CN113189445A - Configurable multi-class fault positioning and identifying method and system in low-voltage transformer area - Google Patents
Configurable multi-class fault positioning and identifying method and system in low-voltage transformer area Download PDFInfo
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- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
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Abstract
本发明公开了一种低压台区内可配置多类故障定位识别方法和系统，包括以下步骤，根据系统通信方式配置拓扑识别方案；配置各种设备的故障识别码及状态；若低压台区内设备通过载波方式通讯，则执行载波通讯故障定位流程；若低压台区内设备通过非载波方式通讯，则执行非载波通讯故障定位流程；若低压台区内设备包括载波通讯和非载波方式通讯，则执行混合通讯模式故障定位流程。所述系统包括智能融合终端、各层级节点设备。本发明公开的故障定位方法和系统除了适用于低压台区内以载波通讯方式连接的设备还适用于多种其他通讯方式连接的设备，并能实现对多类型故障的定位，输出最高层节点的定位信息，减少多报和误报，缩短故障点排除时间。
The invention discloses a method and system for locating and identifying faults that can be configured in a low-voltage station area, comprising the following steps: configuring a topology identification scheme according to a system communication mode; configuring fault identification codes and states of various equipment; If the equipment communicates through the carrier mode, the carrier communication fault location process is performed; if the equipment in the low-voltage station communicates through the non-carrier mode, the non-carrier communication fault location process is performed; if the equipment in the low-voltage station area includes the carrier communication and the non-carrier mode communication, Then execute the fault location process of mixed communication mode. The system includes an intelligent fusion terminal and node devices at various levels. The fault location method and system disclosed by the present invention are not only applicable to the equipment connected by carrier communication in the low-voltage station area, but also applicable to the equipment connected by various other communication methods, and can realize the location of multiple types of faults, and output the highest level node's fault location. Locate information, reduce over-reporting and false alarms, and shorten troubleshooting time.
Description
Technical Field
The invention relates to the technical field of power equipment internet of things, in particular to a configurable multi-class fault positioning and identifying method and system in a low-voltage transformer area.
Background
With the progress of society, the power internet of things and the 5G technology are widely popularized, the complexity and difficulty of the national power grid line laying are increased at a geometric speed, and for the power grid operation and inspection part, the maintenance and the overhaul of the power grid line and the positioning of the fault of the electrical equipment connected into the power grid line are more and more important. At the present stage, in the operation, detection and maintenance of the power equipment and the line at the low-voltage side of the transformer area, the technical field of fault location of the equipment line still mainly adopts manual inspection, and the transformer area is in charge of detection reporting mode, so that the response is very slow in the aspects of fault first-aid repair and quick response; in the positioning and identification of the fault types of equipment and lines, the method mainly focuses on a few fault types such as power failure and the like, and cannot cope with the very complex scene of power application.
The application number 202010360754.3 of the invention discloses a topology recognition and fault location device for a low-voltage distribution network and an application method thereof, which describes that a sensor and a recognizer are installed on bottom equipment, and a functional circuit module is used for loading characteristic pulse current on an N line and a PE line and a current loop information receiving module is matched with a corresponding sensor to analyze and recognize. According to the technical scheme, the position of the equipment can be identified only by indicating different characteristic pulse current signals on an electrical level, but the characteristic pulse current signals have instability, and topology identification and fault identification cannot be performed if no additional device is provided.
The Chinese invention application with the application number of 201911018817.0 discloses a low-voltage transformer area line fault positioning system based on intelligent circuit breakers, wherein the intelligent circuit breakers are additionally arranged at all positions of different levels in a transformer area, the tail ends of all branch lines are connected through interconnection switches, each intelligent circuit breaker is connected with a topology recognition device LTU, the collected current and voltage information is read through the topology recognition devices LTU, the physical position and level relation information of each node is obtained through analysis and calculation, and the information is sent to a monitoring center. When a line fault occurs between the intelligent circuit breakers of the two levels, the circuit breaker of the current level arranged near a fault point is tripped and opened preferentially. The technical scheme mainly aims at fault location of equipment additionally provided with the intelligent circuit breaker, focuses on controlling the timing switching-off function of a fault point, has certain limitation, and can only carry out fault location work aiming at a carrier communication mode.
In a word, the existing low-voltage transformer area fault positioning technical scheme has the following problems:
1) the fault location can be carried out only on the equipment connected in the carrier communication mode, and the fault location can not be carried out on the equipment connected in other communication modes.
