Circuit fault processing method, protection circuit, system, computer device and medium

Abstract

The application provides a circuit fault processing method, a protection circuit, a system, computer equipment and a medium. By dividing the protection circuit into multiple detection areas, judging the waveform information of the detection areas, positioning the detection section with a fault in the detection area, and then performing power-off recovery on the detection section, the application realizes power-off processing without the entire protection circuit, reduces the influence on the remaining areas in the protection circuit, solves the problem that the existing conventional on-site reclosing type feeder automation system removes the fault through sequential reclosing logic when a fault occurs in a line, causes short-term or long-term power failure in the non-fault section, and causes economic and social losses, and reduces the economic and social losses of power users.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of oil filter, in particular to a circuit fault processing method, a protection circuit, a system, a computer device and a medium. BACKGROUND

[0002] At present, the positioning of the phase-to-phase fault of the distribution line is mainly completed by the conventional on-site reclosing type feeder automation device. The conventional on-site reclosing type feeder automation does not depend on the control of the distribution main station. When a fault occurs in the distribution network, the detection area is located and isolated, the power supply of the non-detection area is restored, and the process and results are reported through protection cooperation or time sequence cooperation. It has the advantages of not depending on the main station and communication, reliable action, rapid processing, and adapting to harsh environments. Voltage time type is the most common on-site recloser type feeder automation mode. According to different application requirements, current auxiliary criteria are added on the basis of voltage time type, forming voltage current time type and self-adaptive comprehensive type and other derivative modes. Voltage time type feeder automation is realized by the working characteristics of switch "no voltage opening, power delay closing" cooperating with the secondary closing of the substation outlet switch. The primary closing isolates the fault interval, and the secondary closing restores the power supply of the non-fault section. The voltage current time type feeder automation realizes fault interval isolation and non-fault section power supply restoration through the memory of the number of voltage loss and the number of overcurrent in the fault processing process, cooperating with the multiple reclosing of the substation outlet switch.

[0003] However, the existing conventional on-site reclosing type feeder automation has the following disadvantages: when a fault occurs in the line, the fault needs to be removed by the substation outlet protection tripping first, and then removed by the sequential reclosing logic, resulting in short-time power failure in the non-fault section, and long-time power failure in the downstream line in the case of instantaneous fault, causing economic and social losses to users caused by short-time power failure and long-time power failure. SUMMARY

[0004] Therefore, it is necessary to propose a circuit fault processing method, a protection circuit, a system, a computer device and a medium for reducing power failure time during protection tripping.

[0005] A circuit fault processing method applied to a protection circuit, wherein the protection circuit is provided with a plurality of detection areas, each detection area is provided with a plurality of detection sections, each detection section is provided with a waveform acquisition device, and the waveform acquisition device is connected with a background system. The method comprises the following steps:

[0006] determining whether a fault occurs in the detection area;

[0007] if yes, acquiring the current waveform of the detection area through the waveform acquisition device;

[0008] identifying the detection section with the fault as the fault section according to the current waveform.

[0009] power recovery is performed on the fault section.

[0010] Further, the current waveform comprises acquisition nodes and current amplitudes, the acquisition nodes correspond to the waveform acquisition devices one by one;

[0011] The step of identifying the detection section with faults according to the current waveform and recording the detection section as a fault section specifically comprises:

[0012] According to the current amplitude, it is determined whether a fault waveform appears in the current waveform;

[0013] If yes, the first acquisition node with the fault waveform is acquired and recorded as a fault node,

[0014] The waveform acquisition device corresponding to the fault node is acquired, and the detection section corresponding to the waveform acquisition device is recorded as a fault section.

[0015] Further, after the step of identifying the detection section with faults according to the current waveform and recording the detection section as a fault section, the step further comprises:

[0016] A historical fault waveform matched with the fault section is acquired, the historical fault waveform is matched with a historical fault type of the detection section one by one;

[0017] It is determined whether the current waveform matches the historical fault waveform;

[0018] If yes, it is determined that the fault type of the fault section is consistent with the historical fault type, and the fault type is recorded as current fault information and then output.

