CN113777519B - Monitoring method, system, equipment and medium of direct current power supply system - Google Patents
Monitoring method, system, equipment and medium of direct current power supply system Download PDFInfo
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- CN113777519B CN113777519B CN202111014749.8A CN202111014749A CN113777519B CN 113777519 B CN113777519 B CN 113777519B CN 202111014749 A CN202111014749 A CN 202111014749A CN 113777519 B CN113777519 B CN 113777519B
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 151
- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000012423 maintenance Methods 0.000 claims abstract description 17
- 238000005259 measurement Methods 0.000 claims description 29
- 238000004590 computer program Methods 0.000 claims description 11
- 238000012806 monitoring device Methods 0.000 claims description 9
- 238000009413 insulation Methods 0.000 claims description 7
- 238000004891 communication Methods 0.000 claims description 5
- 239000012212 insulator Substances 0.000 claims description 3
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- 238000006073 displacement reaction Methods 0.000 description 2
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/40—Testing power supplies
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Abstract
The invention discloses a monitoring method of a direct current power supply system, which comprises the following steps: the monitoring terminal acquires real-time monitoring information of the power supply terminal to be monitored, and when the real-time monitoring information does not meet preset monitoring conditions, a fault notification is sent to a target terminal of maintenance personnel, so that the operation and maintenance personnel is notified to go to the direct current power supply system with the fault at the first time. And then determining first alarm information based on the real-time monitoring information, determining second alarm information based on the first deflection information and the second deflection information, generating and sending a fault analysis report which can be used for reference to the terminal, so that maintenance can be performed pertinently after an operation and maintenance person arrives at the site, and the solution time of the abnormal problem is effectively shortened by the scheme. In addition, a direct current power supply monitoring system, a device and a storage medium are also provided.
Description
Technical Field
The present invention relates to the field of dc power systems, and in particular, to a method, a system, an apparatus, and a medium for monitoring a dc power system.
Background
When the DC power supply system of the transformer substation runs abnormally, the monitoring equipment can generate corresponding alarms and report the alarms, but only the alarms can be reported to the station control system in the traditional scheme. In this case, the operation and maintenance personnel can find an alarm during inspection to solve the problem on site, and the time is uncontrollable. And after the operation and maintenance personnel arrive at the scene, further analysis is needed for the problem to seek a solution, and then the problem can be solved, so that the problem solving time is increased.
Disclosure of Invention
Based on this, it is necessary to provide a monitoring method, system, apparatus and medium of a dc power supply system that improves the failure resolution efficiency in view of the above-described problems.
The monitoring method of the direct current power supply system is applied to the direct current power supply monitoring system, the direct current power supply monitoring system comprises a power supply end to be monitored, a monitoring end, a comprehensive measurement and control device and a transformer substation background, the monitoring end is connected with the comprehensive measurement and control device through a first dry contact and is connected with the power supply end to be monitored through a second dry contact, and the transformer substation background is connected with the comprehensive measurement and control device and the monitoring end;
the method comprises the following steps:
the monitoring terminal acquires real-time monitoring information of the power supply terminal to be monitored, and when the real-time monitoring information does not meet preset monitoring conditions, a fault notification is sent to a target terminal of maintenance personnel, and first alarm information is determined according to the real-time monitoring information which does not meet the preset monitoring conditions;
when the comprehensive measurement and control device receives first deflection information of the first dry contact and second deflection information of the second dry contact, determining second alarm information according to the first deflection information and the second deflection information, wherein the first alarm information and the second alarm information comprise fault types of the power source end to be monitored and fault levels of the fault types;
and the substation background generates a fault analysis report according to the first alarm information and the second alarm information, and when the target terminal inquires the fault analysis report, the fault analysis report is sent to the target terminal for display.
In one embodiment, the power supply end to be monitored comprises an alternating current inlet unit, a charger, a storage battery pack, a fuse, an insulator, a bus and a feeder;
the real-time monitoring information comprises voltage, current, temperature, internal resistance, whether tripping, phase loss and fusing;
in one embodiment, the fault categories include ac line total fault, bus total fault, charger fault, battery total fault, insulation total fault, fuse fault, feeder trip total fault.