2) The fault location requires a topology generator and an identifier to be installed in equipment in a low-voltage transformer area, so that the cost is high;
3) the positioned fault types are few, and only fault types such as power failure and the like exist, so that the adaptability is not strong;
4) in the whole low-voltage distribution area topological hierarchical structure, because equipment nodes in a distribution area often exist in a tree-like hierarchical mode, the problem that the faults of main equipment nodes can cause sub-nodes of the equipment nodes is solved, a plurality of nodes in the distribution area report a plurality of similar faults simultaneously, the main and secondary nodes cannot be distinguished, the conditions of multiple reports and false reports of the same faults exist, the operation and detection efficiency is not improved, and fault points are quickly located.
Disclosure of Invention
The invention aims to solve the technical problem of providing a flexibly configurable low-voltage area fault positioning and identifying method and a flexibly configurable low-voltage area fault positioning and identifying system which can be suitable for connection in various communication modes, can position various faults, can distinguish primary and secondary nodes from similar faults, and reduce multiple reports and false reports of fault events in a low-voltage area.
In order to solve the technical problem, the invention provides a configurable multi-type fault positioning and identifying method in a low-voltage transformer area, which comprises the following steps:
configuring a topology identification scheme according to a system communication mode;
configuring fault identification codes and states of various devices;
if the equipment in the low-voltage transformer area communicates in a carrier mode, executing a carrier communication fault positioning process;
if the equipment in the low-voltage transformer area communicates in a non-carrier mode, executing a non-carrier communication fault positioning process;
and if the equipment in the low-voltage distribution area comprises carrier communication and non-carrier communication, executing a fault positioning process in a hybrid communication mode.
Furthermore, the faults in the step of configuring the fault identification codes and the states of various devices comprise power failure faults, residual current early warning, residual current warning and overload warning.
Further, the step of executing the carrier communication fault location procedure includes the following steps:
each node is provided with a topology generation module and a topology identification module, and a root node is also provided with a fault positioning module;
a fault positioning module of a root node sends a topology generation command;
each node topology generation module receives a topology generation command and sends out a characteristic signal;
each node topology identification module identifies a characteristic signal sent by a lower layer topology generation module, generates a characteristic code, returns the characteristic code to an upper layer node topology identification module, and finally transmits the characteristic code to a root node fault positioning module to form a topology hierarchical structure generation file;
the carrier communication management module monitors fault signals of each node device in the distribution area, sends the fault signals to the fault positioning module to analyze the type and the position of the fault, and positions the fault signals to corresponding devices and lines;
and if a plurality of similar faults are received, finding the highest-layer node with the similar faults.
Further, the step of executing the non-carrier communication fault location procedure includes the following steps:
configuring communication parameters;
configuring a topological hierarchical structure to generate a file;
other communication management modules periodically and actively inquire fault signals of each node device in the low-voltage transformer area;
the other communication management modules send the fault signals to the fault positioning module to analyze the fault type and position the fault signals to corresponding equipment and lines;
and if a plurality of similar faults are received, finding the highest-layer node with the similar faults.
Further, the step of executing the hybrid communication mode fault location procedure includes the steps of:
generating a topological hierarchical structure generation file for nodes which are communicated through carrier waves according to the first four steps of a carrier communication fault positioning process;
adding the nodes which are communicated through the non-carrier waves into the topological hierarchical structure generation file generated in the last step to form a final topological hierarchical structure generation file;
waiting for each node device in the transformer area to report faults;
the fault positioning module analyzes the fault type and position and positions the fault to corresponding equipment and lines;
and if a plurality of similar faults are received, finding the highest-layer node with the similar faults.
Further, the step of finding the highest node with homogeneous faults comprises the following steps:
after receiving the fault signal, starting a similar fault type timer and setting delay time;
continuously receiving a plurality of similar fault signals reported by each node device within the set delay time;
finding out nodes with similar fault events according to the equipment node hierarchical diagram in the transformer area;
sequentially searching upwards whether the father node of each branch fails or not from the leaf node of each branch;
if the father node fails, recording the address and the level of the father node, and if the father node does not fail, not recording the address and the level;
repeating the previous step until the root node is searched.
The invention also provides a configurable multi-class fault positioning and identifying system in a low-voltage transformer area, which comprises an intelligent fusion terminal and each level of node equipment, wherein each level of node equipment comprises a general table, switch equipment on different levels, a meter box and an electric meter in the meter box; each level of node equipment is provided with a topology generation module and a topology identification module; the fault positioning module in the intelligent fusion terminal is respectively connected with the topology generation module, the topology identification module, the system configuration module, the carrier management module and other communication management modules; the topology generation module in the intelligent fusion terminal is connected with the topology generation modules in the node equipment of each level; and the topology generation module in each level of node equipment is connected with the topology identification module in the upper level of node equipment.
