Disconnecting switch device fault diagnosis method and device and electronic equipment

Abstract

The invention discloses an isolating switch device fault diagnosis method and device and electronic equipment. The fault diagnosis method comprises the following steps: acquiring the output power of the disconnecting switch in real time; determining a relation curve of the output power of the disconnecting switch and time according to the output power of the disconnecting switch at each moment; and determining the health state of the disconnecting switch device according to the relation curve of the output power and the time. The efficiency of fault diagnosis of the disconnecting switch device is effectively improved, and the detection result is objective and comprehensive.

Description

Technical Field

[0001] The present invention relates to the technical field of power systems, and in particular to a fault diagnosis method, device and electronic equipment for an isolating switch device. Background Art

[0002] Most of the isolating switch devices are operated outdoors, where the working conditions are bad and they are prone to damage. At present, the inspection of isolating switch devices mainly relies on the staff to regularly inspect the appearance and manually operate the isolating switch to check whether it is open and closed smoothly. However, this method of manual inspection has the disadvantages of strong subjectivity, incomplete inspection and low efficiency. Summary of the invention

[0003] The present invention provides a disconnect switch device fault diagnosis method, device and electronic equipment to improve the objectivity, comprehensiveness and efficiency of disconnect switch device detection.

[0004] According to one aspect of the present invention, a method for diagnosing a fault of an isolating switch device is provided, the method comprising:

[0005] Acquire the output power of the isolating switch motor in real time;

[0006] Determine a curve of the relationship between the output power and time of the isolating switch motor according to the output power of the isolating switch motor at each moment;

[0007] The health status of the isolating switch device is determined according to the output power and time relationship curve.

[0008] According to another aspect of the present invention, a disconnector fault diagnosis device is provided, the fault diagnosis device comprising:

[0009] A power acquisition module, used to acquire the output power of the isolating switch motor in real time;

[0010] A curve acquisition module, used to determine a curve of the relationship between the output power and time of the isolating switch motor according to the output power of the isolating switch motor at each moment;

[0011] A fault diagnosis module is used to determine the health status of the isolation switch device according to the output power and time relationship curve.

[0012] According to another aspect of the present invention, an electronic device is provided, the electronic device comprising:

[0013] at least one processor; and

[0014] a memory communicatively connected to the at least one processor; wherein,

[0015] The memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can execute the disconnector fault diagnosis method described in any embodiment of the present invention.

[0016] According to another aspect of the present invention, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement the disconnector fault diagnosis method described in any embodiment of the present invention when executed.

[0017] The embodiment of the present invention monitors the output power of the isolating switch in real time, plots the output power and time relationship curve of the isolating switch, and determines the working state of the isolating switch device by analyzing the characteristics of the output power and time relationship curve. Among them, the output power and time relationship curve provides dynamic data of the isolating switch device at different time points, which can reflect the various state changes of the isolating switch in actual operation, such as load changes, stability, fault signs, etc. The present invention solves the problem that it is difficult to obtain the status of the equipment in real time in traditional monitoring methods, especially in the case of frequent load changes, and can provide more accurate and timely status feedback. The present invention effectively improves the efficiency of fault diagnosis of the isolating switch device, and the detection results are objective and comprehensive.

[0018] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 A flow chart of a method for diagnosing faults of an isolating switch device provided by an embodiment of the present invention;

[0021] Figure 2 A flow chart of another isolating switch device fault diagnosis method provided by an embodiment of the present invention;

[0022] Figure 3 A flow chart of another isolating switch device fault diagnosis method provided by an embodiment of the present invention;

[0023] Figure 4 A flow chart of another isolating switch device fault diagnosis method provided by an embodiment of the present invention;

[0024] Figure 5 A flow chart of another isolating switch device fault diagnosis method provided by an embodiment of the present invention;

[0025] Figure 6 A schematic diagram of the structure of a fault diagnosis device for an isolating switch device provided by an embodiment of the present invention;

[0026] Figure 7 A schematic diagram of the structure of an electronic device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0028] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0029] In an embodiment of the present invention, the isolating switch device includes a control circuit and an isolating switch.

