| 引用本文: | 焦彦军,杜松广,王琪,陈成.基于信息矛盾原理的畸变信息修正及配电网故障区段定位[J].电力系统保护与控制,2014,42(2):43-48.[点击复制] |
| JIAO Yan-jun,DU Song-guang,WANG Qi,CHEN Cheng.Information aberrance correction and fault-section location for distribution networks based on the information contradiction theory[J].Power System Protection and Control,2014,42(2):43-48[点击复制] |
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| 摘要: |
| 为解决依靠故障过流信息的配电网故障定位在信息畸变时易造成的误判，首先对畸变信息进行了分类，在矩阵算法的基础上提出了信息矛盾原理来检测可识别畸变，并通过贝叶斯定理对节点畸变的可能性进行了分析，最后给出了畸变修正和故障定位的策略。该策略可以快速找到畸变信息的位置，仅需提取部分故障信息即可对畸变进行修正，对较复杂的畸变以适当扩大定位区间段的方式来保证故障定位的可靠性。该策略具有故障定位准确、速度快、可靠性高的特点，可以满足复杂多电源线路上的多重故障和多重信息畸变的故障定位。 |
| 关键词: 配电网 故障定位 信息矛盾原理 贝叶斯定理 信息畸变 |
| DOI：10.7667/j.issn.1674-3415.2014.02.007 |
| 投稿时间：2013-05-09修订日期：2013-06-06 |
| 基金项目: |
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| Information aberrance correction and fault-section location for distribution networks based on the information contradiction theory |
| JIAO Yan-jun,DU Song-guang,WANG Qi,CHEN Cheng |
| (School of Electrical & Electronic Engineering, North China Electric Power University, Baoding 071003, China;Acheng Relay Limited Liability Company, Harbin Electric Corporation, Harbin 150000, China) |
| Abstract: |
| The fault sections location in distribution networks based on the information of the short circuit current may get false results due to the information aberrance. To solve the problem, firstly this paper classifies the information aberrance, then proposes the information contradiction theory based on the matrix algorithm to detect recognizable aberrance, analyzes the possibility of aberrant node through the Bayes theorem, and proposes the scheme of aberrance correction and fault location. This strategy can find the position of aberrant node quickly, only extract part of the fault information for correcting aberrance, and for the complex aberrance, expand fault segment appropriately to ensure the reliability of fault location. The strategy has accurate location and fast speed and high reliability. It can solve the fault location of multiple faults and multiple information aberrance in complex multiple power system. |
| Key words: distribution network fault location information contradiction theory Bayes theorem information aberrance |
