Real-time monitoring system and method for primary frequency modulation performance index of thermal power generating unit

Abstract

The invention relates to a thermal power generating unit primary frequency modulation performance index real-time monitoring system and method, and the system comprises a data collection module which is used for collecting the real-time operation data of a thermal power generating unit; the index monitoring module is used for calculating the actual action integral electric quantity and the theoretical action integral electric quantity of the primary frequency modulation based on the real-time operation data when the thermal generator set executes the primary frequency modulation every time so as to obtain the performance index of the primary frequency modulation; and the dynamic regulation and control module is used for dynamically adjusting the action amount of primary frequency modulation until the performance index calculated in real time meets a preset assessment requirement under the condition that the performance index is unqualified. According to the method and the device, the performance index of the primary frequency modulation can be monitored in real time in the DCS of the thermal power generating unit, so that the performance index meets the preset assessment requirement, the economic loss caused by assessment of a power generation enterprise is effectively reduced, and the problem of how to monitor the performance index of the primary frequency modulation of the thermal power generating unit in real time is solved.

Description

Technical Field

[0001] The present application relates to the field of thermal power generation technology, and in particular to a real-time monitoring system and method for primary frequency regulation performance indicators of a thermal power unit. Background Art

[0002] With the large-scale grid connection of new energy and the increasingly complex grid structure, the power system's dependence on the primary frequency regulation capability of thermal power units has increased significantly. Primary frequency regulation is the first line of defense for maintaining grid frequency stability, and the assessment of its performance indicators is directly related to the economic benefits of power generation companies.

[0003] Currently, the industry generally uses DCS systems to control the primary frequency regulation of thermal power units. However, there is a serious lag in the monitoring of primary frequency regulation. It relies on trend analysis through regular analysis of primary frequency regulation assessment data released by the power grid. This processing method has high requirements for the timeliness of the primary frequency regulation assessment data released by the power grid. The assessment data released by the power grid generally lags significantly behind the real-time data, making it difficult to calculate key performance indicators in real time. The evaluation results can only be obtained after the end of the assessment cycle, and then further optimization and observation are required. It is difficult to get immediate real-time feedback on the optimization effect, resulting in thermal power units frequently incurring huge fines due to the assessment of primary frequency regulation performance indicators.

[0004] Currently, no effective solution has been proposed for how to conduct real-time monitoring of primary frequency regulation performance indicators of thermal power units in related technologies. Summary of the Invention

[0005] The embodiments of the present application provide a real-time monitoring system and method for the primary frequency regulation performance indicators of a thermal power unit, so as to at least solve the problem in the related art of how to perform real-time monitoring of the primary frequency regulation performance indicators of a thermal power unit.

[0006] In a first aspect, an embodiment of the present application provides a real-time monitoring system for primary frequency regulation performance indicators of a thermal power generation unit, wherein the real-time monitoring system is integrated into a distributed control system (DCS) of the thermal power generation unit, and comprises a data acquisition module, an indicator monitoring module, and a dynamic control module; The data acquisition module is used to collect real-time operating data of the thermal power generating set; The indicator monitoring module is used to calculate the actual action integrated power and theoretical action integrated power of the primary frequency regulation based on the real-time operation data each time the thermal power generating set performs the primary frequency regulation, thereby obtaining the performance indicator of the primary frequency regulation; The dynamic control module is used to dynamically adjust the action amount of the primary frequency modulation until the performance indicator calculated in real time meets the preset assessment requirement when the performance indicator fails to meet the requirements.

[0007] In some embodiments, the data acquisition module is used to collect a first actual load of the thermal power generating set before performing various frequency modulation actions, and a second actual load of the thermal power generating set after performing various frequency modulation actions.

[0008] In some embodiments, the indicator monitoring module is configured to, within a calculation cycle in which the thermal power generating set performs a frequency modulation each time, for each action of the frequency modulation within the calculation cycle, subtract the first actual load before the action from the second actual load after the action to obtain a corresponding actual action load; The actual action loads of various actions of the primary frequency modulation within the calculation period are accumulated to obtain the actual action integrated power of the primary frequency modulation.

[0009] In some embodiments, the data acquisition module is used to collect the turbine speed of the thermal power generating set before performing various actions of the primary frequency modulation, and to obtain the theoretical action speed of each action of the primary frequency modulation.