In one embodiment, the first main contact includes a first sub-main contact and a second sub-main contact, the monitoring end includes a first section of direct current monitoring, a second section of direct current monitoring and a main monitoring, the main monitoring establishes communication connection with the first section of direct current monitoring, the second section of direct current monitoring and the transformer substation background, the first section of direct current monitoring and the second section of direct current monitoring are connected with the comprehensive measurement and control device through the first sub-main contact and are connected with the power end to be monitored through the second main contact, and the main monitoring is connected with the comprehensive measurement and control device through the second sub-main contact.
In one embodiment, the fault types include an integrated power supply total fault and a direct current power supply system total fault, wherein the direct current power supply system total fault is a fault confirmed when the first section of direct current monitoring and the second section of direct current monitoring monitor any other fault, and the integrated power supply total fault is a fault confirmed when the monitoring end monitors any other fault.
In one embodiment, the fault analysis report is generated according to the first alarm information and the second alarm information, and the method includes:
and determining target equipment in the power supply end to be monitored according to the first alarm information and the second alarm information with the lowest fault level, and summarizing the real-time monitoring information of the target equipment and the target equipment to generate a fault analysis report.
A computer readable storage medium storing a computer program which, when executed by a processor, causes the processor to perform the steps of:
driving the monitoring terminal to acquire real-time monitoring information of the power terminal to be monitored, and when the real-time monitoring information does not meet preset monitoring conditions, sending a fault notification to a target terminal of maintenance personnel, and determining first alarm information according to the real-time monitoring information which does not meet the preset monitoring conditions;
driving the comprehensive measurement and control device to determine second alarm information according to the first deflection information and the second deflection information when receiving the first deflection information of the first dry contact and the second deflection information of the second dry contact, wherein the first alarm information and the second alarm information comprise the fault class of the power source end to be monitored and the fault class of the fault class;
and driving the substation background to generate a fault analysis report according to the first alarm information and the second alarm information, and sending the fault analysis report to the target terminal for display when the target terminal inquires the fault analysis report.
A direct current power supply system monitoring device comprising a memory and a processor, the memory storing a computer program which, when executed by the processor, causes the processor to perform the steps of:
driving the monitoring terminal to acquire real-time monitoring information of the power terminal to be monitored, and when the real-time monitoring information does not meet preset monitoring conditions, sending a fault notification to a target terminal of maintenance personnel, and determining first alarm information according to the real-time monitoring information which does not meet the preset monitoring conditions;
driving the comprehensive measurement and control device to determine second alarm information according to the first deflection information and the second deflection information when receiving the first deflection information of the first dry contact and the second deflection information of the second dry contact, wherein the first alarm information and the second alarm information comprise the fault class of the power source end to be monitored and the fault class of the fault class;
and driving the substation background to generate a fault analysis report according to the first alarm information and the second alarm information, and sending the fault analysis report to the target terminal for display when the target terminal inquires the fault analysis report.
The invention provides a monitoring method, a system, equipment and a medium of a direct current power supply system, wherein a monitoring end acquires real-time monitoring information of the power supply end to be monitored, and when the real-time monitoring information does not meet preset monitoring conditions, a fault notification is sent to a target terminal of a maintainer, so that the maintainer is notified to go to the direct current power supply system with the fault at the first time. And then determining first alarm information based on the real-time monitoring information, determining second alarm information based on the first deflection information and the second deflection information, and generating and sending a fault analysis report which can be used for reference to a terminal, so that an operation and maintenance person can pertinently maintain the operation and maintenance person after arriving at the site, and the solution time of the abnormal problem is effectively shortened by the scheme.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Wherein:
FIG. 1 is a schematic diagram of a DC power monitoring system according to a first embodiment of an embodiment;
FIG. 2 is a flow chart of a method for monitoring a DC power supply system according to an embodiment;
FIG. 3 is a schematic diagram of a DC power monitoring system according to a second embodiment of an embodiment;
fig. 4 is a block diagram of a dc power system monitoring device in one embodiment.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1, fig. 1 is a schematic diagram of a dc power monitoring system in a first embodiment, where the dc power monitoring system includes a power source terminal 400 to be monitored, a monitoring terminal 300, an integrated measurement and control device 200, and a substation background 100. The power source end 400 to be monitored is a direct current power source system for providing basic source power for an automation device in a transformer substation. In the system, the monitoring terminal 300 establishes connection with the comprehensive measurement and control device 200 through a first dry contact and establishes connection with the power terminal 400 to be monitored through a second dry contact, wherein the dry contact is an electrical switch, and the connected power terminal 400 to be monitored and the monitoring terminal 300 send alarm information to the comprehensive measurement and control device 200 through a dry contact mode (whether the connection state of the dry contact is changed or not). The substation background 100 is connected with the comprehensive measurement and control device 200 and the monitoring end 300, the comprehensive measurement and control device 200 forwards the received alarm information to the substation background 100, and the monitoring end 300 directly sends the alarm information and other information in a communication mode after analysis.