Further, the fault location module includes a homogeneous fault type timer.
Further, the system configuration module includes a network configuration tool module and a general configuration tool module.
Furthermore, the other communication management modules comprise a serial communication management module.
The invention has the beneficial effects that: the fault positioning method and the fault positioning system disclosed by the invention are not only suitable for equipment connected in a low-voltage distribution room in a carrier communication mode, but also suitable for equipment connected in various other communication modes, and can position faults of low-voltage equipment of various access types in a distribution room topology layer by using a configurable flexible mode. Meanwhile, by configuring the fault types, the fault identification codes and the states of the equipment can be flexibly set according to the fault conditions of the equipment in different distribution areas, and the positioning of multiple types of faults is realized. In addition, reasonable delay time is set through statistical analysis of concerned fault types, in the time period, the positions and the fault types of fault nodes are reported according to topological structure analysis, the positioning information of the highest-layer node is output to the fault types, multi-report and false report are reduced, the fault point eliminating time is shortened, and therefore the operation and detection efficiency is improved.
Drawings
FIG. 1 is a flow chart of an embodiment of the present invention.
Fig. 2 is a flowchart of step S103 in fig. 1.
Fig. 3 is a flowchart of step S104 in fig. 1.
Fig. 4 is a flowchart of step S105 in fig. 1.
Fig. 5 is a flowchart for finding the highest-level node with homogeneous fault in fig. 2 to 4.
Fig. 6 is a structural view of the embodiment of the present invention.
Fig. 7 is an internal structure diagram of the smart convergence terminal 601 in fig. 6.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.
As shown in fig. 1, the configurable multi-class fault location identification method in the low-voltage transformer area includes the following steps:
step S101: and configuring a topology identification scheme according to the system communication mode.
Step S102: and configuring fault identification codes and states of various devices, including power failure fault, residual current early warning, residual current warning and overload warning.
Step S103: if the equipment in the low-voltage transformer area communicates in a carrier mode, executing a carrier communication fault positioning process:
as shown in fig. 2, according to the following steps,
step S201: each node is provided with a topology generation module and a topology identification module, and a root node is also provided with a fault positioning module;
step S202: a fault positioning module of a root node sends a topology generation command;
step S203: each node topology generation module receives a topology generation command and sends out a characteristic signal;
step S203: each node topology identification module identifies a characteristic signal sent by a lower layer topology generation module, generates a characteristic code, returns the characteristic code to an upper layer node topology identification module, and finally transmits the characteristic code to a root node fault positioning module to form a topology hierarchical structure generation file;
step S204: the carrier communication management module monitors fault signals of each node device in the distribution area, sends the fault signals to the fault positioning module to analyze the type and the position of the fault, and positions the fault signals to corresponding devices and lines;
step S205: and if a plurality of similar faults are received, finding the highest-layer node with the similar faults.
As a further optimization scheme, taking the hierarchical relationship of the device nodes in the platform area shown in fig. 6 as an example, the finally formed topology hierarchical structure generation file may be in the form of the following table:
step S104, if the equipment in the low-voltage transformer area communicates in a non-carrier mode, executing a non-carrier communication fault positioning process:
as shown in fig. 3, according to the following steps,
step S301, configuring communication parameters;
step S302, configuring a topological hierarchical structure generation file;
step S303, other communication management modules periodically and actively inquire fault signals of each node device in the low-voltage transformer area;
step S304, other communication management modules send the fault signal to a fault positioning module to analyze the fault type and position to position the corresponding equipment and line;
step S305, if a plurality of similar faults are received, the highest layer node with the similar faults is found.
Step S105, if the equipment in the low-voltage distribution area comprises carrier communication and non-carrier communication, executing a fault positioning process in a hybrid communication mode:
as shown in fig. 4, according to the following steps,
step S401, generating a topological hierarchical structure generation file for nodes which pass through carrier communication according to the first four steps of a carrier communication fault positioning process;
step S402, adding the nodes which are communicated through the non-carrier into the topological hierarchical structure generating file generated in the last step to form a final topological hierarchical structure generating file;
step S403, waiting for each node device in the distribution room to report faults;
step S404, the fault positioning module analyzes the fault type and position and positions the fault to the corresponding equipment and line;
step S405, if a plurality of similar faults are received, the highest layer node with the similar faults is found.