[0010] In some embodiments, the indicator monitoring module is configured to calculate, within a calculation cycle of each primary frequency modulation performed by the thermal power generating set, for each action of the primary frequency modulation within the calculation cycle, the corresponding theoretical action load according to the turbine speed before the action and the theoretical action speed of the action through a primary frequency modulation theoretical function; The theoretical action loads of various actions of the primary frequency modulation within the calculation period are accumulated to obtain the theoretical action integrated electrical quantity of the primary frequency modulation.

[0011] In some embodiments, the indicator monitoring module is used to calculate the qualified rate of the action integral power of the primary frequency modulation in real time based on the actual action integral power and the theoretical action integral power of the primary frequency modulation; Compare the qualified rate of the action integral power with the qualified rate requirement of the power generation enterprise in the preset assessment requirements to determine whether the performance indicators of the primary frequency regulation are qualified.

[0012] In some embodiments, the dynamic control module is used to dynamically adjust the action amount of the correction parameter of the primary frequency regulation when the performance indicator is unqualified, so that the real-time calculated action integral power qualification rate reaches the power generation enterprise qualification rate requirement in the preset assessment requirements, wherein the correction parameter is the turbine valve opening.

[0013] In some embodiments, the system includes a safety monitoring module; The data acquisition module is used to collect parameters related to the power forced oscillation of the thermal power generating unit, wherein the parameters related to the power forced oscillation include the actual load of the unit, the speed of the steam turbine, the feedback of the steam turbine valve and the main valve instruction of the steam turbine; The safety monitoring module is used to monitor whether power forced oscillation occurs in the thermal power generating set according to any one of the power forced oscillation parameters.

[0014] In some embodiments, the system includes a fault diagnosis module, which, upon detecting that a forced power oscillation occurs in the thermal power generating set: The fault diagnosis module is used to diagnose the cause of the power forced oscillation. If it is confirmed that the cause of the power forced oscillation is that the thermal power generator set performs a primary frequency modulation, the primary frequency modulation is cut off, wherein the cause includes the primary frequency modulation, the unit power control and the poor linear characteristics of the turbine valve.

[0015] In a second aspect, an embodiment of the present application provides a method for real-time monitoring of primary frequency regulation performance indicators of a thermal power unit. The method is executed based on the real-time monitoring system described in the first aspect above, and the method includes: Collecting real-time operating data of the thermal power generating unit; Each time the thermal power generating set performs a primary frequency modulation, the actual action integral power and the theoretical action integral power of the primary frequency modulation are calculated based on the real-time operation data, thereby obtaining a performance index of the primary frequency modulation; In the case where the performance index is unqualified, the action amount of the primary frequency modulation is dynamically adjusted until the performance index calculated in real time meets the preset assessment requirements.

[0016] Compared with related technologies, the embodiments of the present application provide a real-time monitoring system and method for the primary frequency regulation performance index of a thermal power generation unit, wherein the real-time monitoring system is integrated into the distributed control system (DCS) of the thermal power generation unit, and includes: a data acquisition module for collecting real-time operating data of the thermal power generation unit; an index monitoring module for calculating the actual action integral power and theoretical action integral power of the primary frequency regulation based on the real-time operating data each time the thermal power generation unit performs primary frequency regulation, thereby obtaining the performance index of the primary frequency regulation; and a dynamic control module for dynamically adjusting the action amount of the primary frequency regulation until the real-time calculated performance index meets the preset assessment requirements when the performance index fails to meet the requirements. This enables the real-time monitoring of the primary frequency regulation performance index in the DCS of the thermal power generation unit, so that its performance index meets the preset assessment requirements, effectively reduces the economic losses of the power generation enterprise caused by the assessment, and solves the problem of how to conduct real-time monitoring of the primary frequency regulation performance index of the thermal power generation unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings: Figure 1 This is a structural block diagram of a real-time monitoring system for primary frequency regulation performance indicators of a thermal power unit according to an embodiment of the present application; Figure 2 This is a flowchart of the steps of a method for real-time monitoring of primary frequency regulation performance indicators of a thermal power unit according to an embodiment of the present application; Figure 3 Schematic diagram of the internal structure of an electronic device according to an embodiment of the present application. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solutions and advantages of this application more clearly understood, the present application is described and illustrated below in conjunction with the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely used to explain this application and are not intended to limit this application. Based on the embodiments provided in this application, all other embodiments obtained by those of ordinary skill in the art without making any creative efforts are within the scope of protection of this application.

