Electric power self-healing rapid fault positioning method based on non-sound conditions
A fault location, non-sound technology, applied in fault location, detection of faults by conductor type, measurement of electricity, etc., can solve problems such as high computing pressure and probability problems at the same time, achieve rapid self-healing ability, and reduce the probability of node false alarms. Effect
Active Publication Date: 2021-11-05
深圳市景星天成科技有限公司
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Problems solved by technology
[0004] The purpose of the present invention is to provide a fast fault location method based on electric power self-healing under unhealthy conditions to solve the problem of probability of faults in different areas under unhealthy conditions proposed in the above-mentioned background technology, and the traditional way of accessing one by one is difficult to directly The problem of making judgments and computing pressure at the same time
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[0045] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0046] see Figure 1-Figure 5 , the present invention provides technical solutions:
[0047] The present invention provides a fast fault location method based on power self-healing under non-sound conditions, and the method steps are as follows:
[0048] S1.1. Judgment of fault location: perform preliminary judgment on fast fault location range through topology algorithm;
[0049] S1.2. Fault search and location: conduct in-depth search through tree algorith...
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The invention relates to the technical field of electric power self-healing, and concretely relates to an electric power self-healing rapid fault positioning method based on non-sound conditions. The method comprises fault position judgment, fault searching and positioning and area tentative recovery, and the specific fault position judgment steps of a topological algorithm adopted by fault position judgment are as follows: firstly, detection area division: performing preliminary area processing on a to-be-detected area, recording as that each area comprises a plurality of information nodes which jointly form conventional state information, and determining the fault position of the to-be-detected area; and 2, breadth search: when the state information of the whole to-be-detected area changes, searching, actively sending a detection signal to access each area in sequence, and judging whether the state information changes so as to further locate a fault area. The objective of the invention is to improve the accuracy and the speed of judging and positioning a power grid fault position by a non-closed-loop power grid under a non-sound condition.
Description
technical field [0001] The invention relates to the technical field of electric power self-healing, in particular to a fast fault location method based on electric power self-healing under non-sound conditions. Background technique [0002] Distribution network automation is an important means to reduce the power outage time and reduce the power outage area to improve the reliability of power supply. When a fault occurs in the distribution network, the regional power supply can be effectively restored by quickly locating the fault location and then isolating the fault location. However, when judging the location of the fault, because the power distribution equipment, distribution automation system and communication network work in the harsh outdoor environment, and the non-closed-loop power grid signal channel is single, it is easy to miss or make mistakes. The phenomenon of reporting fault information, so there will be a problem of judging the fault area under non-sound con...
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IPC IPC(8): G01R31/08
CPCG01R31/086G01R31/088Y04S10/52
Inventor 练晓玲
Owner 深圳市景星天成科技有限公司