As shown in fig. 2, fig. 2 is a flow chart of a monitoring method of a dc power system in an embodiment, where the monitoring method of a dc power system is applied to the dc power monitoring system shown in fig. 1, and the steps provided by the monitoring method of a dc power system include:
step 102, the monitoring end obtains real-time monitoring information of the power end to be monitored, and when the real-time monitoring information does not meet preset monitoring conditions, a fault notification is sent to a target terminal of maintenance personnel, and first alarm information is determined according to the real-time monitoring information which does not meet the preset monitoring conditions.
The power supply terminal 400 to be monitored in this embodiment includes an ac inlet unit, a charger, a storage battery pack, a fuse, an insulator, a bus, a feeder, and the like. The real-time monitoring information comprises voltage, current, temperature, internal resistance, whether tripping, phase loss, fusing and the like. For example, the preset monitoring condition may be that the voltage of the battery pack should be greater than 198V, otherwise under-voltage. The first alarm information comprises fault types and fault grades of the fault types, the fault types are classified into an alternating current inlet line total fault, a bus total fault, a charger fault, a storage battery total fault, an insulation total fault, a fuse fault and a feeder trip total fault based on equipment sources with faults, the fault types can be further classified into a single-section storage battery under-voltage, a single-section storage battery over-voltage and the like based on reasons, and the fault types are classified into a 1 st storage battery fault, a 2 nd storage battery fault and the like based on positions of specific components. The failure levels are classified into n levels based on the membership of each failure category, with lower levels representing finer classifications.
In addition, when the step is executed, when the real-time monitoring information does not meet the preset monitoring conditions, a fault notification is sent to the target terminal of the maintainer, so that the purpose of timely notifying the maintainer of the previous rush repair can be achieved.
104, when the comprehensive measurement and control device receives the first deflection information of the first dry contact and the second deflection information of the second dry contact, determining second alarm information according to the first deflection information and the second deflection information.
When the monitoring terminal 300 monitors that the power supply terminal 400 to be monitored has a fault, a trunk node with the fault generates first displacement information and second displacement information (the first trunk node and the second trunk node are changed from open to closed or from closed to open). Similar to the first alarm information, the second alarm information is determined based on the dry contact information of the one path of dry contact where the fault exists, and the second alarm information also includes a fault class and a fault level of the fault class.
And 106, generating a fault analysis report by the substation background according to the first alarm information and the second alarm information, and sending the fault analysis report to the target terminal for display when the target terminal inquires the fault analysis report.
Specifically, the target device in the power supply end 400 to be monitored is determined according to the first alarm information and the second alarm information with the lowest fault level, and real-time monitoring information of the target device and the target device is summarized to generate a fault analysis report. For example, when the fault is that the 50 th section of a group of single batteries has an undervoltage, the sent first alarm information can include the 50 th battery undervoltage, the battery single undervoltage alarm, the total fault of the storage battery and the fault of the direct current system. And the second alarm information sent up is the total fault of the storage battery and the direct current system fault. The 50 th battery under-voltage is the alarm information with the lowest fault level, and represents the most source fault reason, and the output is carried out at the moment: the storage battery pack, the 50 th storage battery under-voltage, is used as a fault analysis report and is displayed when a target terminal of a maintainer inquires, so that the maintainer can carry out rush repair at the highest speed when arriving at the site.