[0030] Specifically, an isolating switch refers to a switch used in electrical equipment, which is mainly used to provide safe isolation in the circuit. The function of the isolating switch is to ensure that the power supply is completely cut off when the equipment is overhauled or maintained to prevent accidental electric shock or equipment damage. The control circuit refers to the circuit in the isolating switch device used to control the operation of the isolating switch, which is located in the internal chassis of the isolating switch device.

[0031] Figure 1This is a flow chart of a method for diagnosing a fault of an isolating switch device provided by an embodiment of the present invention. This embodiment can be applied to detecting the health status of an isolating switch device. The method can be executed by a device for diagnosing a fault of an isolating switch device. The device for diagnosing a fault of an isolating switch device can be implemented in the form of hardware and / or software. The device for diagnosing a fault of an isolating switch device can be configured in an electronic device. Figure 1 As shown, the method includes:

[0032] S110, obtaining the output power of the isolating switch motor in real time.

[0033] Specifically, output power refers to the power provided by the disconnect switch motor to its external load, which is usually expressed in watts (W) or kilowatts (kW), and can reflect the working efficiency and load conditions of the disconnect switch motor.

[0034] In the embodiment of the present invention, real-time acquisition of the output power of the isolating switch motor can help operation and maintenance personnel understand the working status of the isolating switch device and discover abnormal conditions in time, thereby improving the safety and reliability of the power system.

[0035] S120. Determine a curve of the relationship between the output power and time of the isolating switch motor according to the output power of the isolating switch motor at each moment.

[0036] Specifically, the output power versus time curve refers to a curve drawn with time as the horizontal axis and the output power of the disconnector motor as the vertical axis in a coordinate system, which can reflect the changing trend of the output power of the disconnector motor over time.

[0037] In the embodiment of the present invention, the shape of the output power versus time curve can reflect the working status of the isolating switch at different time periods, thereby providing data support for analyzing whether a fault occurs in the isolating switch device.

[0038] S130. Determine the health status of the isolating switch device according to the output power and time relationship curve.

[0039] Specifically, the health status refers to the operating status and performance level of the isolating switch device, which is usually used to evaluate whether the isolating switch device has a fault or potential problem. For example, the output power versus time curve is stable and has no obvious fluctuations, indicating that the isolating switch device is operating normally, the output power is stable, and the load change is within an acceptable range.

[0040] The embodiment of the present invention monitors the output power of the isolating switch motor in real time, plots the output power and time relationship curve of the isolating switch motor, and determines the working state of the isolating switch device by analyzing the characteristics of the output power and time relationship curve. Among them, the output power and time relationship curve provides dynamic data of the isolating switch device at different time points, which can reflect the various state changes of the isolating switch in actual operation, such as load changes, stability, fault signs, etc. The present invention solves the problem that it is difficult to obtain the status of the equipment in real time in traditional monitoring methods, especially in the case of frequent load changes, and can provide more accurate and timely status feedback. The present invention effectively improves the efficiency of fault diagnosis of the isolating switch device, and the detection results are objective and comprehensive.

[0041] Figure 2 Flow chart of another isolating switch device fault diagnosis method provided by an embodiment of the present invention. Based on the above embodiments, Figure 2 As shown, optionally, the method includes:

[0042] S210, obtaining the output power of the isolating switch motor in real time.

[0043] S220. Determine a curve of the relationship between the output power and time of the isolating switch motor according to the output power of the isolating switch motor at each moment.

[0044] S230. Determine the closing action time, average closing power, maximum closing power, total work done during the closing process, and total work done during the opening process of the disconnector according to the output power and time relationship curve.

[0045] Specifically, the closing action time refers to the time required for the disconnector to close completely from the beginning of closing, which can reflect the response speed and operating efficiency of the equipment. In the output power and time relationship curve of the disconnector, the output power rises rapidly at the beginning of closing until it reaches a stable value. Therefore, the closing action time is the corresponding time range from the moment when the output power starts to rise rapidly to the moment when the output power reaches a stable value.

