Circuit breaker spring operating mechanism operation detection and adjustment device and method

Abstract

The invention discloses a circuit breaker spring operating mechanism operation detection and adjustment device and method. The method comprises the steps that firstly, contact displacement data and closing spring pressure data are acquired; judging whether the contact displacement is in a normal range or not and whether the closing spring pressure reaches the bearable maximum value or not; and finally, the action time of the contact is compensated according to the judgment result of the data judgment module. According to the technical scheme, multiple times of adjustment of the closing spring are avoided while the operating characteristic measurement stability of the circuit breaker is ensured, the working efficiency is improved, and the service life of the mechanism is prolonged.

Description

Technical Field

[0001] The invention belongs to the technical field of power equipment control, and in particular relates to an operation detection and adjustment device and method for a circuit breaker spring operating mechanism. Background Art

[0002] Circuit breakers are used to break and protect high-voltage circuits. The spring operating mechanism is a mechanical operating mechanism that uses a spring as an energy storage element, together with a cam and a connecting rod. It is widely used because of its advantages of requiring a small power capacity, being able to perform a closing operation after a power failure, and being able to operate under both AC and DC power supplies. Phase selection is a technology that controls the opening and closing of circuit breaker contacts at the best time through a special device, and phase selection technology relies on high-precision opening and closing time. Therefore, it is of great significance to select a suitable method to detect and analyze the operating status of high-voltage circuit breakers and make corresponding compensation for the contact action time deviation.

[0003] Traditional testing methods require the use of sensors, such as sliding resistance sensors or grating sensors, which have the disadvantages of low test accuracy, complex sensor installation, and inability to conduct online testing. At the same time, for circuit breakers whose opening and closing speeds do not meet the requirements, the opening and closing springs are usually adjusted based on experience to make them within the qualified range. This method requires many adjustments and requires the circuit breaker to be opened and closed multiple times, which affects the life of the equipment and has low work efficiency. Summary of the invention

[0004] The purpose of the present invention is to provide a circuit breaker spring operating mechanism operation detection and adjustment device and method, which can avoid multiple adjustments of the closing spring while ensuring the stability of the circuit breaker action characteristic measurement, improve work efficiency and extend the service life of the mechanism.

[0005] In order to achieve the above object, the solution of the present invention is:

[0006] A circuit breaker spring operating mechanism operation detection and adjustment device, comprising:

[0007] A data acquisition module is configured to acquire contact displacement data and closing spring pressure data;

[0008] A data judgment module is configured to judge whether the contact displacement is within a normal range and whether the closing spring pressure reaches a tolerable maximum value; and

[0009] The operating mechanism control module is configured to compensate the contact action time according to the judgment result of the data judgment module.

[0010] The data acquisition module is configured to acquire contact displacement data, including:

[0011] An image acquisition module is configured to acquire a movement image of a circuit breaker crank arm of a spring operating mechanism;

[0012] The image processing module is configured to restore the moving image to obtain a set of continuous still images; and the image processing module is configured to obtain the displacement of the crank arm based on the continuous still images, and then obtain the contact displacement.

[0013] The image processing module is configured to obtain the displacement of the crank arm based on the continuous still images, including:

[0014] Performing noise reduction and image enhancement on each of the still images;

[0015] Select the target area of ​​interest in the image, determine the key points in the target area, match the key points of adjacent frame images, and determine the corresponding matching point pairs;

[0016] The matching points are tracked to obtain the displacement of the crank arm.

[0017] The operating mechanism control module is configured to compensate the contact action time according to the judgment result of the data judgment module, including:

[0018] When the contact displacement is within the normal range, no contact action time compensation is performed;

[0019] When the contact displacement is not within the normal range and the closing spring pressure has not reached the maximum tolerable value, adjust the closing spring compression;

[0020] When the contact displacement is not within the normal range and the closing spring pressure reaches the maximum tolerable value, adjust the voltage across the electromagnet or adjust the displacement of the electromagnet moving iron core.

[0021] Among them, adjusting the compression amount of the closing spring includes:

[0022] Acquire the closing action time when the contact is displaced, and calculate the contact action time deviation between the closing action time and a normal situation;

[0023] According to the contact action time deviation, the compression amount of the closing spring is adjusted, thereby increasing or decreasing the closing spring preload, changing the contact displacement speed and thus changing the closing action time.