According to the monitoring method of the direct current power supply system, the monitoring end obtains the real-time monitoring information of the power supply end to be monitored, and when the real-time monitoring information does not meet the preset monitoring conditions, the fault notification is sent to the target terminal of the maintainer, so that the maintainer is notified to go to the direct current power supply system with the fault at the first time. And then determining first alarm information based on the real-time monitoring information, determining second alarm information based on the first deflection information and the second deflection information, generating and sending a fault analysis report which can be used for reference to the terminal, so that maintenance can be performed pertinently after an operation and maintenance person arrives at the site, and the solution time of the abnormal problem is effectively shortened by the scheme.
In one embodiment, referring to fig. 3, fig. 3 is a schematic diagram of a dc power monitoring system according to a second embodiment, where a monitoring terminal 300 includes a dc monitor 320, a dc monitor 330, and a main monitor 310, and a first dry contact includes a first sub-dry contact and a second sub-dry contact. The master monitor 310 establishes a communication connection with the first dc monitor 320 and the second dc monitor 330, and establishes a communication connection with the substation background 100. The first section of direct current monitoring 320 and the second section of direct current monitoring 330 are connected with the comprehensive measurement and control device 200 through a first sub-dry joint and are connected with the power end 400 to be monitored through a second sub-dry joint, and the total monitoring 310 is connected with the comprehensive measurement and control device 200 through a second sub-dry joint. And based on the first sub-dry contact, the total faults of the direct current power supply system are sent to the comprehensive measurement and control device 200, and based on the second sub-dry contact, the total faults of the integrated power supply are sent to the comprehensive measurement and control device 200. The total fault of the dc power supply system is a fault confirmed when the first dc monitor 320 and the second dc monitor 330 monitor any other fault, and the total fault of the integrated power supply is a fault confirmed when the monitor 300 monitors any other fault.
In this embodiment, the first alert information and the second alert information may be determined based on the following conditions: 1. general fault of integrated power supply: 2-9 should fail, the alarm will be sent. 2. Direct current power supply system total fault: the failure in 3-8 pieces of equipment can be alarmed, but one section of equipment is monitored by one section of monitoring equipment, and the second section of equipment is monitored by two sections of monitoring equipment. 3. Total fault of ac line of dc system: based on the tripping of the AC input of the DC system, the undervoltage/overvoltage of the AC input of the DC system, the open-phase of the AC input of the DC system and the fault determination of the AC inlet wire control unit. 4. Direct current bus total fault: based on the undervoltage/overvoltage of the direct current bus and the overlarge voltage difference of the positive bus and the negative bus, the overlarge alternating current series-in voltage of the direct current bus and the overlarge capacitance of the direct current bus to the ground. 5. Direct current system charger failure: based on the input undervoltage/overvoltage/open-phase of the No. 1-No. 16 modules of the charger, the overvoltage/undervoltage/overload/overtemperature is output; 1-16 module protection; and determining fan faults of the No. 1-16 modules. 6. Direct current system battery total fault: overvoltage/undervoltage/excessive internal resistance/excessive temperature based on 1 st section to 104 th section of the battery; tripping of the output switch of the storage battery; the battery output undervoltage/overvoltage/overcurrent determination. 7. Total fault of dc system insulation: based on the determination of positive grounding/positive insulation reduction to ground of the DC bus, negative grounding/negative insulation reduction to ground of the DC bus, and 1-128 paths of feeder grounding/insulation reduction. 8. Direct current system fuse fault: fusing the positive electrode/negative electrode based on the output of the charger; and the output of the storage battery fuses the positive electrode/negative electrode. 9. Total system feeder trip fault: based on system 1-128 feeder trips or just total fault determination.