The step of finding the highest-level node with homogeneous faults in step S206, step S306 and step S405 includes the following steps, as shown in fig. 5:
step S501, after receiving a fault signal, starting a similar fault type timer and setting delay time;
step S502, continuously receiving a plurality of similar fault signals reported by each node device within the set delay time;
step S503, finding out nodes with similar fault events according to the equipment node hierarchical diagram in the transformer area;
step S504, starting from the leaf node of each branch in turn, searching upwards in turn whether the father node of each branch has a fault;
step S505, if the father node fails, the address and the level of the father node are recorded, and if the father node does not fail, the address and the level are not recorded;
step S506, repeat the previous step until the root node is found.
The following explains how to find the highest-level node with the same type of fault according to the above steps by taking the hierarchical relationship of the device nodes in the distribution room in fig. 6 as an example:
1) if switch 609 (address 202008200008) and switch 608 (address 202008200009) fail, the file is generated according to the topology hierarchy, and it is known that there are 7 branches in the topology, and it starts from the leaf node of each branch in turn, i.e. the end table, and searches upwards in turn to see if its parent node fails;
2) if the father node fails, recording the address addr and the level of the father node, and if the father node does not fail, not recording the address addr and the level;
for example, if the found switch 202008200008 fails, addr is recorded as 202008200008 and level is recorded as 4; when the switch 202008200009 has a fault, recording addr 202008200009 and level 3;
3) repeat 2) until the root node is searched.
In this example, two nodes do not have the same parent node to fail, so that they are the nodes with higher hierarchy, and the failure information of the two nodes is reported.
If the switch 605 (address 202008200012) also has a fault, the switch 605 is a parent node of the switch 609 and the switch 608, and the same kind of event occurs, so that only the fault information of the node of the switch 605 is reported, if the power failure event occurs, the switch 605 has power failure, the following nodes are all powered off certainly, and thus, only one node of the switch 605 is reported to have power failure, which is accurate and reduces the reported fault information.
As shown in fig. 6, the configurable multi-class fault location and identification system in the low-voltage transformer area includes an intelligent convergence terminal 601, and each hierarchy of node devices, where the each hierarchy of node devices includes a summary table 602, a switch 603 to a switch 609, a switch 611, a meter box 610, a meter 613, a meter box 614, a meter 615, a meter 616, a meter box 617, a meter 618, and a meter 619. The intelligent fusion terminal and the node equipment in each level are connected according to a tree structure taking the intelligent fusion terminal as a root node. As shown in fig. 7, a fault location module 701, a topology generation module 702, a topology identification module 703, a system configuration module 704, a carrier management module 705, and another communication management module 706 are installed in the intelligent convergence terminal. The fault location module 701 is respectively connected to the topology generation module 702, the topology identification module 703, the system configuration module 704, the carrier management module 705, and the other communication management module 706. A topology generation module and a topology identification module are installed on each level of node equipment, and a topology generation module 702 in the intelligent convergence terminal is connected with the topology generation modules in each level of node equipment; and the topology generation module in each level of node equipment is connected with the topology identification module in the upper level of node equipment.
As a more optimized solution, the fault location module 701 includes a homogeneous fault type timer.
As a more optimized solution, the system configuration module includes a network configuration tool module and a general configuration tool module.
As a more optimized scheme, the other communication management modules include a serial communication management module.
The embodiment of the invention can carry out sequence adjustment, combination and deletion according to actual needs.
