CN102937690A - Lightning stroke failure disconnection positioning method based on information interaction - Google Patents
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Abstract
本发明公开了一种基于信息交互的雷击故障断线定位方法，它是在输电线路发生雷击故障后，通过采集分段开关电压数据、分接开关电压数据和智能电表电压数据，并对采集到的电压数据进行判定，再将判定异常的数据输入GIS系统中，结合GIS系统中的线路设备拓扑信息，定位雷击断点的地理位置。该发明实现了对雷击故障的实时监测和地理定位，大大节省了线路维护的时间、人力和成本，同时避免了因工作人员马虎大意、雷击断点从线缆外部无法判定等一切因素导致的安全隐患，有效提高了电力传输的安全性。
The invention discloses a lightning fault disconnection location method based on information interaction. After a lightning fault occurs on a power transmission line, the voltage data of the section switch, the voltage data of the tap switch and the voltage data of the smart meter are collected, and the collected The voltage data is judged, and then the abnormal data is input into the GIS system, combined with the line equipment topology information in the GIS system, the geographical location of the lightning breakpoint is located. The invention realizes the real-time monitoring and geographic positioning of lightning strike faults, which greatly saves the time, manpower and cost of line maintenance, and at the same time avoids safety hazards caused by all factors such as carelessness of the staff and the inability to determine the breakpoint of lightning strikes from the outside of the cable. hidden dangers, effectively improving the safety of power transmission.
Description
技术领域 technical field
本发明提供了一种雷击故障断线定位方法，具体地说是一种基于信息交互的雷击故障断线定位方法。The invention provides a method for locating a lightning fault disconnection, in particular a method for locating a lightning fault disconnection based on information interaction.
背景技术 Background technique
目前，国内部分城市供电企业启动了智能配电网建设，在建设配电自动化系统的同时，建设了信息交互总线，实现配电自动化、调度自动化EMS、生产管理PMS、95598客户服务、营销管理、用电采集等相关业务系统的实时与非实时、控制与管理的信息集成。At present, some domestic urban power supply enterprises have started the construction of intelligent distribution network. While building the distribution automation system, they have built an information interaction bus to realize distribution automation, scheduling automation EMS, production management PMS, 95598 customer service, marketing management, Information integration of real-time and non-real-time, control and management of power collection and other related business systems.
近年来随着线路绝缘化率的不断提升，架空绝缘线因雷击造成断线的事故不断增加，因绝缘线有绝缘层被覆，当雷电过电压引起绝缘子闪络并击穿导线绝缘层时，被击穿的绝缘层呈针孔状，接续的工频短路电流电弧受周围绝缘层的阻隔，不能在其表面滑移，电荷集中在击穿点放电，弧根只能在绝缘击穿点燃烧，在断路器动作之前的极短时间内整齐地烧断导线。当导线铝芯烧断，外层绝缘层未断，还有可能产生尽管断线还继续送电的情况，成为电力企业生产中的重大安全隐患，因而，对于雷击故障断线点的及时发现和抢修十分必要。In recent years, with the continuous improvement of the insulation rate of lines, the number of disconnection accidents caused by lightning strikes on overhead insulated wires has continued to increase. Because the insulated wires are covered with insulating layers, when the lightning overvoltage causes the insulator to flashover and break down the wire insulation layer, it is The punctured insulation layer is pinhole-shaped, and the continuous power frequency short-circuit current arc is blocked by the surrounding insulation layer and cannot slip on its surface. The charge is concentrated at the breakdown point and the arc root can only burn at the insulation breakdown point. Neatly blows the wires in a very short time before the circuit breaker trips. When the aluminum core of the conductor is blown and the outer insulating layer is not broken, it may still continue to transmit power despite the disconnection, which becomes a major safety hazard in the production of electric power enterprises. Emergency repair is very necessary.
针对上述的问题，并结合智能配电网的信息交互功能，提出了一种基于信息交互的雷击故障断线定位方法。Aiming at the above problems, combined with the information interaction function of the smart distribution network, a lightning fault disconnection location method based on information interaction is proposed.
