Speed regulator opening / power response abnormity judgment method and device suitable for multiple operation modes, storage medium and electronic equipment

Abstract

The embodiment of the invention provides a speed regulator opening / power response abnormity judgment method and device suitable for multiple operation modes, a storage medium and electronic equipment, and relates to the field of water turbine speed regulator control. The method comprises the following steps: judging a starting criterion condition: judging the starting criterion condition based on an active power given value and an active power actual value of a speed regulator, and judging the starting criterion condition based on a guide vane opening degree adjusting command; under the condition that the starting criterion condition is met, carrying out the following fault judgment: judging whether the running state of the unit meets a fault judgment requirement or not; and under the condition that the fault judgment requirement is met, abnormity judgment is carried out based on the speed regulator active power variation and the guide vane opening variation. According to the technical scheme, the problem that active adjustment of the speed regulator is out of control under the working condition that the active power measured value or the guide vane opening measured value is abnormal can be solved, and an opening / power response abnormity alarm coping mechanism of the water turbine speed regulator is perfected.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water turbine governor control, in particular to a governor opening / power response abnormality judgment method and device suitable for multiple operation modes, a storage medium and an electronic device. BACKGROUND

[0002] As the central equipment of the water turbine control system of a hydropower plant, the water turbine governor plays a key role in frequency regulation of the hydro-generator unit, rapid synchronization of the unit to the grid and dynamic adjustment of the load, and its operation stability is directly related to the safe and efficient production of the power plant. However, with the continuous increase of the single-machine capacity of the hydro-generator unit, once the load regulation of the unit is out of control and a large power fluctuation occurs, it will pose a great threat to the safe and stable operation of the regional power transmission grid, possibly inducing system low-frequency oscillation and even leading to grid splitting accidents.

[0003] Currently, the water turbine governor has common fault judgment logic and can identify common faults such as analog channel disconnection / limit, jump, channel failure, etc. In the face of hidden faults such as abnormal function of the power transmitter, distortion of the power signal, disconnection of the connecting rod of the guide vane displacement sensor or blockage of the measurement signal, etc., the existing judgment mechanism has a recognition blind area and cannot trigger early warning in time, which brings great safety hazards to the operation of the unit and the grid. SUMMARY

[0004] Embodiments of the present application provide a governor opening / power response abnormality judgment method and device suitable for multiple operation modes, a storage medium and an electronic device to solve the problem of active regulation out of control of the governor under abnormal working conditions of active power measurement or guide vane opening measurement, perfect the alarm response mechanism for abnormal opening / power response of the water turbine governor, realize fast response to abnormal active regulation and stable control of the load, and provide technical support for safe and reliable operation of large hydro-generator units.

[0005] Other characteristics and advantages of the present application will become apparent from the following detailed description, or will be learned by practice of the present application.

[0006] According to a first aspect of the embodiments of the present application, a governor opening / power response abnormality judgment method suitable for multiple operation modes is provided, comprising: starting criterion condition judgment: starting criterion condition judgment based on the active power given value and the active power actual value of the governor, and starting criterion condition judgment based on the guide vane opening adjustment command; in the case of judging that the starting criterion condition is met, the following fault judgment is performed: judging whether the operation state of the unit meets the fault judgment requirement; In the case of meeting the fault judgment requirement, the abnormality is judged based on the active power change amount of the governor and the guide vane opening change amount.

[0007] In some embodiments of the present application, based on the foregoing scheme, the start criterion condition judgment is performed based on the active power given value and the active power actual value of the governor, including: judging whether the governor is running in the power mode, if yes, judging whether the difference between the active power given value and the active power actual value of the governor is greater than the start criterion threshold, if yes, judging that the start criterion condition is met, and recording the current guide vane opening value and the active power.

[0008] In some embodiments of the present application, based on the foregoing scheme, the start criterion condition judgment is performed based on the guide vane opening adjustment command, including: judging whether the governor is running in the opening mode, if yes, judging whether there is a guide vane opening adjustment command, if yes, judging that the start criterion condition is met, and recording the current guide vane opening value and the active power.