[0024] Wherein, regulating the voltage across the electromagnet includes setting a drive circuit, wherein the drive circuit includes a voltage source, a first resistor, a first triode, a second triode, a capacitor, a first diode, a TVS diode, an inductor, and a second resistor, wherein the positive electrode of the voltage source is connected to the collector of the first triode, and the negative electrode of the voltage source is connected to one end of the first resistor; the emitter of the first triode is respectively connected to the collector of the second triode and the anode of the capacitor, the emitter of the second triode is respectively connected to the anode of the TVS diode and one end of the inductor, the cathode of the TVS diode is connected to the cathode of the first diode, and the other end of the inductor is connected to one end of the second resistor; the other end of the first resistor, the cathode of the capacitor, the anode of the first diode, and the other end of the second resistor are connected;

[0025] First, the first transistor is controlled to be turned on and the second transistor is turned off. At this time, the capacitor is charged and the capacitor voltage is adjusted by controlling the charging time. Then, the first transistor is controlled to be turned off and the second transistor is turned off. When the switch needs to be closed, the first transistor is controlled to be turned off and the second transistor is controlled to be turned on. The capacitor voltage is loaded on both ends of the electromagnet to adjust the voltage at both ends of the electromagnet.

[0026] Wherein, adjusting the displacement of the electromagnet moving iron core includes providing a washer on a side of the baffle plate facing the electromagnet moving iron core, and changing the displacement of the moving iron core by adjusting the thickness of the washer.

[0027] A method for detecting and adjusting the operation of a circuit breaker spring operating mechanism, comprising:

[0028] Acquire contact displacement data and closing spring pressure data;

[0029] Determine whether the contact displacement is within a normal range and whether the closing spring pressure reaches the maximum tolerable value;

[0030] The contact action time is compensated according to the judgment result of the data judgment module.

[0031] Wherein, obtaining the contact displacement data includes:

[0032] Acquire a moving image of a circuit breaker crank arm of a spring operating mechanism;

[0033] Restoring the moving image to obtain a set of continuous still images;

[0034] Based on the continuous still images, the arm displacement is obtained, and then the contact displacement is obtained.

[0035] Wherein, obtaining the contact displacement data includes:

[0036] Based on the continuous still images, the displacement of the crank arm is obtained, including:

[0037] Performing noise reduction and image enhancement on each of the still images;

[0038] Select the target area of ​​interest in the image, determine the key points in the target area, match the key points of adjacent frame images, and determine the corresponding matching point pairs;

[0039] The matching points are tracked to obtain the displacement of the crank arm.

[0040] Wherein, according to the judgment result of the data judgment module, the contact action time is compensated, including:

[0041] When the contact displacement is within the normal range, no contact action time compensation is performed;

[0042] When the contact displacement is not within the normal range and the closing spring pressure has not reached the maximum tolerable value, adjust the closing spring compression;

[0043] When the contact displacement is not within the normal range and the closing spring pressure reaches the maximum tolerable value, adjust the voltage across the electromagnet or adjust the displacement of the electromagnet moving iron core.

[0044] Among them, adjusting the compression amount of the closing spring includes:

[0045] Acquire the closing action time when the contact is displaced, and calculate the contact action time deviation between the closing action time and a normal situation;

[0046] According to the contact action time deviation, the compression amount of the closing spring is adjusted, thereby increasing or decreasing the closing spring preload, changing the contact displacement speed and thus changing the closing action time.

[0047] Wherein, regulating the voltage across the electromagnet includes setting a drive circuit, wherein the drive circuit includes a voltage source, a first resistor, a first triode, a second triode, a capacitor, a first diode, a TVS diode, an inductor, and a second resistor, wherein the positive electrode of the voltage source is connected to the collector of the first triode, and the negative electrode of the voltage source is connected to one end of the first resistor; the emitter of the first triode is respectively connected to the collector of the second triode and the anode of the capacitor, the emitter of the second triode is respectively connected to the anode of the TVS diode and one end of the inductor, the cathode of the TVS diode is connected to the cathode of the first diode, and the other end of the inductor is connected to one end of the second resistor; the other end of the first resistor, the cathode of the capacitor, the anode of the first diode, and the other end of the second resistor are connected;

[0048] First, the first transistor is controlled to be turned on and the second transistor is turned off. At this time, the capacitor is charged and the capacitor voltage is adjusted by controlling the charging time. Then, the first transistor is controlled to be turned off and the second transistor is turned off. When the switch needs to be closed, the first transistor is controlled to be turned off and the second transistor is controlled to be turned on. The capacitor voltage is loaded on both ends of the electromagnet to adjust the voltage at both ends of the electromagnet.

