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CN118826293B - A low-voltage switch trip monitoring system and method for a substation - Google Patents

A low-voltage switch trip monitoring system and method for a substation Download PDF

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Publication number
CN118826293B
CN118826293B CN202411118146.6A CN202411118146A CN118826293B CN 118826293 B CN118826293 B CN 118826293B CN 202411118146 A CN202411118146 A CN 202411118146A CN 118826293 B CN118826293 B CN 118826293B
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China
Prior art keywords
tripping
low
voltage switch
substation
data
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CN202411118146.6A
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Chinese (zh)
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CN118826293A (en
Inventor
高源�
严吉行
野创创
唐红燕
犹洲
李彪
刘广东
艾斌
侯晓宁
韩生云
周琦
李永国
候旭亮
刘成珐
马玉福
冀逸凡
贾斌源
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State Grid Qinghai Electric Power Co Ltd
Haidong Power Supply Co of State Grid Qinghai Electric Power Co Ltd
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State Grid Qinghai Electric Power Co Ltd
Haidong Power Supply Co of State Grid Qinghai Electric Power Co Ltd
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Publication of CN118826293A publication Critical patent/CN118826293A/en
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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
    • H02J13/00036—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving switches, relays or circuit breakers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D21/00—Measuring or testing not otherwise provided for
    • G01D21/02—Measuring two or more variables by means not covered by a single other subclass
    • 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
    • G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
    • G01R31/3277—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00001—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00002—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by monitoring

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)
  • Protection Of Transformers (AREA)

Abstract

本发明属于电力监控技术领域，具体的说是一种台区低压开关跳闸监控系统及其方法，包括数据采集模块、数据处理模块，数据采集模块用于实时采集台区低压开关的运行数据，数据处理模块用于对台区低压开关的运行数据进行跳闸防护系数分析，判断是否需要实施跳闸预防措施；若台区低压开关的跳闸防护系数FT大于预设跳闸防护系数阈值FTY，则判定对应的台区低压开关存在跳闸风险；台区低压开关的跳闸防护系数FT是根据偏离系数PS与台区低压开关运行系数YX两个因素结合得到的，能够兼顾电流、电压以及温度因素，同时也结合台区低压开关运行系数YX的时间变化趋势因素，能够更加准确的判断出台区低压开关是否存在跳闸风险，避免出现误报现象。

The present invention belongs to the field of electric power monitoring technology, specifically, a substation low-voltage switch trip monitoring system and method thereof, comprising a data acquisition module and a data processing module, the data acquisition module is used to collect the operation data of the substation low-voltage switch in real time, and the data processing module is used to perform trip protection coefficient analysis on the operation data of the substation low-voltage switch to determine whether trip prevention measures need to be implemented; if the trip protection coefficient FT of the substation low-voltage switch is greater than a preset trip protection coefficient threshold FTY, it is determined that the corresponding substation low-voltage switch has a trip risk; the trip protection coefficient FT of the substation low-voltage switch is obtained by combining the deviation coefficient PS and the substation low-voltage switch operation coefficient YX, which can take into account current, voltage and temperature factors, and also combines the time change trend factor of the substation low-voltage switch operation coefficient YX, which can more accurately determine whether the substation low-voltage switch has a trip risk to avoid false alarms.

Description

Transformer area low-voltage switch tripping monitoring system and method thereof
Technical Field
The invention belongs to the technical field of power monitoring, and particularly relates to a system and a method for monitoring tripping of a low-voltage switch in a transformer area.
Background
In an electric power system, a low-voltage switch of a station is one of key equipment for power transmission. However, the low voltage switch may trip for various reasons, such as equipment aging, overload, short circuit, etc., which pose a risk to the safe operation of the power network.
