Primary frequency modulation action statistical system and method for grid-connected coal-fired power generation unit

Abstract

The invention relates to the technical field of data processing, in particular to a grid-connected coal-fired generator set primary frequency modulation action statistical system and method. Comprising a primary frequency modulation statistics lower computer used for collecting parameter information of a generator set based on a PMU system; the primary frequency modulation statistical switch is used for receiving the parameter information of the generator set and sending the parameter information of the generator set; the primary frequency modulation statistical communication management machine is used for performing data interaction processing, communication protocol analysis processing, wave recording processing and data storage processing on the parameter information; and the primary frequency modulation action statistics background machine is used for configuring the spinning reserve capacity of the current primary frequency modulation information according to the parameter information of the generator set. According to the invention, the acquisition precision of the primary frequency modulation related data of the grid-connected coal-fired generator set is improved, the calculation, statistics and analysis capabilities of data processing are improved, and the automation degree of the whole process is improved.

Description

Background Art

[0002] The frequency of the power grid is determined by the size of the power generation power and the power load. When the power generation power is equal to the power load, the power grid frequency is stable; when the power generation power is greater than the power load, the power grid frequency increases; when the power generation power is less than the power load, the power grid frequency decreases. Once the frequency of the power grid deviates from the rated value, the grid-connected unit increases or decreases the unit's active power through the primary frequency modulation circuit to limit the change of the power grid frequency and maintain the rated frequency of the power grid. According to the current requirements, it is necessary to assess the power contribution of the primary frequency modulation action of the power plant according to the capacity of the generator set, the speed inequality rate and the primary frequency modulation action frequency. However, in the prior art, the primary frequency modulation contribution of the unit is estimated by searching for relevant data in the historical database of the DCS system of the generator set. Since the historical data statistically collected by the DCS system are all basic data, they need to be manually searched and counted, and there are large errors in the data collection and transmission itself, and they do not have the reference for the analysis and optimization of the primary frequency modulation function of the unit. Therefore, how to provide a statistical system and method for the primary frequency modulation action of the grid-connected coal-fired generator set is a technical problem that technicians in this field urgently need to solve. Summary of the invention

[0003] The purpose of the present invention is to provide a statistical system and method for the primary frequency regulation action of a grid-connected coal-fired power generation unit. The present invention directly collects key data of the unit operation from a PMU system and automatically statistically processes the primary frequency regulation data, thereby effectively improving the accuracy of the collection of primary frequency regulation related data of the grid-connected coal-fired power generation unit, improving the calculation, statistics and analysis capabilities of data processing, and improving the degree of automation of the entire process.

[0004] In order to achieve the above object, the present invention provides the following technical solutions:

[0005] A primary frequency regulation action statistics system for a grid-connected coal-fired generator set, characterized by comprising:

[0006] A primary frequency modulation statistics slave computer, the primary frequency modulation statistics slave computer is used to collect parameter information of the generator set based on the PMU system, the parameter information includes the three-phase voltage, three-phase current and active power of the generator set;

[0007] A primary frequency modulation statistics switch, the primary frequency modulation statistics switch is used to receive parameter information of the generator set, and send parameter information of the generator set, the primary frequency modulation statistics switch is connected to the primary frequency modulation statistics slave computer;

[0008] A primary frequency modulation statistics communication manager, the primary frequency modulation statistics communication manager is used to perform data interaction processing, communication protocol analysis processing, wave recording processing and data storage processing on the parameter information, and the primary frequency modulation statistics communication manager is connected to the primary frequency modulation statistics switch;

[0009] A primary frequency modulation action statistics background machine, the primary frequency modulation action statistics background machine is used to configure the rotating standby capacity of the current primary frequency modulation information according to the parameter information of the generator set, and the primary frequency modulation action statistics background machine is connected to the primary frequency modulation statistics switch.

[0010] In some embodiments of the present application, the primary frequency modulation statistics slave computer is also used to collect the primary frequency modulation input signal and the primary frequency modulation action signal of the generator set based on the DCS system, and collect the timing signal for clock synchronization based on the GPS timing system;

[0011] The primary frequency regulation action statistics background machine is also used to establish a simulation model of the power grid according to the primary frequency regulation investment signal, the primary frequency regulation action signal, the timing signal and the parameter information of the generator set, and determine the operation mode and calculation conditions of the power grid, and configure the rotating standby capacity for the current primary frequency regulation information according to the operation mode and calculation conditions of the power grid.