[0019] Further, the protection circuit comprises a first protection section, an outlet switch and a first sectional switch, the outlet switch and the first sectional switch are arranged in the first protection section, the outlet switch is connected in series on the protection circuit and connected to the background system, the first sectional switch is connected in parallel on the protection circuit at the output end of the outlet switch, and the first sectional switch is further arranged in the detection section in the first protection section and connected to the background system;

[0020] The step of performing power recovery on the fault section specifically comprises:

[0021] It is determined whether the fault section is located in the first protection section;

[0022] If yes, the first sectional switch matched with the fault section is acquired and recorded as a first fault point switch;

[0023] The rest of the first sectional switch connected between the first fault point switch and the outlet switch is recorded as a connection point switch, and the first fault point switch is in a tripped state at this time;

[0024] The outlet switch is controlled to trip overstep, and the connection point switch is controlled to maintain a closed state;

[0025] The outlet switch and the first fault point switch are controlled to perform a closing test, and it is determined whether the first fault point switch passes the closing test;

[0026] If not, the outlet switch and the first sectional switch are tripped, and it is determined that the current fault is a permanent fault;

[0027] After the first fault point switch is controlled to lock the tripped state, the outlet switch and the first sectional switch are controlled to close, thereby realizing the function of isolating faults.

[0028] Further, after the step of controlling the outlet switch and the first fault point switch to perform a closing test and determining whether the first fault point switch passes the closing test, the method further comprises:

[0029] If yes, the outlet switch and the first fault point switch are controlled to maintain a closed state, and it is determined that the current fault is a transient fault.

[0030] Further, the protection circuit further comprises a second protection section and a second sectional switch, the second protection section is arranged on a side of the first protection section away from the outlet switch, the second sectional switch is arranged in the second protection section, the second sectional switch is connected in parallel to the protection circuit at an output end of the outlet switch, and the second sectional switch is further arranged in the detection section in the second protection section and connected to the background system;

[0031] The step of restoring power to the fault section, specifically comprises:

[0032] It is determined whether the fault section is located in the second protection section;

[0033] If yes, the second sectional switch matched with the fault section is obtained and recorded as a second fault point switch, and the second fault point switch is in a tripped state at this time;

[0034] The second fault point switch is controlled to perform a closing test;

[0035] It is determined whether the second fault point switch passes the closing test;

[0036] If no, it is judged that the fault of the fault section corresponding to the second fault point switch is permanent, and the tripping state of the second fault point switch is maintained.

[0037] Further, the step of judging whether the second fault point switch is successfully closed for testing further comprises:

[0038] If yes, the current fault is judged as transient.

[0039] A protection circuit comprising an outlet switch, a first level of division switch group, a second level of division switch group and a bypass switch;

[0040] The first level of division switch group is connected in series at one end of the outlet switch, the other end of the outlet switch is connected with a bus power supply end, the second level of division switch group is connected in parallel between each first level of division switch in the first level of division switch group, and the bypass switch is connected in parallel between each second level of division switch in the second level of division switch group, and the outlet switch, the first level of division switch group, the second level of division switch group and the bypass switch are further connected with a background system.

[0041] A circuit fault processing system applied to a protection circuit, wherein the protection circuit is provided with a plurality of detection areas, each detection area is provided with a plurality of detection sections, and each detection section is provided with a waveform acquisition device, the waveform acquisition device is connected with a background system, and the system comprises:

[0042] A judging unit for judging whether a fault occurs in the detection area;

[0043] An obtaining unit for, if yes, obtaining a current waveform of the detection area through the waveform acquisition device;

[0044] A marking unit for identifying the detection section with a fault according to the current waveform and marking the detection section as a fault section;

[0045] A processing unit for powering off and recovering the fault section.

[0046] A computer device comprising a memory and a processor, wherein the memory stores a computer program, and the computer program is executed by the processor to make the processor execute the following steps:

[0047] Judging whether a fault occurs in the detection area;

[0048] If yes, obtaining a current waveform of the detection area through the waveform acquisition device;

[0049] Identifying the detection section with a fault according to the current waveform and marking the detection section as a fault section;

[0050] Power recovery is performed on the fault section.

[0051] A computer readable medium stores a computer program, which, when executed by a processor, causes the processor to perform the following steps:

[0052] Determine whether a fault occurs in the detection area;

[0053] If yes, the current waveform of the detection area is obtained by the waveform acquisition device;

[0054] According to the current waveform, the detection section that has a fault is identified and recorded as a fault section;

[0055] Power recovery is performed on the fault section.