Fig. 4 shows an internal structural diagram of a dc power system monitoring device in one embodiment. As shown in fig. 4, the dc power system monitoring device includes a processor, a memory, and a network interface connected by a system bus. The memory includes a nonvolatile storage medium and an internal memory. The non-volatile storage medium of the direct current power supply system monitoring device stores an operating system and also can store a computer program, and when the computer program is executed by a processor, the processor can realize the monitoring method of the direct current power supply system. The internal memory may also store a computer program that, when executed by the processor, causes the processor to perform a method for monitoring the dc power system. It will be appreciated by those skilled in the art that the structure shown in fig. 4 is merely a block diagram of a portion of the structure associated with the present application and is not intended to limit the dc power system monitoring device to which the present application is applied, and that a particular dc power system monitoring device may include more or fewer components than shown, or may combine certain components, or may have a different arrangement of components.
A direct current power supply system monitoring device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, the processor implementing the following steps when executing the computer program: the method comprises the steps that a driving monitoring end obtains real-time monitoring information of a power end to be monitored, when the real-time monitoring information does not meet preset monitoring conditions, a fault notification is sent to a target terminal of maintenance personnel, and first alarm information is determined according to the real-time monitoring information which does not meet the preset monitoring conditions; when the comprehensive measurement and control device is driven to receive the first deflection information of the first dry contact and the second deflection information of the second dry contact, determining second alarm information according to the first deflection information and the second deflection information, wherein the first alarm information and the second alarm information comprise the fault type of the power supply end to be monitored and the fault level of the fault type; and the background of the driving transformer substation generates a fault analysis report according to the first alarm information and the second alarm information, and when the target terminal inquires the fault analysis report, the fault analysis report is sent to the target terminal for display.
In one embodiment, the higher the fault level, the greater the fault range contained in the alarm information, and the drive substation background is further configured to: and determining target equipment in the power supply end to be monitored according to the first alarm information and the second alarm information with the lowest fault level, and summarizing real-time monitoring information of the target equipment and the target equipment to generate a fault analysis report.
A computer readable storage medium storing a computer program which when executed by a processor performs the steps of:
the method comprises the steps that a driving monitoring end obtains real-time monitoring information of a power end to be monitored, when the real-time monitoring information does not meet preset monitoring conditions, a fault notification is sent to a target terminal of maintenance personnel, and first alarm information is determined according to the real-time monitoring information which does not meet the preset monitoring conditions; when the comprehensive measurement and control device is driven to receive the first deflection information of the first dry contact and the second deflection information of the second dry contact, determining second alarm information according to the first deflection information and the second deflection information, wherein the first alarm information and the second alarm information comprise the fault type of the power supply end to be monitored and the fault level of the fault type; and the background of the driving transformer substation generates a fault analysis report according to the first alarm information and the second alarm information, and when the target terminal inquires the fault analysis report, the fault analysis report is sent to the target terminal for display.
In one embodiment, the higher the fault level, the greater the fault range contained in the alarm information, and the drive substation background is further configured to: and determining target equipment in the power supply end to be monitored according to the first alarm information and the second alarm information with the lowest fault level, and summarizing real-time monitoring information of the target equipment and the target equipment to generate a fault analysis report.
It should be noted that the above method, device, apparatus and computer readable storage medium for monitoring a dc power supply system belong to a general inventive concept, and the content in the embodiments of the method, device, apparatus and computer readable storage medium for monitoring a dc power supply system may be mutually applicable.
Those skilled in the art will appreciate that implementing all or part of the above-described methods in accordance with the embodiments may be accomplished by way of a computer program stored in a non-transitory computer-readable storage medium, which when executed, may comprise the steps of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in the various embodiments provided herein may include non-volatile and/or volatile memory. The nonvolatile 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. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), memory bus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), among others.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The foregoing examples represent only a few embodiments of the present application, which are described in more detail and are not thereby to be construed as limiting the scope of the present application. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.