[0012] In some embodiments of the present application, the primary frequency modulation action statistics background machine is further used to select one of several operation modes of the power grid, and determine the penetration rate according to the selected operation mode, and use the power shortage caused by the reference event as the initial value of the spinning reserve capacity, and use the reference event as a fault to perform transient simulation on the power grid, and obtain the transient minimum frequency of the power grid after the fault;

[0013] The primary frequency regulation action statistics background machine is also used to determine whether the lowest point of the transient frequency of the target power grid meets the target frequency requirements. When the requirements are met, one of the other operating modes of the power grid is selected. When the requirements are not met, the rotating standby configuration capacity is changed according to the value of the lowest point of the transient frequency of the power grid, and it is determined whether the rotating configuration capacity is greater than the rotating standby reservable capacity limit under the operating mode. When there is no limit exceeded, transient simulation is performed on the power grid, and it is continued to be determined whether the lowest point of the transient frequency of the power grid meets the target frequency requirements.

[0014] In some embodiments of the present application, a power grid operation mode database is preset in the primary frequency modulation action statistics background machine, and the power grid operation mode database is used to determine several operation modes of the power grid, and determine the reference events and target frequencies under each of the operation modes, and determine the permeability range under each of the operation modes.

[0015] In some embodiments of the present application, the primary frequency modulation statistics communication management machine is configured with 6 independent network ports and 8 serial ports, as well as a display, a mouse and a keyboard. The primary frequency modulation statistics communication management machine is used to realize human-computer interaction operations through the display, the mouse and the keyboard.

[0016] In some embodiments of the present application, the primary frequency modulation action statistics background machine is also used to display the current primary frequency modulation information, the parameter information, the primary frequency modulation signal, the primary frequency modulation action signal and the timing signal in real time.

[0017] In order to achieve the above object, the present invention also provides a method for counting the primary frequency regulation actions of a grid-connected coal-fired generator set, which is applied to a statistical system for counting the primary frequency regulation actions of a grid-connected coal-fired generator set, and comprises:

[0018] Collecting parameter information of the generator set based on the PMU system, wherein the parameter information includes the three-phase voltage, three-phase current and active power of the generator set;

[0019] Performing data interaction processing, communication protocol analysis processing, wave recording processing and data storage processing on the parameter information;

[0020] The spinning reserve capacity is configured for the current primary frequency modulation information according to the parameter information of the generator set.

[0021] In some embodiments of the present application, it also includes:

[0022] Collecting the primary frequency modulation input signal and the primary frequency modulation action signal of the generator set based on the DCS system, and collecting the timing signal for clock synchronization based on the GPS timing system;

[0023] A simulation model of a power grid is established based on the primary frequency modulation investment signal, the primary frequency modulation action signal, the timing signal and the parameter information of the generator set, and the operation mode and calculation conditions of the power grid are determined. The rotating reserve capacity is configured for the current primary frequency modulation information based on the operation mode and calculation conditions of the power grid.

[0024] In some embodiments of the present application, configuring the spinning reserve capacity for the current primary frequency modulation information according to the operation mode and calculation conditions of the power grid includes:

[0025] Selecting one of several operation modes of the power grid, and determining the penetration rate according to the selected operation mode, and taking the power shortage caused by the reference event as the initial value of the spinning reserve capacity, performing transient simulation on the power grid with the reference event as the fault, and obtaining the transient minimum frequency of the power grid after the fault;

[0026] Determine whether the lowest point of the transient frequency of the target power grid meets the requirements of the target frequency. When the requirements are met, select one of the other operating modes of the power grid. When the requirements are not met, change the spinning reserve configuration capacity according to the value of the lowest point of the transient frequency of the power grid, and determine whether the spinning configuration capacity is greater than the spinning reserve reservable capacity limit under the operating mode. When there is no limit exceeded, perform transient simulation on the power grid, and continue to determine whether the lowest point of the transient frequency of the power grid meets the requirements of the target frequency.

