this embodiment also has the function of configuration saving and recovery, which realizes the function of saving and restoring the result information after the monitoring indicator configuration and the visual configuration. It is capable of storing the "region-indicator item" pair relationship data set generated after the monitoring indicator configuration and the component location information generated after the visual configuration, and also has the function of canceling the configuration and restoring the "region-indicator item" pair relationship data set and component location information to the result information generated after the last configuration. On the other hand, the method of this embodiment also has the function of previewing the results after the visual configuration. When the user performs the visual configuration, he can view the changes in the display effect in real time to enhance the user's configuration experience.

[0025] When basic data and environmental data are obtained from the designated data source in step S1 of this embodiment, the data source of the basic data (such as node frequency, node power, unit output, load size, AC / DC interconnection line power, equipment data, etc.) is part or all of the SCADA system, WAMS system, and production management system, and the data source of the environmental data (such as equipment location distribution information, ambient temperature, ambient humidity, ambient weather, etc.) is part or all of the PMS system, GIS system, and meteorological system.

[0026] The user-configured inertia monitoring index information read in step S2 of this embodiment includes the system equivalent inertia time constant and the system level kinetic energy, and the function expression for calculating the system equivalent inertia time constant and the system level kinetic energy according to the basic data and the environmental data is: , , In the above formula, is the system equivalent inertia time constant; is the number of all operating synchronous units in the system; , , are the inertia time constant, rated capacity and start / stop status of the i-th synchronous unit in the system, and ∈{0, 1}; The number of all new energy stations in operation in the system; , , are the virtual inertia time constant, rated capacity and operating status of the i-th new energy station in the system, and ∈{0, 1}; It is the system level kinetic energy; is the rotational kinetic energy of the i-th synchronous unit in the system; It is the sum of kinetic energy in other forms, and the sum of kinetic energy in other forms includes the sum of kinetic energy of asynchronous motors and phase regulators.

[0027] The user-configured inertia monitoring index information read in step S2 of this embodiment includes the maximum value of the virtual inertia time constant of the wind farm station, the maximum value of the virtual inertia time constant of the photovoltaic station, and the maximum value of the virtual inertia time constant of the energy storage station, and the function expression for completing the calculation of the maximum value of the virtual inertia time constant of the wind farm station, the maximum value of the virtual inertia time constant of the photovoltaic station, and the maximum value of the virtual inertia time constant of the energy storage station according to the basic data and the environmental data is: , , , In the above formula, is the maximum value of the virtual inertia time constant of the wind farm station; Provide energy storage for wind farms; is the total number of wind turbines in the wind farm; The first i Typhoon turbine rated power; is the maximum value of the virtual inertia time constant of the photovoltaic station; Provide energy storage for photovoltaic stations; is the total number of photovoltaic arrays in the photovoltaic station; It is the first photovoltaic station i Rated power of each PV array; is the maximum value of the virtual inertia time constant of the energy storage station; Provide energy storage for energy storage stations; is the total number of energy storage units in the energy storage station; is the rated power of the i-th energy storage unit in the energy storage station.

[0028] In this embodiment, the visualization display component includes some or all components for displaying the spatiotemporal distribution diagram of the inertia monitoring indicator, the horizontal trend diagram, the minimum demand value, the safety margin, the periods of low system inertia in the current and future operating periods, and the potential inertia weak areas.

[0029] In summary, in order to solve existing problems and meet the needs of users at different levels, the flexibly configurable real-time monitoring method for rotational inertia of a power system in this embodiment realizes a flexibly configurable mechanism for monitoring indicators and visual display. In terms of monitoring indicators, the system classifies the inertia indicators of different regional levels and establishes an inertia indicator library. Users select inertia indicator items of interest from the inertia indicator library according to the regional level for monitoring and analysis. In terms of visual display, users can customize the position of each indicator display area in the interface, thereby realizing flexible and configurable component positions, which is conducive to promoting the smooth development of business.

[0030] In addition, this embodiment also provides a flexible and configurable real-time monitoring system for the moment of inertia of an electric power system, comprising a microprocessor and a memory connected to each other, wherein the microprocessor is programmed or configured to execute the flexible and configurable real-time monitoring method for the moment of inertia of an electric power system.

[0031] In addition, this embodiment also provides a computer-readable storage medium, in which a computer program or instruction is stored. The computer program or instruction is programmed or configured to execute the flexible and configurable real-time monitoring method of the rotational inertia of the power system through a processor.

[0032] In addition, this embodiment also provides a computer program product, including a computer program or instructions, which are programmed or configured to execute the flexible and configurable real-time monitoring method of power system rotation inertia through a processor.

[0033] Those skilled in the art should understand that the technical solutions provided by the embodiments of the present application may be in the form of methods, systems, or computer program products. Therefore, the present application may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present application may take the form of a computer program product implemented on one or more computer-readable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes. The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the process Figure 1 A process or multiple processes and / or boxes Figure 1 These computer program instructions can also be stored in a computer-readable memory that can guide a computer or other programmable data processing device to work in a specific way, so that the instructions stored in the computer-readable memory produce a product including an instruction device, which implements the functions specified in the process. Figure 1 A process or multiple processes and / or boxes Figure 1 These computer program instructions can also be loaded onto a computer or other programmable data processing device, so that a series of operation steps are executed on the computer or other programmable device to produce a computer-implemented process, so that the instructions executed on the computer or other programmable device provide for implementing the process in the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0034] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A flexible and configurable real-time monitoring method for rotational inertia of a power system, characterized in that: The steps include: S1, obtain basic data and environmental data from the specified data source; S2, read the inertia monitoring index information configured by the user, and complete the calculation of the inertia monitoring index according to the basic data and environmental data; S3, reading the visualization information configured by the user, and visually displaying the calculated inertia monitoring index.