发明内容 Contents of the invention
本发明提供了一种基于信息交互的雷击故障断线定位方法，有效解决了对线路的雷击故障点不能及时发现和无法准确定位的问题。The invention provides a method for locating lightning fault disconnection based on information interaction, which effectively solves the problem that the lightning fault point of the line cannot be found in time and cannot be accurately located.
为了解决上述问题，本发明采用以下技术方案：基于信息交互的雷击故障断线定位方法，其特征在于，包括以下步骤：In order to solve the above-mentioned problems, the present invention adopts the following technical solutions: a method for locating lightning fault disconnection based on information interaction, which is characterized in that it includes the following steps:
1）采集各分段开关的电压数据，进行断线点判定；1) Collect the voltage data of each sub-section switch and judge the disconnection point;
2）采集所有分界开关的电压数据，进行断线点判定；2) Collect the voltage data of all boundary switches and judge the disconnection point;
3）采集所有智能电表的电压数据，进行断线点判定；3) Collect the voltage data of all smart meters and judge the disconnection point;
4）将上述步骤中一种或者多种判定结果数据输入GIS系统，结合GIS系统中的线路设备拓扑信息进行定位雷击断线点的地理位置。4) Input one or more kinds of judgment result data in the above steps into the GIS system, and locate the geographical location of the lightning strike disconnection point in combination with the topology information of the line equipment in the GIS system.
优选地，所述通过分段开关的电压数据进行断线点判定依据包括：Preferably, the basis for determining the disconnection point based on the voltage data of the segment switch includes:
1a）如果任意一个分段开关采集的电压数据的比对结果为：（|Uabt|＞Uzd）&（|Ubct|＜Uzd），则认为该分段开关前侧发生A相雷击断线故障，1a) If the comparison result of the voltage data collected by any segment switch is: (|U abt |>U zd ) & (|U bct |<U zd ), it is considered that a phase A lightning strike occurs on the front side of the segment switch disconnection fault,
1b）如果任意一个分段开关采集的电压数据的比对结果为：1b) If the comparison result of the voltage data collected by any segment switch is:
|Uabt|＞Uzd 且|Ubct|＞Uzd，则认为该分段开关前侧发生B相雷击断线故障，|U abt |＞U zd and |U bct |＞U zd , it is considered that the B-phase lightning disconnection fault occurs on the front side of the section switch,
1c）如果任意一个分段开关采集的电压数据的比对结果为：1c) If the comparison result of the voltage data collected by any segment switch is:
（|Uabt|＜Uzd）&（|Ubct|＞Uzd），则认为该分段开关前侧发生C相雷击断线故障，(|U abt |<U zd ) & (|U bct |>U zd ), then it is considered that the phase C lightning strike disconnection fault occurs on the front side of the section switch,
其中，Uabt和Ubct分别为AB相线电压和BC相线电压的突变量，Uzd为断线电压整定值。Among them, U abt and U bct are the sudden changes of AB phase line voltage and BC phase line voltage respectively, and U zd is the setting value of broken line voltage.
优选地，所述通过分界开关的电压数据进行断线点判定依据包括：Preferably, the basis for determining the disconnection point through the voltage data of the boundary switch includes:
2a）如果任意一个分界开关采集的电压数据的比对结果为：（|Uabt|＞Uzd）&（|Ubct|＜Uzd），则认为该分段开关前侧发生A相雷击断线故障，2a) If the comparison result of the voltage data collected by any boundary switch is: (|U abt |> U zd ) & (|U bct |<U zd ), it is considered that the front side of the sub-section switch has a phase A lightning break line failure,
2b）如果任意一个分界开关采集的电压数据的比对结果为：|Uabt|＞Uzd且|Ubct|＞Uzd，则认为该分段开关前侧发生B相雷击断线故障，2b) If the comparison result of the voltage data collected by any one boundary switch is: |U abt |＞U zd and |U bct |＞U zd , it is considered that the B-phase lightning strike disconnection fault occurs on the front side of the sub-section switch,
2c）如果任意一个分界开关采集的电压数据的比对结果为：（|Uabt|＜Uzd）&（|Ubct|＞Uzd），则认为该分段开关前侧发生C相雷击断线故障，2c) If the comparison result of the voltage data collected by any boundary switch is: (|U abt |<U zd ) & (|U bct |>U zd ), then it is considered that the phase C lightning break occurs on the front side of the subsection switch line failure,
其中，Uabt和Ubct分别为AB相线电压和BC相线电压的突变量，Uzd为断线电压整定值。Among them, U abt and U bct are the sudden changes of AB phase line voltage and BC phase line voltage respectively, and U zd is the setting value of broken line voltage.