[0019] Obviously, the drawings described below are merely examples or embodiments of the present application. Those skilled in the art can, without inventive effort, apply the present application to other similar scenarios based on these drawings. Furthermore, it is also understood that, although the effort involved in such a development process may be complex and lengthy, for those skilled in the art related to the content disclosed in this application, changes in design, manufacturing, or production based on the technical content disclosed in this application are merely conventional technical means and should not be construed as an insufficiency of the content disclosed in this application.

[0020] References to "embodiments" in this application mean that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it refer to independent or alternative embodiments that are mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described in this application may be combined with other embodiments unless there is a conflict.

[0021] Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by persons of ordinary skill in the art to which this application belongs. The terms "a," "an," "an," "the," and similar expressions used herein do not denote quantitative limitations and may refer to either the singular or the plural. The terms "comprise," "include," "have," and any variations thereof, used herein, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or modules (units) is not limited to the listed steps or units but may also include steps or units not listed, or may include other steps or units inherent to the process, method, product, or apparatus. The terms "connected," "connected," "coupled," and similar expressions used herein are not limited to physical or mechanical connections but may include electrical connections, whether direct or indirect. As used herein, "plurality" means two or more. "And / or" describes an association between associated objects, indicating that three possible relationships exist. For example, "A and / or B" may mean: A exists alone; A and B exist simultaneously; or B exists alone. The character " / " generally indicates that the objects before and after are in an "or" relationship. The terms "first", "second", "third", etc. involved in this application are only used to distinguish similar objects and do not represent a specific order for the objects.

[0022] The embodiment of the present application provides a real-time monitoring system for the primary frequency regulation performance index of a thermal power generation unit. The real-time monitoring system is integrated into the distributed control system DCS of the thermal power generation unit. Figure 1 : is a structural block diagram of a real-time monitoring system for primary frequency regulation performance indicators of a thermal power unit according to an embodiment of the present application, such as Figure 1 As shown, the real-time monitoring system includes a data acquisition module, an indicator monitoring module and a dynamic control module; It's important to note that the Distributed Control System (DCS) of thermal power generators is the core system for power plant automation control. It covers boilers, steam turbines, generators, and other equipment. Through a hierarchical control structure and network communication technologies, it enables data collection, real-time monitoring, automatic control, fault diagnosis, and optimized management of thermal power plant production processes, improving the safety, economy, and efficiency of power plant operations.

[0023] Data acquisition module, used to collect real-time operating data of thermal power generating units; The indicator monitoring module is used to calculate the actual action integral power and theoretical action integral power of the frequency modulation based on real-time operation data each time the thermal power generating unit performs the frequency modulation, and then obtain the performance indicator of the frequency modulation; The dynamic control module is used to dynamically adjust the amount of frequency modulation action when the performance indicators are unqualified until the performance indicators calculated in real time meet the preset assessment requirements.

[0024] It should be further explained that the existing DCS system of a thermal power plant is difficult to have the ability to calculate the primary frequency regulation performance index in real time, as it lacks the corresponding system configuration, software control logic, etc. However, the real-time monitoring system provided in this embodiment is integrated into the DCS of the thermal power plant, enabling the DCS to have the ability to calculate the primary frequency regulation performance index in real time.

[0025] Through the data acquisition module, indicator monitoring module and dynamic control module in the embodiments of the present application, it is possible to monitor the performance indicators of primary frequency regulation in real time in the DCS of the thermal power unit, so that its performance indicators meet the preset assessment requirements, effectively reduce the economic losses of power generation enterprises caused by assessments, and solve the problem of how to conduct real-time monitoring of the primary frequency regulation performance indicators of the thermal power unit.

[0026] In some specific embodiments, the real-time operating data of the thermal power generator set collected by the data acquisition module is specifically: the first actual load of the thermal power generator set before performing various frequency modulation actions, and the second actual load of the thermal power generator set after performing various frequency modulation actions.