The existing monitoring mode of the low-voltage switch of the transformer area is to collect the voltage, current and temperature of the power supply circuit of the transformer area through a sensor, the alarm device is directly triggered to alarm when the data exceeds a preset value at a certain moment, whether the moment is current fluctuation or alarm caused by the voltage fluctuation cannot be intelligently judged according to time variation, a false alarm phenomenon exists, tripping development progress cannot be predicted, range early warning is also carried out, and large damage is easy to cause when accidental tripping occurs.
Therefore, the invention provides a system and a method for monitoring tripping of a low-voltage switch in a transformer area.
Disclosure of Invention
In order to overcome the deficiencies of the prior art, at least one technical problem presented in the background art is solved.
The technical scheme adopted by the invention for solving the technical problems is that the system for monitoring the tripping operation of the low-voltage switch in the transformer area is characterized by comprising a data acquisition module, a data processing module, a tripping operation monitoring module and a tripping operation progress evolution module;
the data acquisition module is used for acquiring the operation data of the low-voltage switch of the transformer area in real time and transmitting the acquired operation data to the data processing module;
The data processing module is used for carrying out trip protection coefficient analysis on the operation data of the low-voltage switch of the transformer area and judging whether trip preventive measures are needed to be implemented or not;
The tripping monitoring module is used for monitoring the tripping process of the low-voltage switch of the transformer area with tripping risk and sending monitoring data to the tripping process evolution module;
the tripping process evolution module is used for inputting the monitoring data acquired by the tripping monitoring module into the evolution model, carrying out the evolution of the tripping development process of the switch, establishing a tripping development coordinate axis of the switch, pre-judging time and nodes, acquiring a tripping damage sweep range and transmitting the tripping damage sweep range to the correction module;
The correction module is used for correcting the tripping damage sweep range obtained through evolution and transmitting the tripping damage sweep range after correction to the power supply center of the corresponding station area;
and the power supply center of the transformer area is used for carrying out early warning on the areas of each part of the transformer area according to the evolution result and the tripping damage wave range so as to ensure that preventive measures are taken before the tripping of the low-voltage switch of the transformer area.
Further, the operation data includes a current value I S, a voltage value US, and a temperature value WS.
Further, the current value I S is measured by a current sensor, the voltage value US is measured by a voltage sensor, and the temperature value WS is measured by a temperature sensor.
Further, the data processing module is used for performing trip protection coefficient analysis on operation data of the low-voltage switch of the transformer area, and specifically comprises the following steps:
Obtaining standard environment operation parameters of the low-voltage switch of the platform area, obtaining a low-voltage switch operation coefficient YX of the platform area according to operation data of the low-voltage switch of the actual platform area through a formula YX= (IS-IE) x a1+ (US-UE) x a2+ (WS-WE) x a3, wherein a1, a2 and a3 are preset scale factors, a1+a2+a3=1, a1> a3> a2, and analyzing a tripping protection coefficient FT of the low-voltage switch of the platform area according to a time change trend of the low-voltage switch operation coefficient YX of the platform area.
Further, according to the time change trend of the operation coefficient YX of the low-voltage switch of the transformer area, the trip protection coefficient FT of the low-voltage switch of the transformer area is analyzed, specifically:
Comparing the running coefficient YX of the low-voltage switch of the platform area at each moment in the period with a preset running coefficient threshold value YB, if the running coefficient YX of the low-voltage switch of the platform area is larger than the preset running coefficient threshold value YB, obtaining a difference value between the running coefficient YX of the low-voltage switch of the platform area and the preset running coefficient threshold value YB, and marking the difference value as a deviation value PL;
And calculating a tripping protection coefficient FT of the low-voltage switch of the station area by using a formula FT=YX×b1+PL×b2, wherein b1 and b2 are coefficient factors.
Further, a graph of the running coefficient YX of the low-voltage switch of the transformer area changing with time is established, specifically:
and in a preset period, setting a plurality of acquisition moments, and connecting the operation coefficients YX of the low-voltage switches of the areas at adjacent moments in a straight line to form a graph of the change of the operation coefficients YX of the low-voltage switches of the areas along with time.
