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Troubleshooting line patrol path planning method under distribution automation condition
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A technology of distribution automation and path planning, which is applied in the direction of fault location, fault detection according to conductor type, and electrical measurement. It can solve the problems of insufficient practicability and low efficiency, so as to reduce power outage time, solve inefficiency, and reduce troubleshooting. the effect of time
Active Publication Date: 2020-02-07
STATE GRID SICHUAN ELECTRIC POWER CORP ELECTRIC POWER RES INST
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[0004] In order to solve the above-mentioned technical problems, the present invention discloses a line inspection path planning method for troubleshooting under distribution automation conditions, so as to solve the problem of low efficiency and insufficient practicability of the line inspection path planning method for troubleshooting under distribution automation conditions in the prior art problems, realize rapid troubleshooting of distribution network faults, and reduce power outage time
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Embodiment 1
[0042] The present invention provides a method for troubleshooting and line inspection path planning under power distribution automation conditions, comprising the following steps:
[0043] 1. Automated transformation of distribution network lines after installation of distribution terminals: according to the number and installation location of distribution terminals, the division of line inspection sections is carried out by using the change of adjacency matrix, as follows:
[0044] (11) Transform the distribution network topology into a connected graph, and form an adjacency matrix A from the connected graph according to the description method of graph theory;
[0045] (12) Obtain the number and installation location of the power distribution terminal again. Because the power distribution terminal is installed near the circuit breaker or switch, the node equipped with the power distribution terminal can be split into two nodes, and the two nodes are not connected; Each time ...
Embodiment 2
[0065] Such as figure 2 Shown is a simple distribution network network in a certain area. The present invention provides a method for troubleshooting and patrolling path planning under the condition of distribution automation, which includes the following steps:
[0066] Distribution lines are generally composed of circuit breakers, line segments, load switches and distribution transformers. figure 2 In , we take circuit breakers, load switches, and distribution transformers at the end as nodes, and line segments as branches, and convert the distribution network topology into image 3 The connectivity graph shown;
[0067] according to image 3 , according to the description method of graph theory, an adjacency matrix A can be formed:
[0068]
[0069] In this simple distribution network, power distribution terminals are installed on the branches CB-S1, S4-S5, and S4-S6, and the positions are close to the upstream switches, see Figure 4 , according to the installatio...
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Abstract
The invention discloses a troubleshooting line patrol path planning method under a distribution automation condition. The method comprises the following steps: (1) after power distribution terminals are installed in a power distribution network line, performing automatic transformation: dividing a line patrol section according to the number and installation positions of the power distribution terminals by using adjacent matrix changes; (2) calculating the shortest distance between line nodes to form a shortest distance matrix; (3) when the power distribution network line is faulty, determiningthe faulty line section according to fault information reported by the power distribution terminals; and (4) determining an optimal troubleshooting line patrol path by using an improved genetic algorithm with the node that traverses the faulty section within the shortest time as the target. By adopting the method, the problems of low efficiency and insufficient practicability of the troubleshooting line patrol path planning method under the distribution automation condition in the prior art are solved, fast troubleshooting of power distribution network faults is realized, and the power outagetime is shortened.
Description
technical field [0001] The invention relates to the field of electric power fault inspection and maintenance, in particular to a method for fault detection and line inspection path planning under the condition of power distribution automation. Background technique [0002] After a fault occurs on the 10kV line of the distribution network, the entire line will be tripped and blacked out due to the fault. At this time, the power company will immediately send repair personnel to patrol the line to find the fault point. After finding the fault point, the line can be repaired and the power supply can be restored. When the power distribution line is not equipped with a power distribution terminal, it is necessary to inspect the entire line to find fault points one by one after a fault, and it takes a long time to inspect the fault line. At present, more and more lines have undergone automatic transformation and installed power distribution terminals. When a fault occurs, the fault...
Claims
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Application Information
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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/08
CPCG01R31/085G01R31/088
Inventor 高艺文张华龙呈周文越刘明忠李世龙张华杰段翔兮李小鹏吴杰冯世林苏学能
Owner STATE GRID SICHUAN ELECTRIC POWER CORP ELECTRIC POWER RES INST
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