[0049] Wherein, adjusting the displacement of the electromagnet moving iron core includes providing a washer on a side of the baffle plate facing the electromagnet moving iron core, and changing the displacement of the moving iron core by adjusting the thickness of the washer.

[0050] A computer device comprises a memory, a processor, and a computer program stored in the memory and executable on the processor; when the processor executes the computer program, the steps of the above-mentioned method for detecting and adjusting the operation of a circuit breaker spring operating mechanism are implemented.

[0051] A computer-readable storage medium stores a computer program; when the computer program is executed by a processor, the steps of the above-mentioned method for detecting and adjusting the operation of a circuit breaker spring operating mechanism are implemented.

[0052] After adopting the above scheme, compared with the prior art, the measurement method of the present invention is less affected by environmental factors such as temperature and light, the non-contact measurement method avoids mechanism wear, the measurement error is small, and the measurement stability can be guaranteed. At the same time, adjusting the closing spring compression amount and the control voltage according to the displacement deviation can avoid multiple adjustments, improve work efficiency, and avoid affecting the life of the mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Figure 1 It is the structural diagram of the spring operating mechanism of the circuit breaker;

[0054] Figure 2 It is the electromagnet drive circuit diagram of the operating mechanism control module;

[0055] Figure 3 It is a structural diagram of the electromagnet moving iron core and baffle. DETAILED DESCRIPTION

[0056] The technical solutions and beneficial effects of the present invention will be described in detail below with reference to the accompanying drawings.

[0057] The present invention provides a circuit breaker spring operating mechanism operation detection and adjustment device, comprising:

[0058] A data acquisition module is configured to acquire contact displacement data and closing spring pressure data;

[0059] A data judgment module is configured to judge whether the contact displacement is within a normal range and whether the closing spring pressure reaches a tolerable maximum value; and

[0060] The operating mechanism control module is configured to compensate the contact action time according to the judgment result of the data judgment module.

[0061] The present invention also provides a method for detecting and adjusting the operation of a circuit breaker spring operating mechanism, comprising:

[0062] Obtain contact displacement data and closing spring pressure data;

[0063] Determine whether the contact displacement is within a normal range and whether the closing spring pressure reaches the maximum tolerable value;

[0064] The contact action time is compensated according to the judgment result of the data judgment module.

[0065] The spring operating mechanism used in the present invention is as follows Figure 1 As shown, the contact action time of the spring operating mechanism includes: electromagnet action time, latch action time, and closing action time. When the external control circuit sends a closing signal, the closing electromagnet 4 is energized, the electromagnet moving iron core moves to push the latch to break the force balance of the closing spring 2, the closing spring 2 releases energy, drives the crank arm 1 to move, the crank arm 1 drives the closing cam to rotate, and then the contact is closed in place through the connecting rod mechanism.

[0066] The data acquisition module in the present invention adopts a pressure sensor to obtain the closing spring pressure data. The pressure sensor can adopt a strain type pressure sensor, which is installed inside the closing spring tank. The strain type pressure sensor has a simple structure, high measurement accuracy, fast dynamic response, small size, and light weight. It is suitable for compact installation environments and can be used for spring operating mechanisms to detect the closing spring force during the closing process.

[0067] The data acquisition module is also used to acquire contact displacement data, and an image acquisition module and an image processing module are used to complete this function, wherein the image acquisition module may include a high-speed camera, and the high-speed camera is used to shoot the crank arm outside the mechanism to indirectly determine the contact displacement. Since the contact of the circuit breaker is located in the arc extinguishing chamber, it is impossible to directly capture its actual displacement curve, so the contact displacement is indirectly acquired by shooting the crank arm outside the mechanism.

[0068] The image processing module restores the circuit breaker arm image captured by the high-speed camera into a continuous still image. Specifically, the image processing module preprocesses the image information captured by the high-speed camera, and the preprocessing includes: noise reduction processing and image enhancement. The bilateral filtering algorithm is used to filter and reduce noise on the image to retain the edge features of the image. The Laplace algorithm is used for image enhancement to enhance the useful information in the image and improve the visual effect of the overall image.