Further, the trip process evolution module is used for inputting monitoring data into an evolution model to perform switch trip development process evolution, and specifically comprises the following steps:
Establishing a neural network model, and calling the development process of tripping of the low-voltage switch of the transformer area and historical monitoring data through the Internet, wherein the historical monitoring data comprise environmental operation parameters in the tripping process, a tripping damage range and emergency measures;
The development process of the tripping of the low-voltage switch of the transformer area and the corresponding historical data are marked as training sets, wherein the historical data are used as input data, the development process of the tripping of the low-voltage switch of the corresponding transformer area is used as output data, the training sets are used for training the neural network model, and the trained neural network model is marked as an evolution model.
Further, the correction module is configured to correct the trip damage sweep range obtained by evolution, specifically:
After the first evolution is finished, screening out the area of which the actual tripping damage sweep range exceeds the evolution tripping damage sweep range, carrying out inversion calculation, comparing the inversion result with the real result monitored by the tripping monitoring module, referring to the similar historical tripping data of the low-voltage switch in the upper region of the Internet, analyzing the cause, and revising the evolution model to evolve again until the actual tripping damage sweep range and the evolution tripping damage sweep range are ended consistently.
Further, if the tripping protection coefficient FT of the low-voltage switch of the transformer area is less than or equal to the preset tripping protection coefficient threshold FTY, judging that the corresponding low-voltage switch of the transformer area has no tripping risk and does not need to be operated.
A method for monitoring tripping of a low-voltage switch in a transformer area comprises the following steps:
Collecting operation data of a low-voltage switch of a transformer area in real time, analyzing trip protection coefficients of the operation data of the low-voltage switch of the transformer area, and judging whether tripping preventive measures are needed to be implemented or not;
If the tripping protection coefficient FT of the low-voltage switch of the station area is larger than the preset tripping protection coefficient threshold FTY, judging that the corresponding low-voltage switch of the station area has tripping risk, and generating a tripping prevention signal;
step two, monitoring the tripping process of the low-voltage switch of the transformer area with tripping risk, inputting monitoring data into an evolution model, evolving the tripping development process of the switch, establishing a tripping development coordinate axis of the switch, and pre-judging time and nodes to obtain the tripping damage sweep range;
Correcting the trip damage sweep range obtained through evolution, and transmitting the corrected trip damage sweep range to a power supply center of a corresponding station area;
And fourthly, the power supply center of the transformer area is used for carrying out early warning on the areas of each part of the transformer area according to the evolution result and the tripping damage wave range so as to ensure that preventive measures are taken before the low-voltage switch of the transformer area trips.
The beneficial effects of the invention are as follows:
1. According to the system and the method for monitoring the tripping of the low-voltage switch in the transformer area, the tripping protection coefficient FT of the low-voltage switch in the transformer area is obtained by combining the deviation coefficient PS and the running coefficient YX of the low-voltage switch in the transformer area, so that the current, the voltage and the temperature factors can be considered, and meanwhile, the time change trend factor of the running coefficient YX of the low-voltage switch in the transformer area is combined, so that whether the tripping risk of the low-voltage switch in the transformer area exists can be judged more accurately, and the false alarm phenomenon is avoided.
2. According to the system and the method for monitoring the tripping of the low-voltage switch in the transformer area, disclosed by the invention, the transformer area low-voltage switch with tripping risk is further monitored, the historical tripping data of the low-voltage switch in the transformer area is combined, an evolution model is built, the tripping development progress of the switch of the low-voltage switch in the transformer area can be judged by inputting the monitored data, the tripping time and nodes are prejudged, the tripping damage sweep range is obtained, and the areas of each part of the transformer area are pre-warned according to the evolution result, so that preventive measures are ensured before the tripping of the low-voltage switch in the transformer area, and the damage caused by accidental tripping of the low-voltage switch in the transformer area is reduced.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a system flow diagram of a low voltage switch trip monitoring system of the present invention;
fig. 2 is a flow chart of a method for monitoring tripping of a low-voltage switch in a transformer area according to the invention.