[0027] The indicator monitoring module is used to, within a calculation cycle when the thermal power generating set performs a frequency modulation each time, for each action of the frequency modulation within the calculation cycle, use the second actual load after the action to subtract the first actual load before the action to obtain the corresponding actual action load; and then accumulate the actual action loads of each action of the frequency modulation within the calculation cycle to obtain the actual action integrated power of the frequency modulation.

[0028] In some specific embodiments, the real-time operating data of the thermal power generator set collected by the data acquisition module is specifically: the turbine speed of the thermal power generator set before performing various frequency modulation actions, and the theoretical action speed of each frequency modulation action.

[0029] The indicator monitoring module is used to calculate, within the calculation cycle of each frequency modulation performed by the thermal power generating set, for each action of the frequency modulation within the calculation cycle, the corresponding theoretical action load through the frequency modulation theory function according to the turbine speed before the action and the theoretical action speed of the action; and then accumulate the theoretical action loads of each action within the calculation cycle of the frequency modulation to obtain the theoretical action integrated power of the frequency modulation.

[0030] In some specific embodiments, the indicator monitoring module is used to calculate in real time the qualified rate of the action integral electricity of the primary frequency regulation based on the actual action integral electricity and the theoretical action integral electricity; and then compare the qualified rate of the action integral electricity with the qualified rate requirements of the power generation enterprise in the preset assessment requirements to determine whether the performance indicators of the primary frequency regulation are qualified. The preset assessment requirements can be selected as the "Implementation Rules for the Management of Power Grid Connection and Operation in the Northwest Region" issued by the Northwest Energy Monitoring Market.

[0031] The dynamic control module is used to dynamically adjust the action amount of the correction parameter of the primary frequency regulation when performance indicators fail to meet the requirements. This is to ensure that the real-time calculated action integrated power qualification rate meets the power generation enterprise qualification rate requirements in the preset assessment requirements. The correction parameter is the steam turbine valve opening. Alternatively, this correction parameter can be a remote control master valve position command. Based on the current real-time change of the primary frequency regulation qualification rate, the steam turbine master valve command is increased, thereby improving the ratio of the actual accumulated integrated power to the theoretical integrated power, thereby improving the integrated power qualification rate.

[0032] In some preferred embodiments, the above embodiments realize real-time monitoring of the performance indicators of a single primary frequency regulation. In this preferred embodiment, an assessment and settlement cycle (such as monthly settlement, weekly settlement, etc.) can be set, and the periodic data can be updated according to the assessment and settlement cycle, which can reflect the overall primary frequency regulation performance indicators of the thermal power generating unit within a certain operating cycle.

[0033] In some specific embodiments, the real-time monitoring system further includes a safety monitoring module and a fault diagnosis module; The data acquisition module is used to collect parameters related to power forced oscillation of the thermal power generating unit, where the parameters related to power forced oscillation include the actual load of the unit, turbine speed, turbine valve feedback and turbine main valve instruction; the safety monitoring module is used to monitor whether power forced oscillation occurs in the thermal power generating unit based on any power forced oscillation parameter.

[0034] When forced power oscillation is detected in a thermal power generator: The fault diagnosis module is used to diagnose the cause of the power forced oscillation. If it is confirmed that the cause of the power forced oscillation is the primary frequency modulation of the thermal power generator set, the primary frequency modulation is cut off. The causes include the primary frequency modulation, the unit power control and the poor linear characteristics of the turbine valve.

[0035] It should be noted that the existing DCS system lacks a power forced oscillation suppression mechanism. When the unit performs a frequency modulation action, its power regulation will trigger multi-band coupled oscillations through the boiler-turbine-generator energy transfer chain. In particular, when the power instruction change point coincides with the inherent oscillation characteristics of the unit, it is easy to induce the power forced vibration phenomenon. Through the safety monitoring module and fault diagnosis module provided by the embodiment of the present application, it is possible to effectively establish a connection between the primary frequency modulation action and the same-frequency vibration monitoring, and realize accurate monitoring of the same-frequency oscillation risk caused by the primary frequency modulation. At the same time, it is possible to perform targeted online suppression and removal of the detected same-frequency oscillation, thereby avoiding losses caused by shutdown maintenance.

[0036] It should be further noted that the aforementioned modules can be either functional modules or program modules, and can be implemented via software or hardware. For modules implemented via hardware, the aforementioned modules can be located in the same processor; or the aforementioned modules can be located in different processors in any combination.