优选地，所述通过智能电表的电压数据进行断线点判定依据包括：Preferably, the basis for determining the disconnection point through the voltage data of the smart meter includes:
3a）如果任意一个智能电表采集的电压数据的比对结果为：3a) If the comparison result of the voltage data collected by any smart meter is:
（|Uat|＞Uzd）&（|Ubt|＜Uzd）&（|Uct|＞Uzd），则认为该智能电表前侧发生A相雷击断线故障,(|U at |＞U zd )&(|U bt |＜U zd )&(|U ct |＞U zd ), then it is considered that a phase A lightning disconnection fault occurs on the front side of the smart meter,
3b）如果任意一个智能电表采集的电压数据的比对结果为3b) If the comparison result of the voltage data collected by any smart meter is
（|Uat|＞Uzd）&（|Ubt|＞Uzd）&（|Uct|＜Uzd），则认为该智能电表前侧发生B相雷击断线故障,(|U at |＞U zd )&(|U bt |＞U zd )&(|U ct |＜U zd ), it is considered that the front side of the smart meter has a B-phase lightning disconnection fault,
3c）如果任意一个智能电表采集的电压数据的比对结果为（|Uat|＜Uzd）&（|Ubt|＞Uzd）&（|Uct|＞Uzd），则认为该智能电表前侧发生C相雷击断线故障,3c) If the comparison result of the voltage data collected by any smart meter is (|U at |<U zd )&(|U bt |>U zd )&(|U ct |>U zd ), it is considered that the smart meter A phase C lightning strike disconnection fault occurred on the front side of the meter,
其中，Uat、Ubt、Uct分别为A相、B相、C相电压的突变量，Uzd为断线电压整定值。Among them, U at , U bt , U ct are the mutation values of phase A, phase B and phase C respectively, and U zd is the setting value of disconnection voltage.
本发明的有益效果是：The beneficial effects of the present invention are:
1、该发明实现了对雷击故障的实时监测，大大节省了线路维护的时间、人力和成本，同时避免了因工作人员马虎大意、雷击断点从线缆外部无法判定等一切因素导致的安全隐患，有效提高了电力传输的安全性。1. The invention realizes the real-time monitoring of lightning strike faults, which greatly saves the time, manpower and cost of line maintenance, and at the same time avoids potential safety hazards caused by all factors such as careless staff and lightning breakpoints that cannot be determined from the outside of the cable. , effectively improving the security of power transmission.
2、该发明通过判定数据和GIS系统的结合，快速、准确的实现雷击断点位置的地理定位，为输电线路的抢修提供了充分的时间保障。2. Through the combination of the judgment data and the GIS system, the invention quickly and accurately realizes the geographical location of the lightning strike breakpoint, and provides sufficient time guarantee for the emergency repair of the transmission line.
附图说明 Description of drawings
图1是本发明的流程图。Figure 1 is a flow chart of the present invention.