[0027] In some embodiments of the present application, determining the operation mode and calculation conditions of the power grid includes:

[0028] Several operation modes of the power grid are determined, and reference events and target frequencies under each of the operation modes are determined, as well as a permeability range under each of the operation modes.

[0029] The present invention provides a system and method for counting the primary frequency regulation actions of a grid-connected coal-fired generator set. Compared with the prior art, the present invention has the following beneficial effects:

[0030] The present invention completes the information collection of the voltage, current and active power of the generator set through the primary frequency modulation statistics lower computer, completes the signal interaction with the DCS at the same time, and completes the functions of data interaction, communication protocol analysis, wave recording and data storage through the primary frequency modulation statistics communication management machine, thereby improving the accuracy of the collection of primary frequency modulation related data of the grid-connected coal-fired generator set, improving the calculation, statistics and analysis capabilities of data processing, improving the degree of automation of the whole process, and realizing the efficient processing process of evaluating the primary frequency modulation performance of the unit, providing an effective basis for optimizing and improving the primary frequency modulation capability of the coal-fired generator set. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a functional block diagram of a primary frequency regulation action statistics system of a grid-connected coal-fired power generation unit in an embodiment of the present invention;

[0032] Figure 2 It is a flow chart of a statistical method for primary frequency regulation actions of a grid-connected coal-fired power generation unit in an embodiment of the present invention. DETAILED DESCRIPTION

[0033] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0034] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0035] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0036] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be a communication between the inner sides of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0037] Primary frequency regulation refers to the automatic control process in which the control system of the units in the power grid automatically controls the increase or decrease of the active power of the units, limits the change of the power grid frequency, and maintains a stable power grid frequency once the power grid frequency deviates from the rated value.

[0038] In the prior art, the contribution of the primary frequency regulation of the unit is estimated by searching for relevant data in the historical database of the DCS system of the generator set. Since the historical data statistically collected by the DCS system are all basic data, they need to be manually searched and counted, and there are large errors in the data collection and transmission itself, which does not provide a reference for the analysis and optimization of the primary frequency regulation function of the unit.

[0039] The present invention provides a statistical system and method for primary frequency modulation actions of grid-connected coal-fired power generation units, which has the function of recording waves of conventional primary frequency modulation events, records complete event data, calculates the primary frequency modulation action contribution power and the primary frequency modulation action qualification rate, improves the accuracy of collecting primary frequency modulation related data of grid-connected coal-fired power generation units, improves the calculation, statistics and analysis capabilities of data processing, and improves the degree of automation of the entire process.

[0040] See also Figure 1As shown, the disclosed embodiment of the present invention provides a primary frequency regulation action statistics system for a grid-connected coal-fired power generation unit, characterized in that it includes:

[0041] The primary frequency regulation statistics lower computer is used to collect parameter information of the generator set based on the PMU system. The parameter information includes the three-phase voltage, three-phase current and active power of the generator set;

[0042] A primary frequency modulation statistics switch, which is used to receive parameter information of the generator set and send the parameter information of the generator set, and the primary frequency modulation statistics switch is connected to a primary frequency modulation statistics lower computer;

[0043] A primary frequency modulation statistics communication management machine, which is used for data interaction processing, communication protocol analysis processing, wave recording processing and data storage processing of parameter information, and is connected to a primary frequency modulation statistics exchanger;

[0044] The primary frequency regulation action statistics background machine is used to configure the rotating standby capacity of the current primary frequency regulation information according to the parameter information of the generator set. The primary frequency regulation action statistics background machine is connected to the primary frequency regulation statistics switch.

[0045] In a specific embodiment of the present application, the primary frequency modulation statistics slave computer is also used to collect the primary frequency modulation input signal and the primary frequency modulation action signal of the generator set based on the DCS system, and the timing signal for clock synchronization based on the GPS timing system;

[0046] The primary frequency regulation action statistics background machine is also used to establish a simulation model of the power grid according to the primary frequency regulation input signal, the primary frequency regulation action signal, the timing signal and the parameter information of the generator set, and to determine the operation mode and calculation conditions of the power grid, and to configure the rotating reserve capacity for the current primary frequency regulation information according to the operation mode and calculation conditions of the power grid.