[0056] The circuit fault processing method, protection circuit, system, computer device and medium described above divide the protection circuit into multiple detection areas, determine the detection section that has a fault in the detection area according to the waveform information of the detection area, and perform power recovery on the detection section, thereby realizing power recovery without stopping power supply to the entire protection circuit, reducing the impact on the remaining areas in the protection circuit, solving the problem that the existing conventional on-site reclosing type feeder automation system removes the fault by sequential reclosing logic when a fault occurs in a line, causing non-fault sections to have short-term or long-term power outage, causing economic and social losses, and reducing economic and social losses of power users. BRIEF DESCRIPTION OF DRAWINGS

[0057] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments or prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creative labor.

[0058] Among them:

[0059] Figure 1 It is a flowchart of the circuit fault processing method in an embodiment;

[0060] Figure 2 It is a structural schematic diagram of the circuit fault processing system in an embodiment;

[0061] Figure 3 It is a structural block diagram of the computer device in an embodiment;

[0062] Figure 4 It is a circuit schematic diagram of the protection circuit in an embodiment;

[0063] Figure 5 FIG. 1 is a circuit schematic diagram of a protection circuit according to an embodiment of the present application. DETAILED DESCRIPTION

[0064] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0065] Reference Figure 1 A circuit fault processing method is applied to a protection circuit, the protection circuit is provided with a plurality of detection areas, each detection area is provided with a plurality of detection sections, each detection section is provided with a waveform acquisition device, the waveform acquisition device is connected with a background system, and the method comprises the following steps.

[0066] S1, judging whether a fault occurs in the detection area;

[0067] As described in the above step S1, the protection circuit can include a plurality of detection areas, and the background system judges whether a circuit fault occurs in the detection areas of the protection circuit, which is specifically that the background system judges whether a protective trip occurs in a sectional switch in the detection areas, and if so, it is judged that a fault occurs in the detection area corresponding to the sectional switch.

[0068] In another application scenario, the background system can judge whether a fault occurs in the detection area according to the obtained report information, and the report information can be report information issued by a staff after finding a fault during inspection.

[0069] In another application scenario, the background system can obtain a current parameter of the detection area, and judge whether a fault occurs in the detection area according to a fluctuation of the current parameter.

[0070] In addition, the background system is generally a background server, and in addition, the background system can be a server that provides cloud services, cloud databases, cloud computing, cloud functions, cloud storage, network services, cloud communication, middleware services, domain name services, security services, content distribution networks (CDN), and basic cloud computing services such as big data and artificial intelligence platforms, and the present application does not limit this.

[0071] S2, if so, obtaining a current waveform of the detection area through the waveform acquisition device;

[0072] As described in the above step S2, after the background system locates the detection area with fault, the current waveform of the detection area is acquired by the waveform acquisition device and sent to the background system, so that the function of judging the fault section in the detection area according to the current waveform is realized by the calculation of the current waveform by the background system.

[0073] S3, identifying the detection section with fault according to the current waveform, and recording as a fault section.

[0074] As described in the above step S3, the background system calculates according to the current waveform, so that the detection section with fault in the plurality of detection sections in the detection area is located according to the amplitude variation of the current waveform, and the detection section with fault is recorded as the fault section.

[0075] S4, power-off recovery of the fault section.

[0076] As described in the above step S4, the background system performs power-off recovery on the fault section with fault, so as to realize the function of not affecting the power supply of other areas when power-off recovery is performed.

[0077] The embodiment realizes the power-off recovery of the detection section with fault after locating the detection section with fault in the detection area according to the waveform information of the detection area by dividing the protection circuit into a plurality of detection areas, without the need to perform power-off treatment on the whole protection circuit, reduces the influence on the remaining areas in the protection circuit, solves the problem that the existing conventional on-site reclosing type feeder automation system in the prior art removes the fault by sequential reclosing logic when the line fails, causing short-term or long-term power failure in non-fault sections, causing economic and social losses, and reduces the economic and social losses of electricity users.

[0078] In an embodiment, the current waveform includes an acquisition node and a current amplitude, and the acquisition node corresponds to the waveform acquisition device one by one.

[0079] The step S3 specifically includes:

[0080] S31, judging whether a fault waveform appears in the current waveform according to the current amplitude, if yes, acquiring a first acquisition node where the fault waveform appears, recording as a fault node, acquiring the waveform acquisition device corresponding to the fault node, and recording the detection section corresponding to the waveform acquisition device as a fault section.