2. The flexible and configurable real-time monitoring method for rotational inertia of a power system according to claim 1 is characterized in that: Before step S2, it also includes human-computer interaction with the user to save the inertia monitoring index information configured by the user: S101, respond to and verify the user's login operation request, if the verification is successful, jump to step S102; otherwise, end and exit; S102, determining whether the user has activated the configuration function of the inertia monitoring index information, if the user has activated the configuration function of the inertia monitoring index information, jumping to step S103; otherwise, ending and exiting; S103, obtaining the regional level selected by the user; S104, obtaining an inertia monitoring index item selected by a user; S105, determining whether the user executes to cancel the current configuration, if the user executes to cancel the current configuration, jumping to step S103; Otherwise, determine whether the user will make the configuration result effective. If so, save the configuration result of this configuration; S106, determining whether the user executes configuration result rollback, if the configuration result rollback is executed, the configuration result of the last configuration is effective, and the configuration result of the current configuration is cleared, and the process ends and exits.

3. The flexible and configurable real-time monitoring method for rotational inertia of a power system according to claim 1 is characterized in that: Before step S2, the process also includes human-computer interaction with the user to save the visual display information configured by the user: S201, respond to and verify the user's login operation request, if the verification is successful, jump to step S202; otherwise, end and exit; S202, determining whether the user has activated the configuration function of the visual display information, if the user has activated the configuration function of the visual display information, jumping to step S203; otherwise, ending and exiting; S203, obtaining the visual display component selected by the user and its component position; S204, determining whether the user executes to cancel the current configuration, if so, jumping to step S203; otherwise, determining whether the user makes the configuration result effective, if so, saving the configuration result of the current configuration; S205, determining whether the user executes a configuration result rollback. If the configuration result rollback is executed, the configuration result of the last configuration is effective, and the configuration result of the current configuration is cleared, and the process ends and exits.

4. The flexible and configurable real-time monitoring method for rotational inertia of a power system according to claim 1, characterized in that: When basic data and environmental data are obtained from the designated data source in step S1, the data source of the basic data is part or all of the SCADA system, WAMS system, and production management system, and the data source of the environmental data is part or all of the PMS system, GIS system, and meteorological system.

5. The flexible and configurable real-time monitoring method for rotational inertia of a power system according to claim 1, characterized in that: The user-configured inertia monitoring index information read in step S2 includes the system equivalent inertia time constant and the system level kinetic energy, and the function expression for calculating the system equivalent inertia time constant and the system level kinetic energy based on the basic data and the environmental data is: ， ， In the above formula, is the system equivalent inertia time constant; is the number of all operating synchronous units in the system; , , are the inertia time constant, rated capacity and start / stop status of the i-th synchronous unit in the system, and ∈{0,1}; The number of all new energy stations in operation in the system; , , are the virtual inertia time constant, rated capacity and operating status of the i-th new energy station in the system, and ∈{0, 1}; It is the system level kinetic energy; is the rotational kinetic energy of the i-th synchronous unit in the system; It is the sum of kinetic energy in other forms, and the sum of kinetic energy in other forms includes the sum of kinetic energy of asynchronous motors and phase regulators.

6. The flexible and configurable real-time monitoring method for rotational inertia of a power system according to claim 1, characterized in that: The user-configured inertia monitoring index information read in step S2 includes the maximum value of the virtual inertia time constant of the wind farm station, the maximum value of the virtual inertia time constant of the photovoltaic station, and the maximum value of the virtual inertia time constant of the energy storage station, and the function expression for calculating the maximum value of the virtual inertia time constant of the wind farm station, the maximum value of the virtual inertia time constant of the photovoltaic station, and the maximum value of the virtual inertia time constant of the energy storage station according to the basic data and the environmental data is: ， ， ， In the above formula, is the maximum value of the virtual inertia time constant of the wind farm station; Provide energy storage for wind farms; is the total number of wind turbines in the wind farm; The first i Typhoon turbine rated power; is the maximum value of the virtual inertia time constant of the photovoltaic station; Provide energy storage for photovoltaic stations; is the total number of photovoltaic arrays in the photovoltaic station; It is the first photovoltaic station i PV array rated power; is the maximum value of the virtual inertia time constant of the energy storage station; Provide energy storage for energy storage stations; is the total number of energy storage units in the energy storage station; is the rated power of the i-th energy storage unit in the energy storage station.

7. The flexible and configurable real-time monitoring method for rotational inertia of a power system according to claim 3, characterized in that: The visualization display component includes some or all components for displaying the spatiotemporal distribution diagram of the inertia monitoring index, the horizontal trend diagram, the minimum demand value, the safety margin, the period of low system inertia in the current and future operating periods, and the potential inertia weak area.

8. A flexible and configurable real-time monitoring system for the moment of inertia of a power system, comprising a microprocessor and a memory connected to each other, characterized in that: The microprocessor is programmed or configured to execute the flexible and configurable real-time monitoring method for rotational inertia of a power system as described in any one of claims 1 to 7.

9. A computer-readable storage medium having a computer program or instruction stored therein, characterized in that: The computer program or instruction is programmed or configured to execute the flexible and configurable real-time monitoring method of rotational inertia of a power system as claimed in any one of claims 1 to 7 through a processor.

10. A computer program product comprising a computer program or instructions, characterized in that The computer program or instruction is programmed or configured to execute the flexible and configurable real-time monitoring method of rotational inertia of a power system as claimed in any one of claims 1 to 7 through a processor.

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