Detailed Description
The invention is further described in connection with the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
Example 1
As shown in fig. 1 to 2, the system for monitoring the tripping operation of the low-voltage switch in the transformer area according to the embodiment of the invention comprises a data acquisition module, a data processing module, a tripping operation monitoring module, a tripping operation progress evolution module, a correction module and a transformer area power supply center;
The data acquisition module is used for acquiring the operation data of the low-voltage switch of the transformer area in real time and transmitting the acquired operation data to the data processing module;
The data processing module is used for carrying out trip protection coefficient analysis on the operation data of the low-voltage switch of the transformer area and judging whether trip preventive measures are needed to be implemented or not;
The tripping monitoring module is used for monitoring the tripping process of the low-voltage switch of the transformer area with tripping risk and sending monitoring data to the tripping process evolution module;
the tripping process evolution module is used for inputting the monitoring data acquired by the tripping monitoring module into the evolution model, carrying out the evolution of the tripping development process of the switch, establishing a tripping development coordinate axis of the switch, pre-judging time and nodes, acquiring a tripping damage sweep range and transmitting the tripping damage sweep range to the correction module;
The correction module is used for correcting the tripping damage sweep range obtained through evolution and transmitting the tripping damage sweep range after correction to the power supply center of the corresponding station area;
and the power supply center of the transformer area is used for carrying out early warning on the areas of each part of the transformer area according to the evolution result and the tripping damage wave range so as to ensure that preventive measures are taken before the tripping of the low-voltage switch of the transformer area.
The operating data includes a current value I S, a voltage value US, and a temperature value WS.
The current value I S is measured by a current sensor, the voltage value US is measured by a voltage sensor, and the temperature value WS is measured by a temperature sensor.
In one embodiment, by installing a current sensor and a voltage sensor on a low-voltage switch circuit of a transformer area, and installing a temperature sensor inside the low-voltage switch of the transformer area, when the low-voltage switch of the transformer area works normally, the current value I S, the voltage value US and the temperature value WS of the low-voltage switch of the transformer area can be obtained in real time, and the operation data of the low-voltage switch of the transformer area can be detected at any time.
The data processing module is used for carrying out trip protection coefficient analysis on operation data of the low-voltage switch of the transformer area, and specifically comprises the following steps:
Obtaining standard environment operation parameters of the low-voltage switch of the platform area, obtaining a low-voltage switch operation coefficient YX of the platform area according to operation data of the low-voltage switch of the actual platform area through a formula YX= (IS-IE) x a1+ (US-UE) x a2+ (WS-WE) x a3, wherein a1, a2 and a3 are preset scale factors, a1+a2+a3=1, a1> a3> a2, and analyzing a tripping protection coefficient FT of the low-voltage switch of the platform area according to a time change trend of the low-voltage switch operation coefficient YX of the platform area.
Specifically, the standard environmental operation parameters of the low-voltage switch in the transformer area are standard working data provided by manufacturers, the current difference value, the voltage difference value and the temperature difference value are respectively obtained by differentiating the standard environmental operation parameters of the voltage-resisting switch and the actual operation data, the operation coefficient YX of the low-voltage switch in the transformer area can be obtained by combining the corresponding preset proportion coefficient, and the trip protection coefficient FT of the low-voltage switch in the transformer area is analyzed according to the time change trend of the operation coefficient YX of the low-voltage switch in the transformer area.
According to the time change trend of the operation coefficient YX of the low-voltage switch of the transformer area, the tripping protection coefficient FT of the low-voltage switch of the transformer area is analyzed, and specifically:
Comparing the running coefficient YX of the low-voltage switch of the platform area at each moment in the period with a preset running coefficient threshold value YB, if the running coefficient YX of the low-voltage switch of the platform area is larger than the preset running coefficient threshold value YB, obtaining a difference value between the running coefficient YX of the low-voltage switch of the platform area and the preset running coefficient threshold value YB, and marking the difference value as a deviation value PL;
And calculating a tripping protection coefficient FT of the low-voltage switch of the station area by using a formula FT=YX×b1+PL×b2, wherein b1 and b2 are coefficient factors.