[0081] As described in the above embodiment, after the background system acquires the current waveform through the waveform acquisition device, it determines whether a fault waveform appears in the current waveform by judging the waveform amplitude of the current waveform. Specifically, the background system determines whether the peak value of each current waveform in the waveform amplitude is higher than a preset threshold. If yes, the current waveform with the peak value higher than the preset threshold is recorded as the fault waveform. At this time, since the current parameters of each acquisition node in the current waveform are acquired through the waveform acquisition device, and when the peak value is higher than the preset threshold, the peak value must exist corresponding to the acquisition node and the waveform acquisition device. Therefore, the background system records the first acquisition node with the peak value higher than the preset threshold as a fault node, acquires the waveform acquisition device corresponding to the fault node, and records the detection section corresponding to the waveform acquisition device as a fault section.

[0082] In an embodiment, after the step S3, the method further comprises:

[0083] S32, acquiring a historical fault waveform matched with the fault section, the historical fault waveform being matched one-to-one with a historical fault type occurred in the fault section, determining whether the current waveform matches the historical fault waveform, if yes, determining that the fault type of the fault section is consistent with the historical fault type, and recording the fault type as current fault information and then outputting.

[0084] As described in the above embodiment, the background system acquires the historical fault waveform matched with the fault section. The historical fault waveform can exist in multiple types, each corresponding to a different historical fault type. Then, the background system determines whether the current waveform matches the historical fault waveform. If yes, it is determined that the fault type of the fault section is consistent with the historical fault type, and the fault type is recorded as current fault information and then sent to the background system, so that the background system identifies the fault type occurred in the fault section.

[0085] Reference Figure 4 In an embodiment, the protection circuit comprises a first protection section 100, an outlet switch 200, and a first section switch 300. The outlet switch 200 and the first section switch 300 are both arranged in the first protection section 100. The outlet switch 200 is connected in series on the protection circuit and connected to the background system. The first section switch 300 is arranged on the protection circuit at the output end of the outlet switch 200. The first section switch 300 is also arranged in the detection section in the first protection section 100 and connected to the background system.

[0086] The step S4 specifically comprises:

[0087] S41, judging whether the fault section is located in the first protection section 100, if yes, obtaining the first section switch 300 matched with the fault section and recording as the first fault point switch, recording the remaining first section switches 300 connected between the first fault point switch and the outlet switch 200 as the connection point switch, at this time, the first fault point switch is in the tripping state, controlling the outlet switch 200 to perform the overstep tripping and controlling the connection point switch to maintain the closed state, controlling the outlet switch 200 and the first fault point switch to perform the closing test, and judging whether the first fault point switch is successful in the closing test, if not, the outlet switch 200 and the first section switch 300 are tripped and it is judged that the current fault is the permanent fault, controlling the first fault point switch to be locked in the tripping state and then controlling the outlet switch 200 to be closed, thereby realizing the function of isolating the fault.

[0088] As described in the above embodiment, the protection circuit is provided with a plurality of protection sections, including the first protection section 100, the first protection section 100 further includes a plurality of detection sections, the first section switch 300 is arranged in the detection section, and the outlet switch 200 is connected in series on the protection circuit and connected with the background system, the first section switch 300 is connected in parallel on the protection circuit at the output end of the outlet switch 200;

[0089] If the background system judges that the fault section is in the first protection section 100, the background system will record the first section switch 300 matched with the fault section as the first fault point switch, and record the remaining first section switches 300 connected between the first fault point switch and the outlet switch 200 in the protection circuit as the connection point switch. At this time, since a fault has occurred in the fault section, the first fault point switch must be in the tripping state. When the first fault point switch changes to the tripping state, the background system controls the outlet switch 200 to perform protective tripping across the connection point switch. At this time, since the outlet switch 200 and the first fault point switch are both in the tripping state, the opening and closing states of the remaining connection point switches and other first section switches 300 in the protection circuit will not be affected. Then the background system controls the outlet switch 200 to close, thereby supplying power to the first fault point switch. At this time, the first fault point switch switches to the closed state after obtaining power, thereby performing the closed test. At this time, the background system judges whether the first fault point switch trips again after switching to the closed state. If yes, the connection point switch and the outlet switch 200 are directly connected to the fault point and are therefore all switched to the tripping state. At the same time, the background system judges that the current fault is a permanent fault. Then, after the background system controls the first fault point switch to be locked in the tripping state and controls the outlet switch 200 to close, the other first section switches 300 in the first protection section 100 are automatically closed after obtaining power. All the switches in the protection circuit are in the closed state except the first fault point switch which is locked in the tripping state, thereby realizing the function of isolating faults.