[0047] In a specific embodiment of the present application, a frequency modulation action statistics background machine is further used to select one of several operation modes of the power grid, and determine the penetration rate according to the selected operation mode, and use the power shortage caused by the reference event as the initial value of the spinning reserve capacity, and use the reference event as the fault to perform transient simulation on the power grid, and obtain the transient minimum frequency of the power grid after the fault;

[0048] The primary frequency regulation action statistics background machine is also used to determine whether the lowest point of the transient frequency of the target power grid meets the target frequency requirements. When the requirements are met, another operation mode of the power grid is selected. When the requirements are not met, the rotating reserve configuration capacity is changed according to the value of the lowest point of the transient frequency of the power grid, and it is determined whether the rotating configuration capacity is greater than the rotating reserve reservable capacity limit under the operation mode. When there is no limit exceeded, the power grid is transiently simulated, and it is continued to be determined whether the lowest point of the transient frequency of the power grid meets the target frequency requirements.

[0049] In a specific embodiment of the present application, a power grid operation mode database is preset in a frequency modulation action statistics background machine, and the power grid operation mode database is used to determine several operation modes of the power grid, and to determine the reference events and target frequencies under each operation mode, and to determine the penetration rate range under each operation mode.

[0050] In a specific embodiment of the present application, a frequency modulation statistical communication management machine is configured with 6 independent network ports and 8 serial ports, as well as a display, a mouse and a keyboard. The frequency modulation statistical communication management machine is used to realize human-computer interaction operations through the display, the mouse and the keyboard.

[0051] In a specific embodiment of the present application, the primary frequency modulation action statistics background machine is also used to display the current primary frequency modulation information, parameter information, primary frequency modulation signal, primary frequency modulation action signal and timing signal in real time.

[0052] Based on the same technical concept, see Figure 2 As shown, the present invention also provides a method for counting the primary frequency regulation actions of a grid-connected coal-fired generator set, which is applied to a statistical system for counting the primary frequency regulation actions of a grid-connected coal-fired generator set, and comprises:

[0053] The parameter information of the generator set is collected based on the PMU system, and the parameter information includes the three-phase voltage, three-phase current and active power of the generator set;

[0054] Perform data interaction processing, communication protocol analysis processing, wave recording processing and data storage processing on parameter information;

[0055] The rotating reserve capacity is configured for the current primary frequency regulation information according to the parameter information of the generator set.

[0056] In a specific embodiment of the present application, it also includes:

[0057] Collect the primary frequency modulation input signal and primary frequency modulation action signal of the generator set based on the DCS system, and collect the timing signal for clock synchronization based on the GPS timing system;

[0058] A simulation model of the power grid is established based on the primary frequency regulation signal, the primary frequency regulation action signal, the timing signal and the parameter information of the generator set, and the operation mode and calculation conditions of the power grid are determined. The rotating reserve capacity is configured for the current primary frequency regulation information based on the operation mode and calculation conditions of the power grid.

[0059] In a specific embodiment of the present application, the configuration of the spinning reserve capacity for the current primary frequency modulation information according to the operation mode and calculation conditions of the power grid includes:

[0060] Select one of several operation modes of the power grid, and determine the penetration rate according to the selected operation mode, and use the power shortage caused by the reference event as the initial value of the spinning reserve capacity, and use the reference event as the fault to perform transient simulation on the power grid to obtain the transient minimum frequency of the power grid after the fault;

[0061] Determine whether the lowest point of the transient frequency of the target power grid meets the target frequency requirements. If so, select another operation mode of the power grid. If not, change the spinning reserve configuration capacity according to the value of the lowest point of the transient frequency of the power grid, and determine whether the spinning configuration capacity is greater than the spinning reserve reservable capacity limit under the operation mode. If it does not exceed the limit, perform transient simulation on the power grid, and continue to determine whether the lowest point of the transient frequency of the power grid meets the target frequency requirements.

[0062] In a specific embodiment of the present application, determining the operation mode and calculation conditions of the power grid includes:

[0063] Determine several operation modes of the power grid, determine the reference events and target frequencies under each operation mode, and determine the penetration rate range under each operation mode.