[0069] The image processing module uses a characteristic optical flow field algorithm based on the SURF feature points to obtain the displacement of the crank arm: first select the target area of ​​interest from the processed image, use the SURF algorithm to detect the key points in the target area of ​​the image, and calculate the feature description of each key point. Match the key points in the previous frame image with the key points in the next frame image, purify the matching pairs by the ratio purification method and the two-way purification method, and screen out the correct matching point pairs. Use the optical flow field algorithm to track the trajectory of the matching points to obtain the displacement of the crank arm.

[0070] After obtaining the arm displacement, the data judgment module determines whether the contact displacement is within the normal range by comparing it with the arm displacement curve during normal closing, and calculates the deviation between the closing action time and the contact action time under normal conditions. Compare whether the closing spring pressure reaches the threshold, and provide a reference for the operating mechanism control module to select the time compensation method.

[0071] The operating mechanism control module makes a decision based on the result of the judgment by the data judgment module. When the contact displacement is not within the range, the contact action time is compensated accordingly based on whether the closing spring pressure reaches the threshold.

[0072] Among them, the contact action time compensation methods include the following three: (1) adjusting the closing spring preload to change the closing action time, (2) adjusting the control voltage to change the electromagnet output, and (3) adjusting the displacement of the electromagnet moving iron core to change the iron core movement time.

[0073] Specifically, when the closing spring pressure recorded by the pressure sensor does not reach the maximum value that the system can withstand, the compensation method (1) is selected to adjust the compression of the closing spring according to the contact action time deviation, increase or decrease the closing spring preload, change the contact displacement speed and thus change the closing action time, thereby changing the closing time and realizing compensation for the contact action time;

[0074] When the closing spring pressure recorded by the pressure sensor reaches the maximum value that the system can withstand, select compensation method (2) or (3) to change the closing time by changing the electromagnet action time;

[0075] The driving circuit diagram of the electromagnet in compensation method (2) is as follows: Figure 2 The control circuit changes the control voltage at both ends of the electromagnet by adjusting the capacitor charging time, thereby increasing or decreasing the electromagnetic force, increasing or decreasing the speed of the moving iron core, and achieving the purpose of shortening or increasing the movement time of the iron core.

[0076] In the above-mentioned drive circuit, V1 and V2 are triodes, V3 and V4 are ordinary diodes and TVS (transient voltage suppressor) diodes respectively, and the function of TVS diode is to quickly absorb the voltage greater than its threshold value. The drive circuit is divided into three states. In the first state, V1 is controlled to be turned on and V2 is turned off. At this time, the purpose of charging the capacitor is achieved, and the capacitor voltage is changed by controlling the charging time. In the second state, V1 and V2 are controlled to be turned off. At this time, the capacitor voltage is guaranteed to be unchanged. After receiving the closing command, the third state is entered. In the third state, V1 is controlled to be turned off and V2 is turned on, and the capacitor voltage is added to both ends of the electromagnet to drive the moving iron core to move. After the closing is completed, it returns to the first state, and the TVS characteristics are used to make the reverse current quickly consumed, so as to realize the rapid release of the electromagnet.

[0077] Compensation method (3) is to change the closing time by changing the moving iron core stroke, such as Figure 3 Moving iron core movement time: Under two consecutive actions, the coil wear can be ignored, and the coil electromagnetic force and friction force can be regarded as constant, that is, the moving iron core movement speed remains unchanged, so the closing time can be adjusted by changing the movement stroke. Figure 1 and Figure 3 As shown, after the coil is energized, the moving iron core 5 of the electromagnet 4 moves upward until it pushes the baffle 3. Simply by adding a washer with variable thickness in front of the baffle 3, the moving length of the moving iron core 5 can be shortened, that is, the moving stroke of the moving iron core can be changed, so that the closing time can be adjusted according to the deviation to meet the requirements.

[0078] An embodiment of the present invention further provides another computer device, including a processor and a memory configured to store a computer program that can be run on the processor; wherein, when the processor is configured to run the computer program, the method steps in the aforementioned embodiment are executed.

[0079] In practical applications, the processor includes a field programmable gate array (FPGA), and the processor may be a central processing unit (CPU) or a digital signal processor (DSP). It is understandable that for different devices, the electronic device used to implement the function of the processor may be other, and the embodiment of the present invention does not specifically limit it.