[0090] In addition, the first section switch 300 and the outlet switch 200 can also realize automatic closing by setting a fixed closing time. For example, the closing time of the outlet switch 200 is set to 0.4S, and the closing time of the first section switch 300 is set to 1S.

[0091] If a fault occurs in the fault section, the first fault point switch is switched to the tripping state 1S and then the closing test is performed, and the outlet switch 200 is tripped by the connection point switch 0.6S, so that the closing is performed in advance of the closing test and power is supplied to the first fault point switch, and the first fault point switch is switched to the closing state 1S, so that the closing test is performed, and the background system determines whether the first fault point switch is tripped again after being switched to the closing state. If yes, the connection point switch and the outlet switch 200 are directly connected to the fault point, so that all switches are switched to the tripping state, and then the background system controls the first fault point switch to be locked in the tripping state, and the connection point switch is closed again 0.6S, and the first section switch 300 in the first protection section 100 is automatically closed 1S, so that all switches in the first protection section 100 are in the closing state except the first fault point switch which is locked in the tripping state, thereby realizing the function of isolating the fault.

[0092] In an embodiment, after the step of controlling the outlet switch 200 and the first fault point switch to perform the closing test and determining whether the first fault point switch succeeds in the closing test, the method further comprises:

[0093] S42, if yes, controlling the outlet switch 200 and the first fault point switch to maintain the closing state, and determining that the current fault is a transient fault.

[0094] As described in the above embodiment, if the background system determines that the first fault point switch maintains the closing state and is not tripped again after the closing test, the background system determines that the closing test succeeds, and the fault of the protection circuit is a transient fault, so that the outlet switch 200 and the first fault point switch are in the closing state, thereby restoring the power supply of the power supply circuit.

[0095] Reference Figure 4 In an embodiment, the protection circuit further comprises a second protection section 400 and a second section switch 500. The second protection section 400 is arranged on the side of the first protection section 100 away from the outlet switch 200, the second section switch 500 is arranged in the second protection section 400, the second section switch 500 is arranged on the protection circuit at the output end of the outlet switch 200, and the second section switch 500 is arranged in the detection section in the second protection section 400 and connected to the background system.

[0096] Then, step S4 specifically comprises:

[0097] S43, judging whether the fault section is located in the second protection section 400, if yes, obtaining the second sectional switch 500 matched with the fault section and recording as the second fault point switch, at this time, the second fault point switch is in the tripping state, controlling the second fault point switch to perform the closing test, judging whether the second fault point switch performs the closing test successfully, if no, judging that the fault of the fault section corresponding to the second fault point switch is permanent fault, and maintaining the tripping state of the second fault point switch.

[0098] As described in the above embodiment, the protection circuit is provided with a plurality of protection sections, including the second protection section 400, the second protection section 400 is arranged on the side of the first protection section 100 away from the outlet switch 200, the second protection section 400 internally contains a plurality of detection sections, the second sectional switch 500 is arranged in the detection section and connected with the background system, and the second sectional switch 500 is connected in parallel on the protection circuit of the output end of the outlet switch 200;

[0099] When the background system judges that the fault section appears, the background system judges whether the fault section is located in the second protection section 400, if yes, the background system obtains the second sectional switch 500 matched with the fault section and records as the second fault point switch, at this time, since the fault has occurred in the fault section, the second fault point switch must be in the tripping state, when the second fault point switch changes to the tripping state, the background system controls the second sectional switch 500 to perform the closing, thereby performing the closing test, at this time, the background system judges whether the second fault point switch trips again after switching to the closing state, if yes, the background system judges that the current fault is permanent fault, and locks the second fault point switch in the tripping state, thereby realizing the function of isolating the fault.

[0100] In addition, the second sectional switch 500 can also realize automatic closing by setting a fixed closing time, for example, the closing time set by the first sectional switch 300 is 1S.