It can be understood that the trip protection coefficient FT of the low-voltage switch of the transformer area is obtained by combining the deviation coefficient PS and the operation coefficient YX of the low-voltage switch of the transformer area, so that the current, the voltage and the temperature factors can be considered, and meanwhile, the time change trend factor of the operation coefficient YX of the low-voltage switch of the transformer area is combined, so that whether the trip risk of the low-voltage switch of the transformer area exists can be judged more accurately.
A graph of the running coefficient YX of the low-voltage switch of the station area changing along with time is established, and the graph is specifically as follows:
and in a preset period, setting a plurality of acquisition moments, and connecting the operation coefficients YX of the low-voltage switches of the areas at adjacent moments in a straight line to form a graph of the change of the operation coefficients YX of the low-voltage switches of the areas along with time.
The tripping process evolution module is used for inputting monitoring data into the evolution model to conduct switch tripping development process evolution, and specifically comprises the following steps:
Establishing a neural network model, and calling the development process of tripping of the low-voltage switch of the transformer area and historical monitoring data through the Internet, wherein the historical monitoring data comprise environmental operation parameters in the tripping process, a tripping damage range and emergency measures;
The development process of the tripping of the low-voltage switch of the transformer area and the corresponding historical data are marked as training sets, wherein the historical data are used as input data, the development process of the tripping of the low-voltage switch of the corresponding transformer area is used as output data, the training sets are used for training the neural network model, and the trained neural network model is marked as an evolution model.
The correction module is used for correcting the tripping damage sweep range obtained through evolution, and specifically comprises the following steps:
After the first evolution is finished, screening out the area of which the actual tripping damage sweep range exceeds the evolution tripping damage sweep range, carrying out inversion calculation, comparing the inversion result with the real result monitored by the tripping monitoring module, referring to the similar historical tripping data of the low-voltage switch in the upper region of the Internet, analyzing the cause, and revising the evolution model to evolve again until the actual tripping damage sweep range and the evolution tripping damage sweep range are ended consistently.
In one embodiment of the present invention, in one embodiment,
If the tripping protection coefficient FT of the low-voltage switch of the station area is less than or equal to the preset tripping protection coefficient threshold FTY, judging that the corresponding low-voltage switch of the station area has no tripping risk and does not need to be operated.
Example two
As shown in fig. 2, in comparative example one, another embodiment of the present invention is:
A method for monitoring tripping of a low-voltage switch in a transformer area comprises the following steps:
Collecting operation data of a low-voltage switch of a transformer area in real time, analyzing trip protection coefficients of the operation data of the low-voltage switch of the transformer area, and judging whether tripping preventive measures are needed to be implemented or not;
If the tripping protection coefficient FT of the low-voltage switch of the station area is larger than the preset tripping protection coefficient threshold FTY, judging that the corresponding low-voltage switch of the station area has tripping risk, and generating a tripping prevention signal;
step two, monitoring the tripping process of the low-voltage switch of the transformer area with tripping risk, inputting monitoring data into an evolution model, evolving the tripping development process of the switch, establishing a tripping development coordinate axis of the switch, and pre-judging time and nodes to obtain the tripping damage sweep range;
Correcting the trip damage sweep range obtained through evolution, and transmitting the corrected trip damage sweep range to a power supply center of a corresponding station area;
And fourthly, the power supply center of the transformer area is used for carrying out early warning on the areas of each part of the transformer area according to the evolution result and the tripping damage wave range so as to ensure that preventive measures are taken before the low-voltage switch of the transformer area trips.