[0080] The above-mentioned memory can be a volatile memory (volatile memory), such as a random access memory (RAM); or a non-volatile memory (non-volatile memory), such as a read-only memory (ROM), a flash memory, a hard disk (HDD) or a solid-state drive (SSD); or a combination of the above-mentioned types of memory, and provide instructions and data to the processor.

[0081] In an exemplary embodiment, an embodiment of the present invention further provides a computer-readable storage medium for storing a computer program.

[0082] Optionally, the computer-readable storage medium can be applied to any one of the methods in the embodiments of the present invention, and the computer program enables the computer to execute the corresponding processes implemented by the processor in each method in the embodiments of the present invention. For the sake of brevity, they are not described here.

[0083] In the several embodiments provided by the present invention, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as: multiple units or components can be combined, or can be integrated into another system, or some features can be ignored or not executed. In addition, the coupling, direct coupling, or communication connection between the components shown or discussed can be through some interfaces, and the indirect coupling or communication connection of the devices or units can be electrical, mechanical or other forms.

[0084] It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes. The schemes in the embodiments of the present invention may be implemented in various computer languages, for example, object-oriented programming language Java and literal scripting language JavaScript, etc.

[0085] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0086] These computer program instructions may also be stored in a computer readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture including an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0087] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0088] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0089] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A circuit breaker spring operating mechanism operation detection and adjustment device, characterized in that: include, A data acquisition module is configured to acquire contact displacement data and closing spring pressure data; A data judgment module is configured to judge whether the contact displacement is within a normal range and whether the closing spring pressure reaches a tolerable maximum value; and The operating mechanism control module is configured to compensate the contact action time according to the judgment result of the data judgment module.

2. The device according to claim 1, characterized in that: The data acquisition module is configured to acquire contact displacement data, including: An image acquisition module is configured to acquire a movement image of a circuit breaker crank arm of a spring operating mechanism; The image processing module is configured to restore the moving image to obtain a set of continuous still images; and the image processing module is configured to obtain the displacement of the crank arm based on the continuous still images, and then obtain the contact displacement.

3. The device according to claim 2, characterized in that: The image processing module is configured to obtain the displacement of the crank arm based on the continuous still images, including: Performing noise reduction and image enhancement on each of the still images; Select the target area of ​​interest in the image, determine the key points in the target area, match the key points of adjacent frame images, and determine the corresponding matching point pairs; The matching points are tracked to obtain the displacement of the crank arm.

4. The device according to claim 1, characterized in that: The operating mechanism control module is configured to compensate the contact action time according to the judgment result of the data judgment module, including: When the contact displacement is within the normal range, no contact action time compensation is performed; When the contact displacement is not within the normal range and the closing spring pressure has not reached the maximum tolerable value, adjust the closing spring compression; When the contact displacement is not within the normal range and the closing spring pressure reaches the maximum tolerable value, adjust the voltage across the electromagnet or adjust the displacement of the electromagnet moving iron core.

5. The device according to claim 4, characterized in that: Adjust the closing spring compression, including, Acquire the closing action time when the contact is displaced, and calculate the contact action time deviation between the closing action time and a normal situation; According to the contact action time deviation, the compression amount of the closing spring is adjusted, thereby increasing or decreasing the closing spring preload, changing the contact displacement speed and thus changing the closing action time.

6. The device according to claim 4, characterized in that: Regulating the voltage across the electromagnet includes setting a drive circuit, wherein the drive circuit includes a voltage source, a first resistor, a first triode, a second triode, a capacitor, a first diode, a TVS diode, an inductor, and a second resistor, wherein the positive electrode of the voltage source is connected to the collector of the first triode, and the negative electrode of the voltage source is connected to one end of the first resistor; the emitter of the first triode is respectively connected to the collector of the second triode and the anode of the capacitor, the emitter of the second triode is respectively connected to the anode of the TVS diode and one end of the inductor, the cathode of the TVS diode is connected to the cathode of the first diode, and the other end of the inductor is connected to one end of the second resistor; the other end of the first resistor, the cathode of the capacitor, the anode of the first diode, and the other end of the second resistor are connected; First, the first transistor is controlled to be turned on and the second transistor is turned off. At this time, the capacitor is charged and the capacitor voltage is adjusted by controlling the charging time. Then, the first transistor is controlled to be turned off and the second transistor is turned off. When the switch needs to be closed, the first transistor is controlled to be turned off and the second transistor is controlled to be turned on. The capacitor voltage is loaded on both ends of the electromagnet to adjust the voltage at both ends of the electromagnet.