[0101] When the second fault point switch automatically performs the closing after changing to the tripping state for 1S due to the fault, thereby performing the closing test, at this time, the background system judges whether the second fault point switch trips again after switching to the closing state, if yes, the background system judges that the current fault is permanent fault, and locks the second fault point switch in the tripping state, thereby realizing the function of isolating the fault.

[0102] In an embodiment, after the step of judging whether the second fault point switch performs the closing test successfully, the method further includes:

[0103] S44, if yes, the current fault is determined as a transient fault.

[0104] As described in the above embodiment, when the background system acquires that the second fault point switch succeeds in the closing test, the background system determines that the fault occurring on the protection circuit is a transient fault, and no other operation is required. At this time, the protection circuit does not have other faults and operates normally.

[0105] Reference Figure 5 A protection circuit includes an outlet switch 200, a first-level boundary switch group 2, a second-level boundary switch group 3, and a bypass switch 4.

[0106] The first-level boundary switch group 2 is connected in series at one end of the outlet switch 200, and the other end of the outlet switch 200 is connected to a bus power supply end. The second-level boundary switch group 3 is connected in parallel between each first-level boundary switch 5 in the first-level boundary switch group 1. The bypass switch 4 is connected in parallel between each second-level boundary switch 6 in the second-level boundary switch group 3. The outlet switch 200, the first-level boundary switch group 2, the second-level boundary switch group 3, and the bypass switch 4 are further connected to a background system.

[0107] As described in the above embodiment, the outlet switch 200, the first-level boundary switch 5, the second-level boundary switch 6, and the bypass switch 4 are used to switch the closing state and the tripping state through the control of the background system, thereby executing the circuit fault processing method described above.

[0108] For example, the second segment switch 500 includes the first-level boundary switch 5, the second-level boundary switch 6, and the bypass switch 4. The protection circuit includes multiple protection segments, including a second protection segment 400. The second protection segment 400 is arranged on the side away from the outlet switch 200 of the first protection segment 100. The second protection segment 400 includes multiple detection segments. The first-level boundary switch 5, the second-level boundary switch 6, and the bypass switch 4 are arranged in the detection segments and connected to the background system.

[0109] If the background system judges that the fault section is located in the second protection section 400, the background system acquires the bypass switch 4 matched with the fault section and records it as a second fault point switch. At this time, since a fault has occurred in the fault section, the second fault point switch must be in the tripping state. When the second fault point switch changes to the tripping state, the background system controls the first-level boundary switch 5, the second-level boundary switch 6 and the bypass switch 4 to close, thereby performing the closing test. At this time, the background system judges whether the second fault point switch trips again after switching to the closing state. If yes, the background system judges that the current fault is a permanent fault and locks the second fault point switch in the tripping state, thereby realizing the function of isolating the fault.

[0110] It can be understood that the second fault point switch can also be the first-level boundary switch 5 or the second-level boundary switch 6. The selection of the second fault point switch is only bound to the switch arranged inside the fault section.

[0111] Reference Figure 2 A circuit fault processing system applied to a protection circuit, wherein the protection circuit is provided with a plurality of detection areas, each of the detection areas is provided with a plurality of detection sections, each of the detection sections is provided with a waveform acquisition device, the waveform acquisition device is connected with a background system, and the system comprises:

[0112] A judging unit 10 for judging whether a fault occurs in the detection area;

[0113] An acquiring unit 20 for judging, if yes, acquiring a current waveform of the detection area through the waveform acquisition device;

[0114] A marking unit 30 for identifying the detection section in which the fault occurs according to the current waveform and recording it as a fault section;

[0115] A processing unit 40 for powering off and recovering the fault section.

[0116] The above units are used to execute the circuit fault processing system, and will not be introduced one by one here.

[0117] Figure 3 An internal structure diagram of a computer device in an embodiment is shown. The computer device can be specifically a server, which includes but is not limited to a high-performance computer and a high-performance computer cluster. As shown in FIG. 1, the computer device includes a central processing unit (CPU), a memory, a bus and a communication interface. Figure 3As shown, the computer device includes a processor, a memory and a network interface connected through a system bus. Among them, the memory includes a non-volatile storage medium and an internal memory. The non-volatile storage medium of the computer device stores an operating system, and can also store a computer program, which, when executed by the processor, can enable the processor to implement the employee state judgment method. The internal memory can also store a computer program, which, when executed by the processor, can enable the processor to execute the circuit fault processing method.