[0009] In some embodiments of the present application, based on the foregoing scheme, the judgment of whether the operating state of the unit meets the fault judgment requirement includes: When the unit is in the grid-connected state, the governor is in the "remote" & "automatic" control mode, the governor guide vane side is fault-free and the power channel is fault-free, it is judged that the operating state of the unit meets the fault judgment requirement.

[0010] In some embodiments of the present application, based on the foregoing scheme, the abnormality is judged based on the active power change amount of the governor and the guide vane opening change amount, including: If the difference △P between the current active sampling value and P pre is less than the first active power setting threshold △P 1set , and the difference △Y between the current opening sampling value and Y pre is greater than the first guide vane opening setting threshold △Y 1set , the abnormality is judged; or, if the difference between the current active sampling value and P pre is greater than the second active power setting threshold △P 2set , and the difference between the current opening sampling value and Y pre is less than the second guide vane opening setting threshold △Y 2set , the abnormality is judged.

[0011] Wherein, P pre is the active power sampling value recorded when the start criterion is met, and Y pre is the guide vane opening sampling value when the start criterion is met.

[0012] According to a second aspect of the embodiments of the present application, a governor opening / power response abnormality judgment device suitable for multiple operation modes is provided, comprising: a first judgment unit configured to judge a start criterion condition based on an active power given value and an active power actual value of the governor, and judge the start criterion condition based on a guide vane opening adjustment command; a second judgment unit configured to, in a case where it is judged that the start criterion condition is met, judge a fault as follows: judge whether an operation state of the unit meets a fault judgment requirement; in a case where the fault judgment requirement is met, judge an abnormality based on an active power variation of the governor and a guide vane opening variation.

[0013] According to a third aspect of the embodiments of the present application, a computer readable storage medium is provided, the storage medium stores computer instructions, and the computer instructions, when executed on a computer, cause the computer to execute the method according to the first aspect.

[0014] According to a fourth aspect of the embodiments of the present application, an electronic device is provided, comprising a memory and a processor. The memory is configured to store computer instructions. The processor is configured to invoke the computer instructions stored in the memory, so that the electronic device executes the method according to the first aspect.

[0015] The technical solution of the present application has the following beneficial effects: The method can be applied to both the power mode and the opening mode of the governor, and the reliability of the governor in all operating conditions is improved.

[0016] The method can solve the problem of active regulation out of control of the governor in abnormal operating conditions of the active power measurement value or the guide vane opening measurement value, perfect the abnormal alarm response mechanism of the opening / power response of the governor of the water turbine, and achieve the purpose of stabilizing the operation of the unit through switching of the operation mode.

[0017] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0018] The accompanying drawings, which are incorporated into and form part of the specification, illustrate embodiments consistent with the present application and, together with the specification, serve to explain the principles of the present application. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor. In the drawings: Figure 1Fig. 1 shows a flowchart of a method for judging governor opening / power response abnormality suitable for multiple operating modes according to an embodiment of the present application; Figure 2 Fig. 2 shows a judgment logic diagram for judging start criterion condition according to an embodiment of the present application; Figure 3 Fig. 3 shows a judgment logic diagram for judging fault according to an embodiment of the present application; Figure 4 Fig. 4 shows a block diagram of a device for judging governor opening / power response abnormality suitable for multiple operating modes according to an embodiment of the present application; Figure 5 Fig. 5 shows a block diagram of an electronic device according to an embodiment of the present application; Figure 6 Fig. 6 shows a structure diagram of a computer system suitable for implementing the electronic device according to an embodiment of the present application. DETAILED DESCRIPTION

[0019] Example implementations will now be described more fully with reference to the accompanying drawings. Example implementations may, however, be implemented in many different forms and should not be construed as limited to the examples set forth herein; rather, these example implementations are provided so that this disclosure will be thorough and complete, and will fully convey the scope of example implementations to those skilled in the art.

[0020] Moreover, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the application. One skilled in the relevant art will recognize, however, that the

[0021] The block diagrams in the drawings show only the functional entities and do not necessarily imply a physical structure for the implementation. That is, the functional entities can be implemented in software, or in one or more hardware modules or integrated circuits, or in different networks and / or processor devices and / or microcontroller devices.