[0046] The average closing power refers to the average value of the output power of the disconnector during the closing process. The average closing power can be obtained by integrating the output power of the disconnector during the closing action time and dividing it by the closing action time.

[0047] The maximum closing power refers to the highest power value recorded during the closing process of the disconnector. This indicator can reveal the maximum load capacity of the disconnector at the moment of closing. The maximum closing power can be determined by finding the peak value of the output power during the closing process in the output power-time relationship curve of the disconnector.

[0048] The total work done during the closing process refers to the total work done by the output power of the disconnector during the closing process. In the output power and time relationship curve of the disconnector, the total work done during the closing process can be obtained by integrating the output power during the closing process.

[0049] The total work done during the opening process refers to the total work done by the output power of the disconnector during the opening process. In the output power and time relationship curve of the disconnector, the total work done during the opening process can be obtained by integrating the output power during the opening process.

[0050] In an embodiment of the present invention, the closing action time, average closing power, maximum closing power, total work done during the closing process, and total work done during the opening process of the disconnector can reflect the operating status and performance of the disconnector, and provide a basis for subsequent analysis of the health status of the disconnector device.

[0051] S240. Determine the jamming fault level of the disconnector according to the closing action time, the maximum closing power and the average closing power.

[0052] Specifically, the jamming fault level refers to the degree of failure of the isolating switch caused by the jamming of its internal mechanical parts or the unsmooth movement. Determining the jamming fault level of the isolating switch can provide a basis for the subsequent maintenance, replacement and management of the isolating switch.

[0053] S250. Determine the balance spring failure of the disconnector according to the closing action time, the average closing power, the total work done during the closing process, and the total work done during the opening process.

[0054] Specifically, balance spring failure refers to a failure of the balance spring in the disconnector caused by damage, fatigue or failure. The balance spring failure will directly affect the closing and opening performance of the disconnector, resulting in unstable operation and abnormal power parameters.

[0055] The embodiment of the present invention determines the jamming fault level and balance spring fault of the isolating switch device by analyzing the closing action time, average closing power, maximum closing power, total work done during the closing process, and total work done during the opening process of the isolating switch. Determining the jamming fault level and balance spring fault of the isolating switch can help maintenance personnel quickly assess the severity of the fault and then adopt targeted maintenance solutions. That is, the present invention effectively improves the fault diagnosis efficiency of the isolating switch device and is conducive to optimizing the configuration of maintenance resources.

[0056] Figure 3 Flow chart of another isolating switch device fault diagnosis method provided by an embodiment of the present invention. Based on the above embodiments, Figure 3 As shown, optionally, the method includes:

[0057] S310, obtaining the output power of the isolating switch motor in real time.

[0058] S320. Determine a curve of the relationship between the output power and time of the isolating switch motor according to the output power of the isolating switch motor at each moment.

[0059] S330: If the closing action time is within the first preset time range and the maximum closing power is within the second preset power range, it is determined that the disconnector has a serious jamming defect.

[0060] Specifically, the second preset power range refers to the preset maximum closing power of the disconnector that should meet another power interval, and the maximum closing power of the disconnector is a normal value within this power interval. Exemplarily, the second preset power range can be set to be greater than or equal to the rated closing power.

[0061] In the embodiment of the present invention, if the closing action time is within the first preset time range, it means that the response speed of the isolating switch is too fast; if the maximum closing power is within the second preset power range, it means that the maximum power output of the isolating switch when closing is normal, that is, the current or power that the isolating switch can withstand when closing is normal. This situation occurs because the internal components of the isolating switch may be worn or contaminated, resulting in limited movement during closing, thereby generating an overly fast closing action. That is, although the maximum output power of the isolating switch is normal, the movement of the isolating switch is not smooth due to the jamming.

[0062] S340. If the closing action time is within the second preset time range, the minimum value of the second preset time range is greater than the maximum value of the first preset time range, and the average closing power is within the third preset power range, and the maximum value of the third preset power range is less than or equal to the second preset power range, it is determined that the disconnector has a severe jamming defect.