When the tripping risk of the low-voltage switch of the transformer area is predicted, the tripping damage wave range can be pre-warned for each local area of the transformer area, so that the operations such as remote switching-off and switching-on are performed on the low-voltage switch in each area in advance, faults are removed in time, and the safe operation of the power network is ensured.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (5)

1.一种台区低压开关跳闸监控系统，其特征在于：包括数据采集模块、数据处理模块、跳闸监测模块以及跳闸进程演化模块；1. A low-voltage switch trip monitoring system for an area, characterized by comprising a data acquisition module, a data processing module, a trip monitoring module and a trip process evolution module; 数据采集模块：用于实时采集台区低压开关的运行数据，并将采集到的运行数据传输至数据处理模块；Data acquisition module: used to collect the operation data of the low-voltage switch in the substation in real time, and transmit the collected operation data to the data processing module; 数据处理模块：用于对台区低压开关的运行数据进行跳闸防护系数分析，判断是否需要实施跳闸预防措施；若台区低压开关的跳闸防护系数FT大于预设跳闸防护系数阈值FTY，则判定对应的台区低压开关存在跳闸风险，生成跳闸预防信号；Data processing module: used to analyze the tripping protection factor of the operation data of the low-voltage switch in the substation area to determine whether tripping prevention measures need to be implemented; if the tripping protection factor FT of the low-voltage switch in the substation area is greater than the preset tripping protection factor threshold FTY, it is determined that the corresponding low-voltage switch in the substation area has a tripping risk and generates a tripping prevention signal; 跳闸监测模块：用于对存在跳闸风险的台区低压开关的跳闸进程进行监测，并将监测数据发送至跳闸进程演化模块；Tripping monitoring module: used to monitor the tripping process of the low-voltage switch in the substation with tripping risk, and send the monitoring data to the tripping process evolution module; 跳闸进程演化模块：用于将跳闸监测模块获取的监测数据输入至演化模型，进行开关跳闸发展进程演化，建立开关跳闸进程发展坐标轴，对时间、节点进行预判，得到跳闸损害波及范围并传输至修正模块；Tripping process evolution module: used to input the monitoring data obtained by the tripping monitoring module into the evolution model, perform the evolution of the switch tripping process, establish the switch tripping process development coordinate axis, predict the time and nodes, obtain the scope of tripping damage and transmit it to the correction module; 修正模块：用于对演化得到的跳闸损害波及范围进行修正，并将修正后的跳闸损害波及范围发送至对应台区电力供应中心；Correction module: used to correct the evolved tripping damage range and send the corrected tripping damage range to the corresponding power supply center; 台区电力供应中心：用于根据演化结果，跳闸损害波及范围对台区各地方区域进行预警，以确保在台区低压开关跳闸前做好预防措施；Substation power supply center: used to issue early warnings to various local areas in the substation according to the evolution results and the scope of tripping damage, so as to ensure that preventive measures are taken before the substation low-voltage switch trips; 所述数据处理模块用于对台区低压开关的运行数据进行跳闸防护系数分析，具体为：The data processing module is used to analyze the tripping protection factor of the operation data of the low-voltage switch in the substation area, specifically: 获取台区低压开关的标准环境运行参数，将标准环境运行参数中对应额定电流值IE、电压值UE、环境温度值WE，根据实际台区低压开关的运行数据，通过公式YX＝(IS-IE)×a1+(US-UE)×a2+(WS-WE)×a3得到台区低压开关运行系数YX，其中a1，a2，a3为预设比例因子，且a1+a2+a3＝1，a1>a3>a2，根据台区低压开关运行系数YX的时间变化趋势对台区低压开关的跳闸防护系数FT进行分析；Obtain the standard environmental operating parameters of the substation low-voltage switch, and use the corresponding rated current value IE, voltage value UE, and ambient temperature value WE in the standard environmental operating parameters, according to the actual operation data of the substation low-voltage switch, to obtain the substation low-voltage switch operation coefficient