[0022] The flowcharts shown in the drawings are only exemplary illustrations and do not necessarily include all contents and operations / steps, nor are they necessarily executed in the order described. For example, some operations / steps can be further divided, and some operations / steps can be combined or partially combined, so that the actual execution order can be changed according to the actual situation.

[0023] It is to be noted that the terms "first", "second", and the like in the description and in the claims of the present application and above-described drawings are used only for distinguishing between similar objects talking about the application and do not necessarily have to appear in the applications in a specific order or sequentially. It is to be understood that the objects so designated can be interchangeable under appropriate circumstances so that the embodiments of the application described herein can be practiced in other than the recited order of events.

[0024] In order to make the objects, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0025] Some embodiments of the present application will be described in detail below with reference to the drawings. The embodiments described below and the features in the embodiments can be combined with each other without conflict.

[0026] Referring to Figure 1 , a flowchart of a governor opening / power response abnormality judgment method suitable for multiple operating modes is shown according to an embodiment of the present application.

[0027] As shown in Figure 1 , a governor opening / power response abnormality judgment method suitable for multiple operating modes is shown, which specifically includes steps S100 to S200.

[0028] Referring to Figure 1 , in step S100, a start criterion condition is judged. The start criterion condition is judged based on the active power given value and the active power actual value of the governor, and the start criterion condition is judged based on the guide vane opening adjustment command.

[0029] Exemplarily, referring to Figure 2 , a judgment logic diagram of the start criterion condition judgment is shown.

[0030] As shown in Figure 2 , in some feasible embodiments, based on the foregoing scheme, the start criterion condition judgment based on the active power given value and the active power actual value of the governor includes: judging whether the governor is operating in a power mode, if so, judging whether the difference between the active power given value P setpoint and the active power actual value P of the governor is greater than a start criterion threshold value ΔP set , if so, judging that the start criterion condition is met, and recording the current guide vane opening value Y preand active power P pre .

[0031] It should be noted that the starting criterion threshold can be set to 0.5% ~ 2% PN according to actual needs.

[0032] It should be noted that if it is judged that the starting criterion condition is not met through this step, the current process is exited and the judgment is recycled.

[0033] As shown in Figure 2 , in some feasible embodiments, based on the foregoing scheme, the starting criterion condition judgment based on the guide vane opening adjustment command includes: judging whether the speed governor is running in an opening mode, if so, judging whether there is a guide vane opening adjustment command, if so, judging that the starting criterion condition is met, and recording the current guide vane opening value Y pre and active power P pre , and the TP pulse timing output is 5s effective.

[0034] It should be noted that the guide vane opening adjustment command can be a guide vane opening increase command or a guide vane opening decrease command.

[0035] It should be noted that if it is judged that the starting criterion condition is not met through this step, the current process is exited and the judgment is recycled.

[0036] Continuing to refer to Figure 1 , in the case where it is judged that the starting criterion condition is met, the following fault judgment is performed: judging whether the operating state of the unit meets the fault judgment requirement; in the case where the fault judgment requirement is met, performing abnormality judgment based on the active power change amount of the speed governor and the guide vane opening change amount.

[0037] For example, referring to Figure 3 , a judgment logic diagram for fault judgment is shown.

[0038] As shown in Figure 3 , in some feasible embodiments, based on the foregoing scheme, the judgment of whether the operating state of the unit meets the fault judgment requirement includes: when the unit is in a grid-connected state, the speed governor is in a "remote" & "automatic" control mode, the speed governor guide vane side is fault-free and the power channel is fault-free, judging that the operating state of the unit meets the fault judgment requirement.

[0039] In some feasible embodiments, based on the foregoing scheme, the abnormality judgment based on the active power change amount of the speed governor and the guide vane opening change amount includes: if the current active sampling value and P preThe difference ΔP is less than the first active power set threshold ΔP 1set And the current opening sample value is related to Y pre The difference ΔY is greater than the set threshold ΔY for the opening of the first guide vane. 1set If it is abnormal, then an anomaly is determined; or, if the current active power sample value is different from P... pre The difference is greater than the second active power setting threshold △P 2set And the current opening sample value is related to Y pre The difference is less than the second guide vane opening setting threshold △Y 2set If so, then it is judged as abnormal.