[0063] Specifically, the second preset time range refers to another time interval that the preset closing action time of the disconnector should meet, and the closing action time meets the standard within this time interval. Exemplarily, the second preset time range can be set to be greater than or equal to 85% of the standard closing action time. The third preset power range refers to the power interval range that the average closing power of the disconnector should meet, and within the third preset power range, the average closing power of the disconnector is greater than the normal power range. Exemplarily, the third preset power range can be set to be greater than or equal to 85% of the rated closing power.

[0064] In the embodiment of the present invention, the closing action time being within the second preset time range indicates that the response time of the disconnector is in line with expectations; the average closing power being within the third preset power range indicates that the average closing power of the disconnector is too high. This occurs because, although the closing time of the disconnector is normal, due to its internal jamming, more power is required to overcome the obstacle during the closing process, so the disconnector has a severe jamming defect.

[0065] S350. If the closing action time is within the second preset time range, and the average closing power is within the fourth preset power range, and the maximum value of the fourth preset power range is less than the minimum value of the third preset power range, it is determined that the disconnector has a slight jamming defect.

[0066] The fourth preset power range refers to another power interval range that the average closing power of the disconnector should meet. In the fourth preset power range, the average closing power of the disconnector should be greater than the normal value, but not as serious as in the third preset power range. Exemplarily, the fourth preset power range can be set to be greater than or equal to 65% of the rated power to less than 85% of the rated closing power.

[0067] In the embodiment of the present invention, the closing action time being within the second preset time range indicates that the response time of the disconnector is in line with expectations; the average closing power being within the fourth preset power range indicates that the disconnector has a problem of a high average closing power, but is smaller than the average closing power of a severe jam defect. This occurs because, although the closing time of the disconnector is normal, due to its internal jamming, more power is required to overcome the obstacle during the closing process, but the extra power is less than the severe jam defect, so the disconnector has a light jam defect.

[0068] S370. If the closing action time is within the second preset time range, and the average closing power is within the fifth preset power range, the maximum value of the fifth preset power range is less than the minimum value of the fourth preset power range, and the ratio of the total work done in the closing process to the total work done in the opening process is within the first preset range, it is determined that the disconnector has a balance spring fatigue defect.

[0069] Specifically, the fifth preset power range refers to another power interval range that the average closing power of the disconnector should meet, and the average closing power of the disconnector is normal within this power interval. Exemplarily, the fifth preset power range can be set to be less than 60% of the rated power. The first preset range refers to the range where the ratio of the total work done during the closing process to the total work done during the opening process is preset, and within the first preset range, the ratio of the total work done during the closing process to the total work done during the opening process is less than or equal to the normal value. Exemplarily, the first preset range can be set to be less than or equal to 1.

[0070] Balance spring fatigue refers to the phenomenon that the elastic material of the balance spring gradually loses its elastic properties and load-bearing capacity due to repeated mechanical stress after long-term use or repeated loading. This fatigue may cause the spring to deform, break or fail, thus affecting the normal operation of the disconnector.

[0071] In the embodiment of the present invention, the closing action time is within the second preset time range, indicating that the response time of the disconnector is in line with expectations; the average closing power is within the fifth preset power range, indicating that the average closing power of the disconnector is in line with expectations; the ratio of the total work done during the closing process to the total work done during the opening process is within the first preset range, indicating that the energy required for closing the disconnector is less than the energy required for opening. This situation usually means that the closing efficiency is reduced, which is related to the fatigue of the balance spring of the disconnector.

[0072] Optionally, based on the above embodiments, continue to refer to Figure 3 The isolating switch device includes a control circuit and an isolating switch; after determining the closing action time, average closing power, maximum closing power, total work done during the closing process and total work done during the opening process of the isolating switch according to the output power and time relationship curve, it also includes:

[0073] S360: If the closing action time is within the first preset time range, and the maximum closing power is within the first preset power range, and the maximum value of the first preset power range is less than the maximum value of the second preset power range, it is determined that the control loop is faulty.