具体实施方式 Detailed ways
如图1所示，本发明的一种基于信息交互的雷击故障断线定位方法，它通过以下步骤来实现的：As shown in Figure 1, a kind of lightning fault disconnection location method based on information interaction of the present invention, it realizes through the following steps:
1）采集各分段开关的电压数据，通过以下判定依据进行断线点判定：1) Collect the voltage data of each sub-section switch, and judge the disconnection point according to the following judgment basis:
1a）如果任意一个分段开关采集的电压数据的比对结果为：（|Uabt|＞Uzd）&（|Ubct|＜Uzd），则认为该分段开关前侧发生A相雷击断线故障，1a) If the comparison result of the voltage data collected by any segment switch is: (|U abt |>U zd ) & (|U bct |<U zd ), it is considered that a phase A lightning strike occurs on the front side of the segment switch disconnection fault,
1b）如果任意一个分段开关采集的电压数据的比对结果为：1b) If the comparison result of the voltage data collected by any segment switch is:
|Uabt|＞Uzd且|Ubct|＞Uzd，则认为该分段开关前侧发生B相雷击断线故障，|U abt |＞U zd and |U bct |＞U zd , it is considered that the B-phase lightning disconnection fault occurs on the front side of the section switch,
1c）如果任意一个分段开关采集的电压数据的比对结果为：1c) If the comparison result of the voltage data collected by any segment switch is:
（|Uabt|＜Uzd）&（|Ubct|＞Uzd），则认为该分段开关前侧发生C相雷击断线故障，(|U abt |<U zd )&(|U bct |>U zd ), then it is considered that the phase C lightning strike disconnection fault occurs on the front side of the section switch,
其中，Uabt和Ubct分别为AB相线电压和BC相线电压的突变量，Uzd为断线电压整定值。Among them, U abt and U bct are the sudden changes of AB phase line voltage and BC phase line voltage respectively, and U zd is the setting value of broken line voltage.
2）采集所有分界开关的电压数据，通过判定依据进行断线点判定：2) Collect the voltage data of all boundary switches, and judge the disconnection point according to the judgment basis:
2a）如果任意一个分界开关采集的电压数据的比对结果为：（|Uabt|＞Uzd）&（|Ubct|＜Uzd），则认为该分段开关前侧发生A相雷击断线故障，2a) If the comparison result of the voltage data collected by any boundary switch is: (|U abt |> U zd ) & (|U bct |<U zd ), it is considered that the front side of the sub-section switch has a phase A lightning break line failure,
2b）如果任意一个分界开关采集的电压数据的比对结果为：|Uabt|＞Uzd且|Ubct|＞Uzd，则认为该分段开关前侧发生B相雷击断线故障，2b) If the comparison result of the voltage data collected by any one boundary switch is: |U abt |＞U zd and |U bct |＞U zd , it is considered that the B-phase lightning strike disconnection fault occurs on the front side of the sub-section switch,
2c）如果任意一个分界开关采集的电压数据的比对结果为：（|Uabt|＜Uzd）&（|Ubct|＞Uzd），则认为该分段开关前侧发生C相雷击断线故障，2c) If the comparison result of the voltage data collected by any boundary switch is: (|U abt |<U zd ) & (|U bct |>U zd ), then it is considered that the phase C lightning break occurs on the front side of the subsection switch line failure,
其中，Uabt和Ubct分别为AB相线电压和BC相线电压的突变量，Uzd为断线电压整定值。Among them, U abt and U bct are the sudden changes of AB phase line voltage and BC phase line voltage respectively, and U zd is the setting value of broken line voltage.