[0040] Among them, P pre This refers to the active power when the start-up criterion is met, Y pre This refers to the sampled value of the guide vane opening when the start-up criterion is met.

[0041] For example, in practical applications, to detect abnormal situations where the guide vane opening adjustment changes but the active power remains unchanged (power transmitter malfunction, power signal jamming), threshold judgments are performed on the change in active power ΔP and the change in guide vane opening ΔY of the speed governor for N consecutive program execution cycles. If the current active power sample value is different from P... pre The difference is less than the threshold △P 1set (1%~2% PN, can be adjusted according to actual needs), and the current opening sampling value is consistent with Y. pre The difference is greater than the threshold △Y 1set (1%~3%, can be adjusted according to actual needs) After a 2-second delay filter anti-shake, the governor opening / power response abnormality fault is reported, the monitoring system switches to "active open loop", the governor runs in "opening mode" to maintain the current guide vane opening.

[0042] For example, in practical applications, to detect abnormal situations where the active power changes but the guide vane opening remains unchanged (guide vane displacement sensor linkage disengagement or guide vane signal jamming), threshold judgments are performed on the change in active power ΔP and the change in guide vane opening ΔY of the speed governor for N consecutive program execution cycles. If the current active power sample value is different from P... pre The difference is greater than the threshold △P2set (5%~10% PN, which can be configured according to the actual needs of the unit), and the current opening sampling value is greater than Y. pre If the difference is less than the threshold △Y2set (0.5%~1%, which can be configured according to the actual needs of the unit), after a 2-second delay filter anti-jitter, an abnormal fault in the governor opening / power response will be reported. The monitoring system will switch to "active open loop", and the governor will run in "opening mode" to maintain the current guide vane opening.

[0043] The process of threshold judgment for the change in active power of the speed governor ΔP and the change in guide vane opening ΔY is as follows: if the current active power sample value is equal to P... preThe difference is less than threshold value ΔP 1set (1%~2% PN, can be adjusted according to actual demand), and the current opening sampling value and Y pre The difference is greater than threshold value ΔY 1set (1%~3%, can be adjusted according to actual demand), and after 2s of delay filtering anti-shake, the speed regulator opening / power response abnormality fault is reported.

[0044] The following describes a device embodiment of the present application, which can be used to execute one of the above-mentioned embodiments of the method for judging speed regulator opening / power response abnormality applicable to multiple operating modes. For details not disclosed in the device embodiment of the present application, please refer to the above-mentioned embodiments of the method of the present application.

[0045] Referring to Figure 4 Fig. 1, a device for judging speed regulator opening / power response abnormality applicable to multiple operating modes according to one embodiment of the present application comprises: A first judging unit 401 is configured to judge start criterion conditions based on active power given value and active power actual value of the speed regulator, and judge start criterion conditions based on guide vane opening adjustment command; A second judging unit 402 is configured to, in the case of judging that the start criterion conditions are met, judge the following faults: Judge whether the operating state of the unit meets the fault judgment requirement; In the case of meeting the fault judgment requirement, judge abnormality based on speed regulator active power change and guide vane opening change.

[0046] As Figure 5 shown in Fig. 2, the present application further provides an electronic device 500, which comprises a memory 510, a processor 520, and a computer program 511 stored in the memory 510 and executable on the processor, and the processor 520 implements the steps of the above-mentioned method for judging speed regulator opening / power response abnormality applicable to multiple operating modes when executing the computer program 511.

[0047] Since the electronic device introduced in the present embodiment is the device used to implement the device for judging speed regulator opening / power response abnormality applicable to multiple operating modes in the present application, the specific implementation of the electronic device of the present embodiment and its various forms can be understood by those skilled in the art based on the method introduced in the present embodiment, so the implementation of the electronic device in the method of the present application will not be described in detail here, as long as the device used to implement the method of the present application by those skilled in the art belongs to the scope of the present application.

[0048] In a practical implementation, the computer program 511, when executed by the processor, can implement any of the embodiments of the first aspect.

[0049] Figure 6 A structural diagram of a computer system of an electronic device suitable for implementing the embodiments of the present application is shown.

[0050] It should be noted that, Figure 6 The computer system 600 of the electronic device shown is only an example and should not impose any limitation on the functions and use range of the embodiments of the present application.