[0064] In summary, the present invention completes the information collection of the voltage, current and active power of the generator set through the primary frequency modulation statistics lower computer, completes the signal interaction with the DCS at the same time, and completes the functions of data interaction, communication protocol analysis, wave recording and data storage through the primary frequency modulation statistics communication management machine, improves the accuracy of the collection of the primary frequency modulation related data of the grid-connected coal-fired generator set, improves the calculation, statistics and analysis capabilities of data processing, improves the automation degree of the whole process, and realizes the efficient processing process of evaluating the primary frequency modulation performance of the unit, which provides an effective basis for optimizing and improving the primary frequency modulation capability of the coal-fired generator set. The present invention has the advantages of accuracy, efficiency and reliability.

[0065] The above is only an example of implementation of the present invention, but it cannot be used to limit the scope of the present invention. Any structural changes made according to the present invention should be regarded as falling within the protection scope of the present invention and subject to restrictions as long as they do not lose the essence of the present invention.

[0066] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process and related instructions of the system described above can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here.

[0067] It should be noted that the system provided in the above embodiment is only illustrated by the division of the above functional modules. In practical applications, the above functions can be assigned to different functional modules as needed, that is, the modules or steps in the embodiments of the present invention can be decomposed or combined. For example, the modules in the above embodiments can be combined into one module, or further divided into multiple sub-modules to complete all or part of the functions described above. The names of the modules and steps involved in the embodiments of the present invention are only for distinguishing the modules or steps, and are not regarded as improper limitations of the present invention.

[0068] Those skilled in the art should be able to appreciate that the modules and method steps of each example described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, computer software, or a combination of the two, and the programs corresponding to the software modules and method steps can be placed in random access memory (RAM), memory, read-only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disks, removable disks, CD-ROMs, or any other form of storage medium known in the technical field. In order to clearly illustrate the interchangeability of electronic hardware and software, the composition and steps of each example have been generally described in the above description according to the function. Whether these functions are performed in electronic hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention.

[0069] The term "comprise" or any other similar term is intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus / device that includes a list of elements includes not only those elements but also other elements not expressly listed, or also includes elements inherent to such process, method, article, or apparatus / device.

[0070] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

[0071] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

Claims

1. A statistical system for primary frequency modulation actions of grid-connected coal-fired generator sets, characterized in that: include: A primary frequency modulation statistics slave computer, the primary frequency modulation statistics slave computer is used to collect parameter information of the generator set based on the PMU system, the parameter information includes the three-phase voltage, three-phase current and active power of the generator set; A primary frequency modulation statistics switch, the primary frequency modulation statistics switch is used to receive parameter information of the generator set, and send parameter information of the generator set, the primary frequency modulation statistics switch is connected to the primary frequency modulation statistics slave computer; A primary frequency modulation statistics communication manager, the primary frequency modulation statistics communication manager is used to perform data interaction processing, communication protocol analysis processing, wave recording processing and data storage processing on the parameter information, and the primary frequency modulation statistics communication manager is connected to the primary frequency modulation statistics switch; A primary frequency modulation action statistics background machine, the primary frequency modulation action statistics background machine is used to configure the rotating standby capacity of the current primary frequency modulation information according to the parameter information of the generator set, and the primary frequency modulation action statistics background machine is connected to the primary frequency modulation statistics switch.

2. A primary frequency modulation action statistics system for grid-connected coal-fired power generation units according to claim 1, characterized in that: The primary frequency modulation statistics slave computer is also used to collect the primary frequency modulation input signal and the primary frequency modulation action signal of the generator set based on the DCS system, and collect the timing signal for clock synchronization based on the GPS timing system; The primary frequency regulation action statistics background machine is also used to establish a simulation model of the power grid according to the primary frequency regulation investment signal, the primary frequency regulation action signal, the timing signal and the parameter information of the generator set, and determine the operation mode and calculation conditions of the power grid, and configure the rotating standby capacity for the current primary frequency regulation information according to the operation mode and calculation conditions of the power grid.