[0074] Specifically, the first preset time range refers to the time interval that the preset disconnector closing action time should meet, and the closing action time within the first preset time range represents that the closing time of the disconnector is less than the standard value. Exemplarily, the first preset time range can be set to 0 to less than 85% of the closing action standard time. The first preset power range refers to the power interval that the preset maximum closing power of the disconnector should meet, and within this power interval, the maximum closing power is less than the standard maximum closing power. Exemplarily, the first power range can be set to 0 to less than the rated closing power.

[0075] In the embodiment of the present invention, the closing action time is within the first preset time range, indicating that the response speed of the isolating switch is too fast; the maximum closing power is within the first preset power range, indicating that the isolating switch fails to reach the predetermined power output when closing. This situation occurs because there is a problem of abnormal signal processing in the control circuit, which causes the isolating switch to close too quickly and fail to operate correctly.

[0076] Optionally, based on the above embodiments, continue to refer to Figure 3, after determining the fault of the isolating switch balance spring according to the closing action time, the average closing power, the total work done during the closing process and the total work done during the opening process, it also includes:

[0077] S380. If the closing action time is within the second preset time range, and the average closing power is within the fifth preset power range, and the ratio of the total work done in the closing process to the total work done in the opening process is within the second preset range, and the minimum value of the second preset range is greater than the maximum value of the first preset range, it is determined that the mechanical state of the disconnector is normal.

[0078] Specifically, the second preset range refers to another preset range of the ratio of the total work done during the closing process to the total work done during the opening process, and within the second preset range, the ratio of the total work done during the closing process to the total work done during the opening process is a normal value. Exemplarily, the first preset range can be set to be greater than 1.

[0079] In the embodiment of the present invention, the closing action time is within the second preset time range, indicating that the response time of the disconnector is in line with expectations; the average closing power is within the fifth preset power range, indicating that the average closing power of the disconnector is in line with expectations; the ratio of the total work done during the closing process to the total work done during the opening process is within the second preset range, indicating that the power required for closing the disconnector is greater than the power required for opening. In this case, the mechanical state of the disconnector is normal.

[0080] The embodiment of the present invention analyzes the closing action time, average closing power, maximum closing power, total work done during the closing process, and total work done during the opening process of the disconnector, clarifies the fault range of the disconnector device, clearly divides the jamming fault level of the disconnector, and can also identify the balance spring fault of the disconnector. The present invention provides a comprehensive disconnector fault diagnosis method, which can provide a scientific basis for the performance evaluation and fault diagnosis of the disconnector, which is helpful to formulate a targeted maintenance plan, thereby improving maintenance efficiency and reducing maintenance costs.

[0081] Figure 4 Flow chart of another isolating switch device fault diagnosis method provided by an embodiment of the present invention. Based on the above embodiments, Figure 4 As shown, optionally, the method includes:

[0082] S410, acquiring a voltage signal and a current signal output by the isolating switch motor in real time.

[0083] Specifically, the voltage signal refers to the voltage value output by each phase of the isolating switch motor. For example, the voltage signals are U A , U B and U C The current signal refers to the current value output by each phase of the isolating switch motor. For example, the current signals are IA ,I B and I C .

[0084] S420: Determine the input power of the isolating switch motor according to the voltage signal and the current signal.

[0085] Specifically, input power refers to the power drawn by the isolating switch motor from the power supply, which can be calculated using the following formula:

[0086] P1=U A *I A +U B *I B +U C *I C

[0087] Among them, P1 represents the input power.

[0088] S430, determining the output power of the isolating switch motor according to the input power of the isolating switch motor, the electromagnetic power of the isolating switch motor, the slip rate of the isolating switch motor, the mechanical loss of the isolating switch motor during operation, and the additional loss of the isolating switch motor during operation.

[0089] Specifically, electromagnetic power refers to the energy generated by electromagnetic induction between the rotor and stator inside the disconnector motor, which is the power that can drive the rotor to rotate. It can be calculated by the following formula:

[0090] P M =P1-P CU1 -P Fe

[0091] Among them, P M Represents electromagnetic power; P CU1 Represents the copper loss consumed in the stator resistance; P Fe Represents the iron loss consumed in the excitation resistance.