Claims (9)
1. The monitoring method of the direct current power supply system is characterized by being applied to the direct current power supply monitoring system, wherein the direct current power supply monitoring system comprises a power supply end to be monitored, a monitoring end, a comprehensive measurement and control device and a transformer substation background, the monitoring end is connected with the comprehensive measurement and control device through a first dry contact and is connected with the power supply end to be monitored through a second dry contact, and the transformer substation background is connected with the comprehensive measurement and control device and the monitoring end;
the method comprises the following steps:
the monitoring terminal acquires real-time monitoring information of the power supply terminal to be monitored, and when the real-time monitoring information does not meet preset monitoring conditions, a fault notification is sent to a target terminal of maintenance personnel, and first alarm information is determined according to the real-time monitoring information which does not meet the preset monitoring conditions;
when the comprehensive measurement and control device receives first deflection information of the first dry contact and second deflection information of the second dry contact, determining second alarm information according to the first deflection information and the second deflection information, wherein the first alarm information and the second alarm information comprise fault types of the power source end to be monitored and fault levels of the fault types;
and the substation background generates a fault analysis report according to the first alarm information and the second alarm information, and when the target terminal inquires the fault analysis report, the fault analysis report is sent to the target terminal for display.
2. The method of claim 1, wherein the power source terminal to be monitored comprises an ac inlet unit, a charger, a battery pack, a fuse, an insulator, a bus, and a feeder;
the real-time monitoring information comprises voltage, current, temperature, internal resistance, whether tripping, phase loss and fusing.
3. The method of claim 2, wherein the fault categories include ac line total fault, bus total fault, charger fault, battery total fault, insulation total fault, fuse fault, feeder trip total fault.
4. The method of claim 1, wherein the first dry contact comprises a first sub-dry contact and a second sub-dry contact, wherein the monitoring terminal comprises a first segment of direct current monitoring, a second segment of direct current monitoring and a master monitoring, wherein the master monitoring establishes a communication connection with the first segment of direct current monitoring, the second segment of direct current monitoring and the substation background, wherein the first segment of direct current monitoring and the second segment of direct current monitoring are connected with the integrated measurement and control device through the first sub-dry contact and are connected with the power terminal to be monitored through the second dry contact, and wherein the master monitoring is connected with the integrated measurement and control device through the second sub-dry contact.
5. The method of claim 4, wherein the fault categories include an integrated power total fault and a direct current power system total fault, the direct current power system total fault being a fault that is confirmed when the one segment of direct current monitoring and the two segments of direct current monitoring monitor any other fault, the integrated power total fault being a fault that is confirmed when the monitoring end monitors any other fault.
6. The method of claim 1, wherein the higher the fault level the greater the fault range that the alarm information contains, the generating a fault analysis report from the first alarm information and the second alarm information, comprising:
and determining target equipment in the power supply end to be monitored according to the first alarm information and the second alarm information with the lowest fault level, and summarizing the real-time monitoring information of the target equipment and the target equipment to generate a fault analysis report.
7. A direct current power supply monitoring system, characterized in that the direct current power supply monitoring system comprises: the monitoring terminal is connected with the comprehensive measurement and control device through a first dry contact and connected with the power terminal to be monitored through a second dry contact, and the transformer substation background is connected with the comprehensive measurement and control device and the monitoring terminal;
the monitoring terminal is used for acquiring real-time monitoring information of the power supply terminal to be monitored, sending a fault notification to a target terminal of a maintainer when the real-time monitoring information does not meet preset monitoring conditions, and determining first alarm information according to the real-time monitoring information which does not meet the preset monitoring conditions;
the comprehensive measurement and control device is used for determining second alarm information according to the first deflection information and the second deflection information when receiving the first deflection information of the first dry contact and the second deflection information of the second dry contact, wherein the first alarm information and the second alarm information comprise the fault class of the power source end to be monitored and the fault class of the fault class;
the substation background is used for generating a fault analysis report according to the first alarm information and the second alarm information, and sending the fault analysis report to the target terminal for display when the target terminal inquires the fault analysis report.
8. A computer readable storage medium storing a computer program, which when executed by a processor causes the processor to perform the steps of the method according to any one of claims 1 to 6.
9. A direct current power supply system monitoring device comprising a memory and a processor, characterized in that the memory stores a computer program which, when executed by the processor, causes the processor to perform the steps of the method according to any of claims 1 to 6.
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