3. A primary frequency modulation action statistics system for grid-connected coal-fired power generation units according to claim 2, characterized in that: The primary frequency modulation action statistics background machine is also used to select one of several operation modes of the power grid, and determine the penetration rate according to the selected operation mode, and use the power shortage caused by the reference event as the initial value of the spinning reserve capacity, and use the reference event as a fault to perform transient simulation on the power grid, and obtain the transient lowest point frequency of the power grid after the fault; The primary frequency regulation action statistics background machine is also used to determine whether the lowest point of the transient frequency of the target power grid meets the target frequency requirements. When the requirements are met, one of the other operating modes of the power grid is selected. When the requirements are not met, the rotating standby configuration capacity is changed according to the value of the lowest point of the transient frequency of the power grid, and it is determined whether the rotating configuration capacity is greater than the rotating standby reservable capacity limit under the operating mode. When there is no limit exceeded, transient simulation is performed on the power grid, and it is continued to be determined whether the lowest point of the transient frequency of the power grid meets the target frequency requirements.

4. A primary frequency modulation action statistics system for grid-connected coal-fired power generation units according to claim 3, characterized in that: A power grid operation mode database is preset in the primary frequency modulation action statistics background machine, and the power grid operation mode database is used to determine several operation modes of the power grid, and determine the reference event and target frequency under each operation mode, and determine the penetration rate range under each operation mode.

5. The primary frequency modulation action statistics system of a grid-connected coal-fired power generation unit according to claim 1, characterized in that: The primary frequency modulation statistics communication management machine is configured with 6 independent network ports and 8 serial ports, as well as a display, a mouse and a keyboard. The primary frequency modulation statistics communication management machine is used to realize human-computer interaction operations through the display, the mouse and the keyboard.

6. A statistical system for primary frequency modulation actions of grid-connected coal-fired power generation units according to claim 1, characterized in that: The primary frequency modulation action statistics background machine is also used to display the current primary frequency modulation information, the parameter information, the primary frequency modulation signal, the primary frequency modulation action signal and the timing signal in real time.

7. A method for counting the primary frequency modulation actions of a grid-connected coal-fired power generation unit, applied to a statistical system for counting the primary frequency modulation actions of a grid-connected coal-fired power generation unit as claimed in any one of claims 1 to 6, characterized in that: include: Collecting parameter information of the generator set based on the PMU system, wherein the parameter information includes the three-phase voltage, three-phase current and active power of the generator set; Performing data interaction processing, communication protocol analysis processing, wave recording processing and data storage processing on the parameter information; The spinning reserve capacity is configured for the current primary frequency modulation information according to the parameter information of the generator set.

8. A statistical method for primary frequency modulation actions of a grid-connected coal-fired power generation unit according to claim 7, characterized in that: Also includes: Collecting the primary frequency modulation input signal and the primary frequency modulation action signal of the generator set based on the DCS system, and collecting the timing signal for clock synchronization based on the GPS timing system; A simulation model of a power grid is established based on the primary frequency modulation investment signal, the primary frequency modulation action signal, the timing signal and the parameter information of the generator set, and the operation mode and calculation conditions of the power grid are determined. The rotating reserve capacity is configured for the current primary frequency modulation information based on the operation mode and calculation conditions of the power grid.

9. A statistical method for primary frequency modulation actions of a grid-connected coal-fired power generation unit according to claim 8, characterized in that: The configuration of the spinning reserve capacity for the current primary frequency regulation information is performed according to the operation mode and calculation conditions of the power grid, including: Selecting one of several operation modes of the power grid, and determining the penetration rate according to the selected operation mode, and taking the power shortage caused by the reference event as the initial value of the spinning reserve capacity, performing transient simulation on the power grid with the reference event as the fault, and obtaining the transient minimum frequency of the power grid after the fault; Determine whether the lowest point of the transient frequency of the target power grid meets the requirements of the target frequency. When the requirements are met, select one of the other operating modes of the power grid. When the requirements are not met, change the spinning reserve configuration capacity according to the value of the lowest point of the transient frequency of the power grid, and determine whether the spinning configuration capacity is greater than the spinning reserve reservable capacity limit under the operating mode. When there is no limit exceeded, perform transient simulation on the power grid, and continue to determine whether the lowest point of the transient frequency of the power grid meets the requirements of the target frequency.

10. A statistical method for primary frequency modulation actions of a grid-connected coal-fired power generation unit according to claim 9, characterized in that: Determine the operation mode and calculation conditions of the power grid, including: Several operation modes of the power grid are determined, and reference events and target frequencies under each of the operation modes are determined, as well as a permeability range under each of the operation modes.

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