[0092] The slip rate is the difference between the actual rotor speed and the synchronous speed when the disconnector motor is in operation. Mechanical loss is the energy loss caused by friction, windage and other mechanical factors during the operation of the disconnector motor. Additional loss refers to the loss caused by the high-order harmonic flux and leakage flux generated during the operation of the disconnector motor, which is generated in the motor's iron core, base and other metal parts.

[0093] The output power of the disconnector motor can be calculated using the following formula:

[0094] P2`=(1-s)P M -P m -P r

[0095] Among them, P2` represents the output power; s represents the slip rate, P m represents mechanical loss; P r Represents additional loss.

[0096] Optionally, in an embodiment of the present invention, the isolating switch motor is a small asynchronous motor, and the additional loss is negligible, so its second output power can be calculated using the following formula:

[0097] P2=(1-s)(P1-3I1 2 R1 2 -K Fe U1 2 )-P m

[0098] Where P2 represents the second output power, I1 represents the phase current, and I A ,I B ,I C Average value; R1 is the equivalent resistance of the motor; K Fe Represents the motor back electromotive force coefficient; U1 represents the phase voltage, take U A , U B , U C The average value of .

[0099] S440. Determine a curve of the relationship between the output power and time of the isolating switch motor according to the output power of the isolating switch motor at each moment.

[0100] S450. Determine the health status of the isolating switch device according to the output power and time relationship curve.

[0101] The embodiment of the present invention determines the output power of the isolating switch by calculating the output power of the isolating switch motor, can grasp the operating status of the isolating switch in real time, instantly evaluate the load condition of the isolating switch, ensure that the isolating switch operates under normal conditions, and is conducive to improving the reliability of the operation of the isolating switch.

[0102] Figure 5 A flowchart of another isolating switch device fault diagnosis method provided by an embodiment of the present invention. For example, Figure 5As shown, the specific implementation steps of the method are: obtaining the output power of the disconnector motor in real time, and then determining the output power and time relationship curve of the disconnector motor according to the output power of the disconnector motor at each moment. According to the output power and time relationship curve, the closing action time, average closing power, maximum closing power, total work done in the closing process and total work done in the opening process of the disconnector are determined. Secondly, it is judged whether the closing action time is greater than or equal to 85% of the closing action standard time. If the judgment result is no, continue to judge whether the maximum closing power is greater than or equal to the rated closing power. If the judgment result is yes, it is determined that the disconnector has a serious stuck defect. If the judgment result is no, it is determined that the control circuit of the disconnector device is faulty. If the judgment result of whether the closing action time is greater than or equal to 85% of the closing action standard time is yes, continue to judge whether the average closing power is greater than or equal to 60% of the rated closing power. If the judgment result is no, continue to judge whether the ratio of the total work done in the closing process to the total work done in the opening process is greater than 1. If the judgment result is yes, it is determined that the mechanical state of the disconnector device is normal. If the judgment result is no, it is determined that the disconnector has a defect of balance spring fatigue. If the judgment result of whether the average closing power is greater than or equal to 60% of the rated closing power is yes, continue to judge whether the average closing power is greater than or equal to 85% of the rated closing power. If the judgment result is yes, it is determined that the disconnector has a severe jamming fault. If the judgment result is no, it is determined that the disconnector has a slight jamming fault.

[0103] Figure 6 The present invention provides a schematic diagram of a fault diagnosis device for an isolating switch device. Figure 6 As shown, the device comprises:

[0104] A power acquisition module 510 is used to acquire the output power of the isolating switch motor in real time;

[0105] The curve acquisition module 520 is used to determine the output power and time relationship curve of the isolating switch motor according to the output power of the isolating switch motor at each moment;

[0106] The fault diagnosis module 530 is used to determine the health status of the isolation switch device according to the output power and time relationship curve.

[0107] The isolating switch device fault diagnosis device provided in the embodiment of the present invention can execute the isolating switch device fault diagnosis method provided in any embodiment of the present invention, and has the corresponding functional modules and beneficial effects of the execution method.

[0108] Figure 7 Schematic diagram of the structure of an electronic device provided by an embodiment of the present invention. Figure 7As shown, the electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device may also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices (such as helmets, glasses, watches, etc.) and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present invention described and / or required herein.