The embodiments describe the present invention in detail, and the specific embodiments are applied to illustrate the principle and the implementation of the present invention, and the above embodiments are only used to help understand the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113848420A (en) * | 2021-09-10 | 2021-12-28 | 江苏方天电力技术有限公司 | Low-voltage transformer area energy network state sensing method, device and equipment |
| CN114024367A (en) * | 2021-11-08 | 2022-02-08 | 南京师范大学 | Low-voltage transformer area fault processing method and equipment based on edge calculation |
| CN114710532A (en) * | 2022-04-02 | 2022-07-05 | 中国科学院水生生物研究所 | Museum safety electricity utilization alarm suppression method and device |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6597180B1 (en) * | 1998-12-28 | 2003-07-22 | Nippon Kouatsu Electric Co., Ltd. | Fault point location system |
| CN2741057Y (en) * | 2004-06-09 | 2005-11-16 | 上海久隆电力科技有限公司 | Fault monitoring system of distributing lines |
| CN1707277A (en) * | 2004-06-09 | 2005-12-14 | 上海久隆电力科技有限公司 | Distribution line fault monitoring system |
| US20130286852A1 (en) * | 2012-04-27 | 2013-10-31 | General Instrument Corporation | Estimating Physical Locations of Network Faults |
| CN105551218A (en) * | 2015-12-28 | 2016-05-04 | 国家电网公司 | A handheld platform debugging terminal |
| CN108828404A (en) * | 2018-05-09 | 2018-11-16 | 国网浙江省电力有限公司电力科学研究院 | Low-voltage platform area electric topology identification system and method for fast failure positioning |
| CN110120668A (en) * | 2019-05-08 | 2019-08-13 | 许昌许继软件技术有限公司 | A kind of area's topology automatic identification method and system |
| CN111463783A (en) * | 2020-04-29 | 2020-07-28 | 山东卓远智能科技有限公司 | Low-voltage distribution network topology identification and fault positioning device and application method |
| CN112054598A (en) * | 2020-09-10 | 2020-12-08 | 烟台科大正信电气有限公司 | Power grid low-voltage distribution area topology identification system |
| CN112114230A (en) * | 2020-09-18 | 2020-12-22 | 中电装备山东电子有限公司 | Distribution network monitoring system for low-voltage distribution area and distribution area topology identification method |
| CN215575447U (en) * | 2021-04-28 | 2022-01-18 | 威胜信息技术股份有限公司 | Configurable multi-class fault positioning and identifying system in low-voltage transformer area |
-
2021
- 2021-04-28 CN CN202110466180.2A patent/CN113189445A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6597180B1 (en) * | 1998-12-28 | 2003-07-22 | Nippon Kouatsu Electric Co., Ltd. | Fault point location system |
| CN2741057Y (en) * | 2004-06-09 | 2005-11-16 | 上海久隆电力科技有限公司 | Fault monitoring system of distributing lines |
| CN1707277A (en) * | 2004-06-09 | 2005-12-14 | 上海久隆电力科技有限公司 | Distribution line fault monitoring system |
| US20130286852A1 (en) * | 2012-04-27 | 2013-10-31 | General Instrument Corporation | Estimating Physical Locations of Network Faults |
| CN105551218A (en) * | 2015-12-28 | 2016-05-04 | 国家电网公司 | A handheld platform debugging terminal |
| CN108828404A (en) * | 2018-05-09 | 2018-11-16 | 国网浙江省电力有限公司电力科学研究院 | Low-voltage platform area electric topology identification system and method for fast failure positioning |
| CN110120668A (en) * | 2019-05-08 | 2019-08-13 | 许昌许继软件技术有限公司 | A kind of area's topology automatic identification method and system |
| CN111463783A (en) * | 2020-04-29 | 2020-07-28 | 山东卓远智能科技有限公司 | Low-voltage distribution network topology identification and fault positioning device and application method |
| CN112054598A (en) * | 2020-09-10 | 2020-12-08 | 烟台科大正信电气有限公司 | Power grid low-voltage distribution area topology identification system |
| CN112114230A (en) * | 2020-09-18 | 2020-12-22 | 中电装备山东电子有限公司 | Distribution network monitoring system for low-voltage distribution area and distribution area topology identification method |
| CN215575447U (en) * | 2021-04-28 | 2022-01-18 | 威胜信息技术股份有限公司 | Configurable multi-class fault positioning and identifying system in low-voltage transformer area |
Non-Patent Citations (2)
| Title |
|---|
| UDDIN, B .ET: "Detection and Locating the Point of Fault in Distribution Side of Power System Using WSN Technology", 2017 4TH INTERNATIONAL CONFERENCE ON ADVANCES IN ELECTRICAL ENGINEERING (ICAEE), 30 August 2017 (2017-08-30) * |
| 范炜豪;陈烨;: "配电网故障定位与快速抢修系统研究", 工矿自动化, no. 10, 25 September 2012 (2012-09-25) * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113848420A (en) * | 2021-09-10 | 2021-12-28 | 江苏方天电力技术有限公司 | Low-voltage transformer area energy network state sensing method, device and equipment |
| CN114024367A (en) * | 2021-11-08 | 2022-02-08 | 南京师范大学 | Low-voltage transformer area fault processing method and equipment based on edge calculation |
| CN114024367B (en) * | 2021-11-08 | 2023-09-19 | 南京师范大学 | Low-voltage area fault processing method and equipment based on edge calculation |
| CN114710532A (en) * | 2022-04-02 | 2022-07-05 | 中国科学院水生生物研究所 | Museum safety electricity utilization alarm suppression method and device |
| CN114710532B (en) * | 2022-04-02 | 2023-10-03 | 中国科学院水生生物研究所 | Method and device for suppressing security electricity utilization alarm of museum |
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