[0051] As Figure 6 shown, the computer system 600 includes a central processing unit (CPU) 601, which can perform various appropriate actions and processes according to programs stored in a read-only memory (ROM) 602 or loaded from a storage portion 608 into a random access memory (RAM) 603, such as performing the methods described in the above embodiments. In the RAM 603, various programs and data required for system operation are also stored. The CPU 601, the ROM 602, and the RAM 603 are connected to each other through a bus 604. An input / output (I / O) interface 605 is also connected to the bus 604.

[0052] The following components are connected to the I / O interface 605: an input portion 606 including a keyboard, a mouse, and the like; an output portion 607 including a cathode ray tube (CRT), a liquid crystal display (LCD), and the like, and a speaker, and the like; a storage portion 608 including a hard disk, and the like; and a communication portion 609 including a network interface card such as a LAN (Local Area Network) card, a modem, and the like. The communication portion 609 performs communication processing via a network such as the Internet. A drive 610 is also connected to the I / O interface 605 as necessary. A removable recording medium 611, such as a magnetic disk, an optical disc, a magneto-optical disc, a semiconductor memory, and the like, is attached to the drive 610 as necessary, so that a computer program read therefrom is installed in the storage portion 608 as necessary.

[0053] In particular, the processes described above with reference to the flow charts can be implemented as computer software programs in accordance with the embodiments of the present application. For example, embodiments of the present application include a computer program product comprising a computer program carried on a computer readable medium, the computer program comprising program code for performing the methods illustrated by the flow charts. In such embodiments, the computer program can be downloaded and installed from a network via the communication section 609, and / or installed from the removable media 611. When the computer program is executed by the central processing unit (CPU) 601, various functions defined in the system of the present application are performed.

[0054] It should be noted that the computer readable medium shown in the embodiments of the present application can be a computer readable signal medium or a computer readable storage medium or any combination of the two. The computer readable storage medium may, for example, but is not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or apparatus, or any combination of the above. More specific examples of the computer readable storage medium can include, but are not limited to, an electrical connection having one or more wires, a portable computer diskette, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM), a flash memory, an optical fiber, a portable compact disk read-only memory (Compact Disc Read-Only Memory, CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In the present application, the computer readable storage medium can be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, device or apparatus. In the present application, the computer readable signal medium can include a data signal carried in a baseband or as a part of a carrier wave, which carries computer readable program code. Such a propagated data signal can take many forms, including but not limited to an electromagnetic signal, an optical signal or any suitable combination of the above. The computer readable signal medium can also be any computer readable medium other than the computer readable storage medium that can send, propagate or transmit the program for use by or in connection with an instruction execution system, device or apparatus. The program code contained on the computer readable medium can be transmitted by any suitable medium, including but not limited to wireless, wired, or the like, or any suitable combination of the above.

[0055] The flow and block diagrams in the drawings represent possible architectural, functional, and operational architectures of systems, methods, and computer program products according to various embodiments of the present application. Each block in the flow and block diagrams can represent a module, a segment, or a portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that in some alternative implementations, the functions noted in the blocks can occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and / or flowchart illustrations, and combinations thereof, can be implemented by special purpose hardware-based systems that perform the specified functions or operations, or combinations of special purpose hardware and computer instructions.

[0056] The units described in the embodiments of the present application can be implemented by software, or by hardware, or by a combination of software and hardware. The units described may

[0057] As another aspect, the present application also provides a computer program product or computer program, which comprises computer instructions stored in a computer readable storage medium. A processor of a computer device reads the computer instructions from the computer readable storage medium, and the processor executes the computer instructions, so that the computer device executes the method for judging the governor opening / power response abnormality suitable for multiple operation modes described in the above embodiments.

[0058] As another aspect, the present application also provides a computer readable medium, which can be included in the electronic device described in the above embodiments, or can exist separately without being assembled into the electronic device. The computer readable medium carries one or more programs, which, when executed by the electronic device, cause the electronic device to implement the method for judging the governor opening / power response abnormality suitable for multiple operation modes described in the above embodiments.