[0109] like Figure 7 As shown, the electronic device 10 includes at least one processor 11, and a memory connected to the at least one processor 11, such as a read-only memory (ROM) 12, a random access memory (RAM) 13, etc., wherein the memory stores a computer program that can be executed by at least one processor, and the processor 11 can perform various appropriate actions and processes according to the computer program stored in the read-only memory (ROM) 12 or the computer program loaded from the storage unit 18 to the random access memory (RAM) 13. In the RAM 13, various programs and data required for the operation of the electronic device 10 can also be stored. The processor 11, the ROM 12, and the RAM 13 are connected to each other through a bus 14. An input / output (I / O) interface 15 is also connected to the bus 14.

[0110] A number of components in the electronic device 10 are connected to the I / O interface 15, including: an input unit 16, such as a keyboard, a mouse, etc.; an output unit 17, such as various types of displays, speakers, etc.; a storage unit 18, such as a disk, an optical disk, etc.; and a communication unit 19, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 19 allows the electronic device 10 to exchange information / data with other devices through a computer network such as the Internet and / or various telecommunication networks.

[0111] The processor 11 may be a variety of general and / or special processing components with processing and computing capabilities. Some examples of the processor 11 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various special artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any appropriate processor, controller, microcontroller, etc. The processor 11 executes the various methods and processes described above, such as the disconnector device fault diagnosis method.

[0112] In some embodiments, the isolating switch device fault diagnosis method can be implemented as a computer program, which is tangibly contained in a computer-readable storage medium, such as a storage unit 18. In some embodiments, part or all of the computer program can be loaded and / or installed on the electronic device 10 via the ROM 12 and / or the communication unit 19. When the computer program is loaded into the RAM 13 and executed by the processor 11, one or more steps of the isolating switch device fault diagnosis method described above can be performed. Alternatively, in other embodiments, the processor 11 can be configured to execute the isolating switch device fault diagnosis method in any other appropriate manner (for example, by means of firmware).

[0113] Various implementations of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chips (SOCs), complex programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various implementations can include: being implemented in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which can be a special purpose or general purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0114] Computer programs for implementing the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, so that when the computer program is executed by the processor, the functions / operations specified in the flow chart and / or block diagram are implemented. The computer program may be executed entirely on the machine, partially on the machine, partially on the machine and partially on a remote machine as a stand-alone software package, or entirely on a remote machine or server.

[0115] In the context of the present invention, a computer-readable storage medium may be a tangible medium that may contain or store a computer program for use by or in combination with an instruction execution system, device or equipment. A computer-readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices or equipment, or any suitable combination of the foregoing. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. A more specific example of a machine-readable storage medium may include an electrical connection based on one or more lines, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0116] To provide interaction with a user, the systems and techniques described herein may be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and a pointing device (e.g., a mouse or trackball) through which the user can provide input to the electronic device. Other types of devices may also be used to provide interaction with the user; for example, the feedback provided to the user may be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form (including acoustic input, voice input, or tactile input).

[0117] The systems and techniques described herein may be implemented in a computing system that includes backend components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes frontend components (e.g., a user computer with a graphical user interface or a web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such backend components, middleware components, or frontend components. The components of the system may be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), a blockchain network, and the Internet.

[0118] A computing system may include a client and a server. The client and the server are generally remote from each other and usually interact through a communication network. The client and server relationship is generated by computer programs running on the corresponding computers and having a client-server relationship with each other. The server may be a cloud server, also known as a cloud computing server or cloud host, which is a host product in the cloud computing service system to solve the defects of difficult management and weak business scalability in traditional physical hosts and VPS services.

[0119] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps described in the present invention can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of the present invention can be achieved, and this document does not limit this.

[0120] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for diagnosing faults of an isolating switch device, characterized in that: The fault diagnosis method comprises: Acquire the output power of the isolating switch motor in real time; Determine a curve of the relationship between the output power and time of the isolating switch motor according to the output power of the isolating switch motor at each moment; The health status of the isolating switch device is determined according to the output power and time relationship curve.