3）采集所有智能电表的电压数据，通过判定依据进行断线点判定：3) Collect the voltage data of all smart meters, and judge the disconnection point according to the judgment basis:
3a）如果任意一个智能电表采集的电压数据的比对结果为：3a) If the comparison result of the voltage data collected by any smart meter is:
（|Uat|＞Uzd）&（|Ubt|＜Uzd）&（|Uct|＞Uzd），则认为该智能电表前侧发生A相雷击断线故障,(|U at |＞U zd ) & (|U bt |＜U zd )&(|U ct |＞U zd ), it is considered that the front side of the smart meter has a phase A lightning disconnection fault,
3b）如果任意一个智能电表采集的电压数据的比对结果为（|Uat|＞Uzd）&（|Ubt|＞Uzd）&（|Uct|＜Uzd），则认为该智能电表前侧发生B相雷击断线故障,3b) If the comparison result of the voltage data collected by any smart meter is (|U at |＞U zd )&(|U bt |＞U zd )&(|U ct |<U zd ), it is considered that the smart meter The B-phase lightning strike disconnection fault occurred on the front side of the meter,
3c）如果任意一个智能电表采集的电压数据的比对结果为（|Uat|＜Uzd）&（|Ubt|＞Uzd）&（|Uct|＞Uzd），则认为该智能电表前侧发生C相雷击断线故障,3c) If the comparison result of the voltage data collected by any smart meter is (|U at |<U zd )&(|U bt |>U zd )&(|U ct |>U zd ), it is considered that the smart meter A phase C lightning strike disconnection fault occurred on the front side of the meter,
其中，Uat、Ubt、Uct分别为A相、B相、C相电压的突变量，Uzd为断线电压整定值。Among them, U at , U bt , U ct are the mutation values of phase A, phase B and phase C respectively, and U zd is the setting value of disconnection voltage.
4）将上述步骤中一种或者多种判定结果数据输入GIS系统，结合GIS系统中的线路设备拓扑信息进行定位雷击断线点的地理位置。4) Input one or more kinds of judgment result data in the above steps into the GIS system, and locate the geographical location of the lightning strike disconnection point in combination with the topology information of the line equipment in the GIS system.
本发明通过信息交互总线集成配电自动化系统、用电采集系统的电压信息，结合配电网络拓扑结构，通过对断线点的拓扑位置进行分析实现了在GIS图形界面上雷击断线点的定位，不仅实现可视化管理，而且通过快速断线报警定位，及时抢修，消除雷击断线安全隐患，降低人身伤害事故的发生几率。The present invention integrates the voltage information of the power distribution automation system and the power collection system through the information interaction bus, combines the topological structure of the power distribution network, and realizes the location of the lightning strike broken line point on the GIS graphical interface by analyzing the topological position of the broken line point , not only to achieve visual management, but also through rapid disconnection alarm positioning, timely repair, eliminate the potential safety hazard of lightning strike disconnection, and reduce the probability of personal injury accidents.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103278736A (en) * | 2013-04-12 | 2013-09-04 | 南方电网科学研究院有限责任公司 | Method for automatically inquiring and diagnosing lightning of trip circuit and issuing diagnosis result |
| CN103424670A (en) * | 2013-08-12 | 2013-12-04 | 国网电力科学研究院武汉南瑞有限责任公司 | Lightning stroke automatic diagnosis system for trip accident of power transmission line |
| CN104698341A (en) * | 2015-03-10 | 2015-06-10 | 广东电网有限责任公司佛山供电局 | Method and system for positioning lightning strike fault point of distribution line |
| CN109507528A (en) * | 2018-11-15 | 2019-03-22 | 国网山西省电力公司大同供电公司 | A kind of 10kV overhead transmission line lightning-caused breaking warning device based on fault current detection |
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| CN103424670B (en) * | 2013-08-12 | 2015-11-18 | 国网电力科学研究院武汉南瑞有限责任公司 | A kind of thunderbolt auto-check system of transmission line of electricity trip accident |
| CN104698341A (en) * | 2015-03-10 | 2015-06-10 | 广东电网有限责任公司佛山供电局 | Method and system for positioning lightning strike fault point of distribution line |
| CN109507528A (en) * | 2018-11-15 | 2019-03-22 | 国网山西省电力公司大同供电公司 | A kind of 10kV overhead transmission line lightning-caused breaking warning device based on fault current detection |
| CN109507528B (en) * | 2018-11-15 | 2020-11-06 | 国网山西省电力公司大同供电公司 | An alarm device for lightning strike and disconnection of 10kV overhead line based on fault current detection |
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