[0037] The embodiment of the present application provides a real-time monitoring method for the primary frequency regulation performance index of a thermal power unit. The execution of this method is based on the real-time monitoring system provided by the above embodiment. Figure 2 : is a flowchart of the steps of the real-time monitoring method of the primary frequency regulation performance index of the thermal power unit according to the embodiment of the present application, such as Figure 2 As shown, the method includes the following steps: Step S202, collecting real-time operating data of the thermal power generating set; Step S204, each time the thermal power generator performs a primary frequency modulation, the actual action integral power and the theoretical action integral power of the primary frequency modulation are calculated based on the real-time operation data, thereby obtaining a performance index of the primary frequency modulation; Step S206: If the performance index is unqualified, dynamically adjust the amount of frequency modulation until the performance index calculated in real time meets the preset assessment requirements.

[0038] Through the method steps in the embodiments of the present application, it is possible to monitor the performance indicators of primary frequency regulation in real time in the DCS of a thermal power unit, so that its performance indicators meet the preset assessment requirements, effectively reduce the economic losses of power generation enterprises caused by the assessment, and solve the problem of how to conduct real-time monitoring of the primary frequency regulation performance indicators of a thermal power unit.

[0039] It should be noted that the steps shown in the above process or the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0040] This embodiment provides an electronic device, including a memory and a processor, wherein the memory stores a computer program, and the processor is configured to run the computer program to perform the steps in any one of the above method embodiments.

[0041] Optionally, the electronic device may further include a transmission device and an input / output device, wherein the transmission device is connected to the processor, and the input / output device is connected to the processor.

[0042] Optionally, the electronic device may further include a processor, a memory, a network interface, a display screen, and an input device connected via a system bus. The processor of the electronic device is configured to provide computing and control capabilities. The memory of the electronic device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The network interface of the electronic device is configured to communicate with an external terminal via a network connection. When the computer program is executed by the processor, a method for real-time monitoring of primary frequency regulation performance indicators of a thermal power unit is implemented. The display screen of the electronic device may be a liquid crystal display or an electronic ink display screen, and the input device of the electronic device may be a touch layer covering the display screen, or a key, trackball, or touchpad provided on the housing of the electronic device, or an external keyboard, touchpad, or mouse.

[0043] It should be noted that the specific examples in this embodiment can refer to the examples described in the above embodiments and optional implementation modes, and this embodiment will not be repeated here.

[0044] In addition, in conjunction with the real-time monitoring method for the primary frequency regulation performance index of a thermal power unit in the above-mentioned embodiments, embodiments of the present application may provide a storage medium for implementation. The storage medium stores a computer program; when the computer program is executed by a processor, it implements any of the real-time monitoring methods for the primary frequency regulation performance index of a thermal power unit in the above-mentioned embodiments.

[0045] In one embodiment, Figure 3 is a schematic diagram of the internal structure of an electronic device according to an embodiment of the present application, such as Figure 3 As shown, an electronic device is provided, which can be a server, and its internal structure can be as shown in FIG. Figure 3As shown. This electronic device includes a processor, a network interface, internal memory, and non-volatile memory connected via an internal bus. The non-volatile memory stores an operating system, a computer program, and a database. The processor provides computing and control capabilities, the network interface communicates with external terminals via a network connection, the internal memory provides an environment for the operating system and computer program. When executed by the processor, the computer program implements a real-time monitoring method for primary frequency regulation performance indicators of a thermal power unit. The database stores data.

[0046] Those skilled in the art will understand that Figure 3 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the electronic device to which the solution of the present application is applied. The specific electronic device may include more or fewer components than shown in the figure, or combine certain components, or have a different component arrangement.

[0047] Those skilled in the art will understand that all or part of the processes in the above-mentioned embodiments can be implemented by instructing the relevant hardware through a computer program. The computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, storage, database or other media used in the embodiments provided in this application may include non-volatile and / or volatile memory. Non-volatile memory may include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. Volatile memory may include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in many forms such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), etc.