2. The fault diagnosis method for disconnecting switch device according to claim 1, characterized in that: Determining the health status of the isolating switch device according to the output power and time relationship curve includes: Determine the closing action time, average closing power, maximum closing power, total work done during the closing process, and total work done during the opening process of the disconnector according to the output power and time relationship curve; Determine the jamming fault level of the disconnector according to the closing action time, the maximum closing power and the average closing power; The balance spring failure of the disconnector is determined according to the closing action time, the average closing power, the total work done during the closing process, and the total work done during the opening process.

3. The fault diagnosis method for disconnecting switch device according to claim 2, characterized in that: The determining the jamming fault level of the disconnector according to the closing action time, the maximum closing power, and the average closing power includes: If the closing action time is within the first preset time range, and the maximum closing power is within the second preset power range, it is determined that the disconnector has a serious jamming defect; If the closing action time is within the second preset time range, the minimum value of the second preset time range is greater than the maximum value of the first preset time range, and the average closing power is within the third preset power range, and the maximum value of the third preset power range is less than or equal to the second preset power range, it is determined that the disconnector has a severe jamming defect; If the closing action time is within the second preset time range, and the average closing power is within the fourth preset power range, and the maximum value of the fourth preset power range is less than the minimum value of the third preset power range, it is determined that the disconnector has a slight jamming defect.

4. The fault diagnosis method for disconnecting switch device according to claim 3, characterized in that: The isolating switch device comprises a control circuit and an isolating switch; after determining the closing action time, average closing power, maximum closing power, total work done in the closing process and total work done in the opening process of the isolating switch according to the output power and time relationship curve, it also comprises: If the closing action time is within the first preset time range, and the maximum closing power is within the first preset power range, and the maximum value of the first preset power range is less than the maximum value of the second preset power range, it is determined that the control loop is faulty.

5. The fault diagnosis method for disconnecting switch device according to claim 2, characterized in that: The method of determining the fault of the isolating switch balance spring according to the closing action time, the average closing power, the total work done during the closing process, and the total work done during the opening process comprises: If the closing action time is within the second preset time range, and the average closing power is within the fifth preset power range, the maximum value of the fifth preset power range is less than the minimum value of the fourth preset power range, and the ratio of the total work done in the closing process to the total work done in the opening process is within the first preset range, it is determined that the disconnector has a balance spring fatigue defect.

6. The fault diagnosis method for disconnecting switch device according to claim 2, characterized in that: After determining the disconnector balance spring fault according to the closing action time, the average closing power, the total work done during the closing process, and the total work done during the opening process, the method further includes: If the closing action time is within the second preset time range, and the average closing power is within the fifth preset power range, and the ratio of the total work done in the closing process to the total work done in the opening process is within the second preset range, and the minimum value of the second preset range is greater than the maximum value of the first preset range, it is determined that the mechanical state of the disconnector is normal.

7. The fault diagnosis method for disconnecting switch device according to claim 1, characterized in that: The real-time acquisition of the output power of the isolating switch motor includes: Acquire the voltage signal and current signal output by the isolating switch motor in real time; Determining the input power of the isolating switch motor according to the voltage signal and the current signal; The output power of the isolating switch motor is determined according to the input power of the isolating switch motor, the electromagnetic power of the isolating switch motor, the slip rate of the isolating switch motor, the mechanical loss of the isolating switch motor during operation, and the additional loss of the isolating switch motor during operation.

8. A fault diagnosis device for an isolating switch device, characterized in that: The fault diagnosis device comprises: A power acquisition module, used to acquire the output power of the isolating switch motor in real time; A curve acquisition module, used to determine a curve of the relationship between the output power and time of the isolating switch motor according to the output power of the isolating switch motor at each moment; A fault diagnosis module is used to determine the health status of the isolation switch device according to the output power and time relationship curve.

9. An electronic device, characterized in that: The electronic device comprises: at least one processor; and a memory communicatively connected to the at least one processor; wherein, The memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can execute the disconnect switch device fault diagnosis method described in any one of claims 1-7.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement the disconnect switch device fault diagnosis method described in any of claims 1-7 when executed.

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