[0059] It should be noted that although several modules or units of the device for action execution are mentioned in the above detailed description, the division is not mandatory. In fact, according to the embodiments of the present application, the features and functions of two or more modules or units described above can be embodied in one module or unit. Conversely, the features and functions of one module or unit described above can be further divided into a plurality of modules or units.

[0060] Those skilled in the art can easily understand that the example embodiments described herein can be implemented by software, or by software in combination with necessary hardware. Therefore, the technical solutions according to the embodiments of the present application can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, a USB flash disk, a mobile hard disk, or the like) or a network, and includes a number of instructions to enable a computing device (which can be a personal computer, a server, a touch terminal, or a network device, etc.) to perform the methods according to the embodiments of the present application.

[0061] Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the embodiments disclosed herein. For example, the present application is intended to cover any and all variant, uses, or adaptations of the application and includes what is presently described and contemplated to be within its scope. It is to be understood that the application is not limited to the exact details of construction, and the operation and the arrangement of the parts and steps set forth above and in the drawings, as such changes can be made in the exact construction within the scope of the application. The scope of the application is limited only by the claims that follow.

Claims

1. A method for judging abnormal governor opening / power response applicable to multiple operating modes, characterized in that, include: Triggering criterion condition judgment: Startup criteria are determined based on the active power setpoint and actual active power of the speed governor, and also based on the guide vane opening adjustment command. If the startup criterion is met, the following fault diagnosis is performed: Determine whether the unit's operating status meets the fault diagnosis requirements; Under the condition that the fault diagnosis requirements are met, the anomaly is judged based on the change in the active power of the governor and the change in the guide vane opening.

2. The method according to claim 1, characterized in that, The starting criterion condition judgment based on the active power setpoint and actual active power value of the speed governor includes: Determine whether the speed governor is operating in power mode. If so, determine whether the difference between the given active power value and the actual active power value of the speed governor is greater than the start-up criterion threshold. If it is greater, determine that the start-up criterion condition is met, and record the current guide vane opening value and active power.

3. The method according to claim 1, characterized in that, The start-up criterion condition judgment based on the guide vane opening adjustment command includes: Determine whether the speed governor is operating in the opening mode. If so, determine whether a guide vane opening adjustment command has been issued. If so, determine that the start-up criterion condition is met, and record the current guide vane opening value and active power.

4. The method according to claim 1, characterized in that, The determination of whether the unit's operating status meets the fault diagnosis requirements includes: When the unit is in grid-connected state, the speed governor is in "remote" & "automatic" control mode, and there is no fault on the guide vane side of the speed governor and no fault in the power channel, the unit's operating status is judged to meet the fault judgment requirements.

5. The method according to claim 1, characterized in that, The anomaly detection based on changes in the governor's active power and guide vane opening includes: If the current active power sample value is the same as P pre The difference ΔP is less than the first active power set threshold ΔP 1set And the current opening sample value is related to Y pre The difference ΔY is greater than the set threshold ΔY for the opening of the first guide vane. 1set If it is abnormal, then an anomaly is determined; or, if the current active power sample value is different from P... pre The difference is greater than the second active power setting threshold △P 2set And the current opening sample value is related to Y pre The difference is less than the second guide vane opening setting threshold △Y 2set If so, then it is judged as abnormal. Among them, P pre This refers to recording the active power sample value when the start-up criterion is met, Y pre This refers to the sampled value of the guide vane opening when the start-up criterion is met.

6. A speed governor opening / power response anomaly judgment device applicable to multiple operating modes, characterized in that, include: The first judgment unit is used to judge the start-up criteria based on the active power setpoint and the actual active power of the speed governor, and to judge the start-up criteria based on the guide vane opening adjustment command. The second judgment unit is used to perform the following fault judgment when the start-up criterion is met: Determine whether the unit's operating status meets the fault diagnosis requirements; Under the condition that the fault diagnosis requirements are met, the anomaly is judged based on the change in the active power of the governor and the change in the guide vane opening.

7. A computer-readable storage medium, characterized in that, The storage medium stores computer instructions that, when executed on a computer, cause the computer to perform the method as described in any one of claims 1-5.

8. An electronic device, characterized in that, include: Memory and processor; The memory is used to store computer instructions; The processor is configured to invoke computer instructions stored in the memory, causing the electronic device to perform the method as described in any one of claims 1-5.

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