[0048] Those skilled in the art should understand that the various technical features of the above-described embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the various technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0049] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art could make various modifications and improvements without departing from the spirit of the present application, all of which fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A real-time monitoring system for primary frequency regulation performance indicators of thermal power units, characterized in that: The real-time monitoring system is integrated into the distributed control system DCS of the thermal power generating set, and the real-time monitoring system includes a data acquisition module, an indicator monitoring module and a dynamic control module; The data acquisition module is used to collect real-time operating data of the thermal power generating set; The indicator monitoring module is used to calculate the actual action integrated power and theoretical action integrated power of the primary frequency regulation based on the real-time operation data each time the thermal power generating set performs the primary frequency regulation, thereby obtaining the performance indicator of the primary frequency regulation; The dynamic control module is used to dynamically adjust the action amount of the primary frequency modulation until the performance indicator calculated in real time meets the preset assessment requirement when the performance indicator fails to meet the requirements.

2. The system according to claim 1, wherein: The data acquisition module is used to collect the first actual load of the thermal power generating set before performing various frequency modulation actions, and the second actual load of the thermal power generating set after performing various frequency modulation actions.

3. The system according to claim 2, characterized in that The indicator monitoring module is configured to, within a calculation cycle of each frequency regulation performed by the thermal power generating set, obtain a corresponding actual action load by subtracting a first actual load before the action from a second actual load after the action for each action within the calculation cycle; The actual action loads of various actions of the primary frequency modulation within the calculation period are accumulated to obtain the actual action integrated power of the primary frequency modulation.

4. The system according to claim 1, wherein: The data acquisition module is used to collect the turbine speed of the thermal power generating set before performing various actions of the primary frequency modulation, and to obtain the theoretical action speed of each action of the primary frequency modulation.

5. The system according to claim 4, characterized in that The indicator monitoring module is configured to calculate, within a calculation cycle of each primary frequency modulation performed by the thermal power generating set, for each action of the primary frequency modulation within the calculation cycle, the corresponding theoretical action load according to the turbine speed before the action and the theoretical action speed of the action using a primary frequency modulation theoretical function; The theoretical action loads of various actions of the primary frequency modulation within the calculation period are accumulated to obtain the theoretical action integrated electrical quantity of the primary frequency modulation.

6. The system according to claim 1, wherein: The indicator monitoring module is used to calculate the qualified rate of the action integral power of the primary frequency modulation in real time based on the actual action integral power and the theoretical action integral power of the primary frequency modulation; Compare the qualified rate of the action integral power with the qualified rate requirement of the power generation enterprise in the preset assessment requirements to determine whether the performance indicators of the primary frequency regulation are qualified.

7. The system according to claim 6, characterized in that The dynamic control module is used to dynamically adjust the action amount of the correction parameter of the primary frequency regulation when the performance indicator fails to meet the requirements, so that the real-time calculated action integral power qualification rate meets the power generation enterprise qualification rate requirement in the preset assessment requirements, wherein the correction parameter is the turbine valve opening.

8. The system according to claim 1, wherein: The system includes a safety monitoring module; The data acquisition module is used to collect parameters related to the power forced oscillation of the thermal power generating unit, wherein the parameters related to the power forced oscillation include the actual load of the unit, the speed of the steam turbine, the feedback of the steam turbine valve and the main valve instruction of the steam turbine; The safety monitoring module is used to monitor whether power forced oscillation occurs in the thermal power generating set according to any one of the power forced oscillation parameters.

9. The system according to claim 8, characterized in that The system includes a fault diagnosis module, which, when detecting that the thermal power generating set has a forced power oscillation: The fault diagnosis module is used to diagnose the cause of the power forced oscillation. If it is confirmed that the cause of the power forced oscillation is that the thermal power generator set performs a primary frequency modulation, the primary frequency modulation is cut off, wherein the cause includes the primary frequency modulation, the unit power control and the poor linear characteristics of the turbine valve.

10. A real-time monitoring method for primary frequency regulation performance indicators of thermal power units, characterized in that: The method is performed based on the real-time monitoring system according to any one of claims 1 to 9, and the method includes: Collecting real-time operating data of the thermal power generating unit; Each time the thermal power generating set performs a primary frequency modulation, the actual action integral power and the theoretical action integral power of the primary frequency modulation are calculated based on the real-time operation data, thereby obtaining a performance index of the primary frequency modulation; In the case where the performance index is unqualified, the action amount of the primary frequency modulation is dynamically adjusted until the performance index calculated in real time meets the preset assessment requirements.

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