YX through the formula YX＝(IS-IE)×a1+(US-UE)×a2+(WS-WE)×a3, where a1, a2, and a3 are preset proportional factors, and a1+a2+a3＝1, a1>a3>a2, and analyze the trip protection factor FT of the substation low-voltage switch according to the time change trend of the substation low-voltage switch operation coefficient YX; 根据台区低压开关运行系数YX的时间变化趋势对台区低压开关的跳闸防护系数FT进行分析，具体为：According to the time variation trend of the low-voltage switch operation coefficient YX in the substation, the tripping protection coefficient FT of the low-voltage switch in the substation is analyzed, specifically: 建立台区低压开关运行系数YX随时间变化的曲线图；将周期内每个时刻的台区低压开关运行系数YX与预设运行系数阈值YB比较；若台区低压开关运行系数YX大于预设运行系数阈值YB，则获取台区低压开关运行系数YX与预设运行系数阈值YB之间的差值，并将该差值标记为偏离值PL；Establish a curve chart of the change of the low-voltage switch operation coefficient YX over time; compare the low-voltage switch operation coefficient YX of the substation at each moment in the cycle with the preset operation coefficient threshold YB; if the low-voltage switch operation coefficient YX of the substation is greater than the preset operation coefficient threshold YB, obtain the difference between the low-voltage switch operation coefficient YX of the substation and the preset operation coefficient threshold YB, and mark the difference as the deviation value PL; 将周期内的所有的偏离值PL对时间进行积分并进行求和，得到偏离系数PS；利用公式FT＝YX×b1+PL×b2计算得到台区低压开关的跳闸防护系数FT，其中b1、b2均为系数因子；Integrate all deviation values PL in the cycle with respect to time and sum them to obtain the deviation coefficient PS; use the formula FT = YX × b1 + PL × b2 to calculate the tripping protection coefficient FT of the low-voltage switch in the substation, where b1 and b2 are coefficient factors; 建立台区低压开关运行系数YX随时间变化的曲线图，具体为：Establish a curve chart of the low-voltage switch operation coefficient YX changing with time, specifically: 在预设周期内，设置若干采集时刻，将相邻时刻的台区低压开关运行系数YX进行直线相连，构成台区低压开关运行系数YX随时间变化的曲线图；In a preset period, several collection moments are set, and the operation coefficients YX of the substation low-voltage switches at adjacent moments are connected by straight lines to form a curve graph of the operation coefficients YX of the substation low-voltage switches changing with time; 所述跳闸进程演化模块用于将监测数据输入至演化模型，进行开关跳闸发展进程演化，具体为：The tripping process evolution module is used to input the monitoring data into the evolution model to perform the evolution of the switch tripping development process, specifically: 建立神经网络模型，通过互联网调取台区低压开关已跳闸的发展过程和历史监测数据，所述历史监测数据包括跳闸过程中的环境运行参数，跳闸损坏范围以及应急措施；Establish a neural network model, and retrieve the development process and historical monitoring data of the tripped low-voltage switch in the substation through the Internet. The historical monitoring data includes environmental operating parameters during the tripping process, the scope of tripping damage, and emergency measures; 将台区低压开关跳闸的发展过程以及对应的历史数据标记为训练集，其中历史数据作为输入数据，对应的台区低压开关已跳闸的发展过程作为输出数据，通过训练集对神经网络模型进行训练，将训练后的神经网络模型标记为演化模型；The development process of the low-voltage switch tripping in the substation area and the corresponding historical data are marked as a training set, wherein the historical data is used as input data, and the development process of the corresponding low-voltage switch tripping in the substation area is used as output data. The neural network model is trained through the training set, and the trained neural network model is marked as an evolution model; 所述修正模块用于对演化得到的跳闸损害波及范围进行修正，具体为：The correction module is used to correct the trip damage range obtained by evolution, specifically: 首次演化完成后，筛选出实际跳闸损害波及范围超出演化跳闸损害波及范围的区域，再进行反演推算，利用反演结果与跳闸监测模块监测到的真实结果相比较，参考互联网上台区低压开关跳闸相近历史数据，分析成因，修正演化模型再次演化，直至实际跳闸损害波及范围与演化跳闸损害波及范围一致结束。