[0118] In one embodiment, the customer behavior identification method provided by the application can be realized in the form of a computer program, which can run on a computer device as shown. Figure 3 The memory of the computer device can store various program templates that constitute the mail automatic classification and aggregation device. For example: judgment unit 10, acquisition unit 20, marking unit 30 and processing unit 40.

[0119] A computer device includes a memory, a processor, and a computer program stored in the memory and executable on the processor, and the processor executes the computer program to implement the following steps:

[0120] Determine whether the detection area is faulty; if so, acquire the current waveform of the detection area through the waveform acquisition device; identify the detection section that fails according to the current waveform, and mark it as a fault section; and power off the fault section for recovery.

[0121] As can be seen from the above embodiments, the greatest benefit of the application is that by dividing the protection circuit into multiple detection areas, locating the detection section that fails in the detection area according to the waveform information of the detection area, and then powering off the detection section for recovery, the need for power-off treatment of the entire protection circuit is eliminated, the impact on the remaining areas in the protection circuit is reduced, and the problem of existing conventional on-site reclosing type feeder automation systems in the prior art, which removes faults by sequential reclosing logic when a fault occurs, resulting in short-term or long-term power outage in non-fault sections, causing economic and social losses, is solved, and the economic and social losses of electricity users are reduced.

[0122] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by a computer program instructing relevant hardware, and the program can be stored in a non-volatile computer readable storage medium. When the program is executed, it can include the processes of the above-mentioned embodiment methods. Any reference to memory, storage, database or other medium used in the embodiments provided by the present application can include non-volatile and / or volatile memory. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. Volatile memory can include random access memory (RAM) or external cache memory. As an illustration but not limitation, RAM is available in various forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), and double data rate, etc.

[0123] Any combination of the technical features of the above embodiments can be made. In order to make the description simple, all possible combinations of the technical features in the above embodiments are not described, however, as long as the combination of the technical features does not exist, it should be considered as the scope of the present application.

[0124] The above embodiments only express several implementation manners of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the patent of the present application. It should be pointed out that for those skilled in the art, without departing from the concept of the present application, some modifications and improvements can be made, which are all within the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A circuit fault handling method, characterized by, The application is applied to a protection circuit, the protection circuit is provided with a plurality of detection areas, a plurality of detection sections are arranged in the detection areas, waveform acquisition devices are arranged in the detection sections, the waveform acquisition devices are connected with a background system, and the method comprises the following steps: It is judged whether the detection area fails; If yes, the current waveform of the detection area is acquired through the waveform acquisition device; The detection section with the failure is identified according to the current waveform and is recorded as a fault section; The fault section is powered off and recovered, the protection circuit comprises a first protection section, an outlet switch and a first sectional switch, the outlet switch and the first sectional switch are arranged in the first protection section, the outlet switch is connected in series on the protection circuit and is connected with the background system, the first sectional switch is connected in parallel on the protection circuit at the output end of the outlet switch, and the first sectional switch is further arranged in the detection section in the first protection section and is connected with the background system; the step of powering off and recovering the fault section comprises the following steps: It is judged whether the fault section is located in the first protection section; If yes, the first sectional switch matched with the fault section is acquired and is recorded as a first fault point switch; The remaining first sectional switches connected between the first fault point switch and the outlet switch are recorded as connection point switches, and the first fault point switch is in a tripping state at this time; The outlet switch is controlled to trip over the level and the connection point switches are controlled to maintain a closed state; The outlet switch and the first fault point switch are controlled to perform a closed test, and it is judged whether the first fault point switch is successfully tested in the closed state; If no, the outlet switch and the first sectional switch are tripped, and it is judged that the current fault is a permanent fault; After the first fault point switch is locked in the tripping state, the outlet switch is controlled to be closed, so that the function of isolating the fault is realized.

2. The circuit fault handling method of claim 1, wherein, The current waveform comprises acquisition nodes and current amplitudes, and the acquisition nodes correspond to the waveform acquisition devices one by one; The step of identifying the detection section with the failure according to the current waveform and recording the detection section as a fault section comprises the following steps: It is judged whether a fault waveform appears in the current waveform according to the current amplitudes; If yes, the first acquisition node with the fault waveform is acquired and is recorded as a fault node, The waveform acquisition device corresponding to the fault node is acquired, and the detection section corresponding to the waveform acquisition device is recorded as a fault section.