7. The device according to claim 4, characterized in that: The displacement of the electromagnet moving iron core is adjusted, including providing a washer on a side of the baffle plate facing the electromagnet moving iron core, and changing the displacement of the moving iron core by adjusting the thickness of the washer.

8. A method for detecting and adjusting the operation of a circuit breaker spring operating mechanism, characterized in that: include, Acquire contact displacement data and closing spring pressure data; Determine whether the contact displacement is within a normal range and whether the closing spring pressure reaches the maximum tolerable value; The contact action time is compensated according to the judgment result of the data judgment module.

9. The method according to claim 8, characterized in that: Acquire contact displacement data, including, Acquire a moving image of a circuit breaker crank arm of a spring operating mechanism; Restoring the moving image to obtain a set of continuous still images; Based on the continuous still images, the arm displacement is obtained, and then the contact displacement is obtained.

10. The method according to claim 9, characterized in that: Acquire contact displacement data, including, Based on the continuous still images, the displacement of the crank arm is obtained, including: Performing noise reduction and image enhancement on each of the still images; Select the target area of ​​interest in the image, determine the key points in the target area, match the key points of adjacent frame images, and determine the corresponding matching point pairs; The matching points are tracked to obtain the displacement of the crank arm.

11. The method according to claim 8, characterized in that: According to the judgment result of the data judgment module, the contact action time is compensated, including: When the contact displacement is within the normal range, no contact action time compensation is performed; When the contact displacement is not within the normal range and the closing spring pressure has not reached the maximum tolerable value, adjust the closing spring compression; When the contact displacement is not within the normal range and the closing spring pressure reaches the maximum tolerable value, adjust the voltage across the electromagnet or adjust the displacement of the electromagnet moving iron core.

12. The method according to claim 11, characterized in that: Adjust the closing spring compression, including, Acquire the closing action time when the contact is displaced, and calculate the contact action time deviation between the closing action time and a normal situation; According to the contact action time deviation, the compression amount of the closing spring is adjusted, thereby increasing or decreasing the closing spring preload, changing the contact displacement speed and thus changing the closing action time.

13. The method according to claim 11, characterized in that: Regulating the voltage across the electromagnet includes setting a drive circuit, wherein the drive circuit includes a voltage source, a first resistor, a first triode, a second triode, a capacitor, a first diode, a TVS diode, an inductor, and a second resistor, wherein the positive electrode of the voltage source is connected to the collector of the first triode, and the negative electrode of the voltage source is connected to one end of the first resistor; the emitter of the first triode is respectively connected to the collector of the second triode and the anode of the capacitor, the emitter of the second triode is respectively connected to the anode of the TVS diode and one end of the inductor, the cathode of the TVS diode is connected to the cathode of the first diode, and the other end of the inductor is connected to one end of the second resistor; the other end of the first resistor, the cathode of the capacitor, the anode of the first diode, and the other end of the second resistor are connected; First, the first transistor is controlled to be turned on and the second transistor is turned off. At this time, the capacitor is charged and the capacitor voltage is adjusted by controlling the charging time. Then, the first transistor is controlled to be turned off and the second transistor is turned off. When the switch needs to be closed, the first transistor is controlled to be turned off and the second transistor is controlled to be turned on. The capacitor voltage is loaded on both ends of the electromagnet to adjust the voltage at both ends of the electromagnet.

14. The method according to claim 11, characterized in that: The displacement of the electromagnet moving iron core is adjusted, including providing a washer on a side of the baffle plate facing the electromagnet moving iron core, and changing the displacement of the moving iron core by adjusting the thickness of the washer.

15. A computer device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor; characterized in that: When the processor executes the computer program, the steps of the circuit breaker spring operating mechanism operation detection and adjustment method as described in any one of claims 8 to 14 are implemented.

16. A computer-readable storage medium storing a computer program; characterized in that: When the computer program is executed by a processor, the steps of the circuit breaker spring operating mechanism operation detection and adjustment method as claimed in any one of claims 8 to 14 are implemented.

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