After the first evolution is completed, the areas where the actual tripping damage range exceeds the evolved tripping damage range are screened out, and then inversion is performed. The inversion results are compared with the actual results monitored by the tripping monitoring module, and the similar historical data of low-voltage switch tripping in the substation on the Internet are referred to. The cause is analyzed, the evolutionary model is corrected and evolved again until the actual tripping damage range is consistent with the evolved tripping damage range. 2.根据权利要求1所述的一种台区低压开关跳闸监控系统，其特征在于：所述运行数据包括电流值IS，电压值US，以及温度值WS。2. A substation low-voltage switch trip monitoring system according to claim 1, characterized in that the operating data includes a current value IS, a voltage value US, and a temperature value WS. 3.根据权利要求2所述的一种台区低压开关跳闸监控系统，其特征在于：所述电流值IS通过电流传感器测得，所述电压值US通过电压传感器测得，所述温度值WS通过温度传感器测得。3. A substation low-voltage switch trip monitoring system according to claim 2, characterized in that: the current value IS is measured by a current sensor, the voltage value US is measured by a voltage sensor, and the temperature value WS is measured by a temperature sensor. 4.根据权利要求1所述的一种台区低压开关跳闸监控系统，其特征在于：若台区低压开关的跳闸防护系数FT≤预设跳闸防护系数阈值FTY，则判定对应的台区低压开关无跳闸风险，无需进行操作。4. A substation low-voltage switch trip monitoring system according to claim 1, characterized in that: if the trip protection factor FT of the substation low-voltage switch is ≤ the preset trip protection factor threshold FTY, it is determined that the corresponding substation low-voltage switch has no trip risk and no operation is required. 5.一种台区低压开关跳闸监控方法，其特征在于：该方法由上述权利要求1-4任一项所述的系统执行，该方法包括以下步骤：5. A method for monitoring the tripping of a low-voltage switch in a substation, characterized in that the method is executed by the system according to any one of claims 1 to 4, and the method comprises the following steps: 步骤一：实时采集台区低压开关的运行数据，对台区低压开关的运行数据进行跳闸防护系数分析，判断是否需要实施跳闸预防措施；Step 1: Collect the operation data of the low-voltage switch in the substation in real time, analyze the tripping protection factor of the operation data of the low-voltage switch in the substation, and determine whether tripping prevention measures need to be implemented; 若台区低压开关的跳闸防护系数FT大于预设跳闸防护系数阈值FTY，则判定对应的台区低压开关存在跳闸风险，生成跳闸预防信号；If the tripping protection factor FT of the low-voltage switch in the substation is greater than the preset tripping protection factor threshold FTY, it is determined that the corresponding low-voltage switch in the substation has a tripping risk, and a tripping prevention signal is generated; 步骤二：对存在跳闸风险的台区低压开关的跳闸进程进行监测，将监测数据输入至演化模型，进行开关跳闸发展进程演化，建立开关跳闸进程发展坐标轴，对时间、节点进行预判，得到跳闸损害波及范围；Step 2: Monitor the tripping process of the low-voltage switch in the substation with tripping risk, input the monitoring data into the evolution model, evolve the switch tripping process, establish the switch tripping process development coordinate axis, predict the time and node, and obtain the scope of tripping damage; 步骤三：对演化得到的跳闸损害波及范围进行修正，并将修正后的跳闸损害波及范围发送至对应台区电力供应中心；Step 3: Correct the evolved tripping damage range, and send the corrected tripping damage range to the corresponding power supply center; 步骤四：台区电力供应中心用于根据演化结果，跳闸损害波及范围对台区各地方区域进行预警，以确保在台区低压开关跳闸前做好预防措施。Step 4: The power supply center of the substation is used to issue early warnings to various local areas in the substation based on the evolution results and the scope of tripping damage to ensure that preventive measures are taken before the substation low-voltage switch trips.
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