3. The circuit fault handling method of claim 1, wherein, After the step of identifying the detection section with the failure according to the current waveform and recording the detection section as a fault section, the following steps are further included: A historical fault waveform matched with the fault section is acquired, the historical fault waveform is matched with a historical fault type of the detection section one by one; It is judged whether the current waveform matches the historical fault waveform; If yes, it is judged that the fault type of the fault section is consistent with the historical fault type, the fault type is recorded as current fault information and is output.

4. The circuit fault handling method of claim 1, wherein, The step of controlling the outlet switch and the first fault point switch to perform closing test and determining whether the first fault point switch passes the closing test further comprises: If yes, the outlet switch and the first fault point switch are controlled to maintain the closing state, and the current fault is determined to be a transient fault.

5. The circuit fault handling method of claim 1, wherein, The protection circuit further comprises a second protection section and a second sectional switch, the second protection section is arranged on the side of the first protection section away from the outlet switch, the second sectional switch is arranged in the second protection section, the second sectional switch is connected in parallel to the protection circuit at the output end of the outlet switch, and the second sectional switch is further arranged in the detection section in the second protection section and connected to the background system; The step of performing power-off recovery on the fault section specifically comprises: Determining whether the fault section is located in the second protection section; If yes, the second sectional switch matched with the fault section is obtained and recorded as a second fault point switch, and the second fault point switch is in the tripped state at this time; The second fault point switch is controlled to perform closing test; Determining whether the second fault point switch passes the closing test; If no, the fault section corresponding to the second fault point switch is determined to be a permanent fault, and the tripped state of the second fault point switch is maintained.

6. A protection circuit, characterized by The circuit fault processing method according to any one of claims 1 to 5 comprises an outlet switch, a first sectional switch group, a second sectional switch group, and a bypass switch; The first sectional switch group is connected in series at one end of the outlet switch, the other end of the outlet switch is connected to a bus power supply end, the second sectional switch group is connected in parallel between each first sectional switch in the first sectional switch group, the bypass switch is connected in parallel between each second sectional switch in the second sectional switch group, and the outlet switch, the first sectional switch group, the second sectional switch group, and the bypass switch are further connected to a background system.

7. A circuit fault handling system characterized by, The system is applied to a protection circuit, the protection circuit is provided with a plurality of detection regions, each detection region is provided with a plurality of detection sections, each detection section is provided with a waveform acquisition device, the waveform acquisition device is connected to a background system, and the system comprises: A determination unit for determining whether a fault occurs in the detection region; An acquisition unit for, if yes, acquiring a current waveform of the detection region through the waveform acquisition device; A marking unit for identifying the detection section that has a fault according to the current waveform and recording the detection section as a fault section. The processing unit is used for power recovery of the fault section, the protection circuit comprises a first protection section, an outlet switch and a first sectional switch, the outlet switch and the first sectional switch are arranged in the first protection section, the outlet switch is connected in series on the protection circuit and connected with the background system, the first sectional switch is connected in parallel on the protection circuit at the outlet switch output end, the first sectional switch is also arranged in the detection section in the first protection section and connected with the background system; the power recovery of the fault section specifically comprises: judging whether the fault section is located in the first protection section; if yes, the first sectional switch matched with the fault section is obtained and recorded as a first fault point switch; the rest of the first sectional switches connected between the first fault point switch and the outlet switch are recorded as connection point switches, at this time the first fault point switch is in tripping state; the outlet switch is controlled to perform overstep tripping while the connection point switches are controlled to maintain closed state; the outlet switch and the first fault point switch are controlled to perform closed test, and whether the first fault point switch is closed test successful is judged; if no, the outlet switch and the first sectional switch are tripped and it is judged that the current fault is permanent fault; after the first fault point switch is controlled to be locked in tripping state, the outlet switch is controlled to be closed, thereby realizing the function of isolating fault.

8. A computer device, comprising: The computer program is stored in the memory and executable on the processor, and when the processor executes the computer program, the circuit fault processing method of any one of claims 1 to 5 is realized.

9. A computer-readable storage medium storing a computer program, characterized in that, The computer program is executed by the processor to realize the steps of the circuit fault processing method of any one of claims 1 to 5.

Images