基于故障录波时序信息的电网故障诊断

为克服基于开关量的传统故障诊断方法的不足，提出了一种基于故障录波时序信息的高压输电线路故障诊断方法。采用动作时区划分的方法并在边界处引入模糊化，用模糊Petri网针对输电线的运行状态构建了故障诊断模型，结合小波技术提取录波信息中的故障特征量以得到Petri网的点火序列，经过矩阵运算得到故障诊断结果并可以对保护．断路器动作行为进行评价，最后形成故障简报上传主站。通过上海220kV子网故障诊断仿真，验证了该方法的有效性。...

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Bibliographic Details
Published in电力系统保护与控制 Vol. 39; no. 17; pp. 114 - 119
Main Author 颜晟 苏广宁 张沛超 桂强
Format Journal Article
LanguageChinese
Published 上海交通大学电气工程系,上海,200240%华东电网有限公司,上海,200002 2011
Subjects
小波
故障录波信息
故障诊断
时序信息
模糊Petri网
小波
时序信息
故障录波信息
故障诊断
模糊Petri网
Online AccessGet full text
ISSN1674-3415
DOI10.3969/j.issn.1674-3415.2011.17.022

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Summary:为克服基于开关量的传统故障诊断方法的不足，提出了一种基于故障录波时序信息的高压输电线路故障诊断方法。采用动作时区划分的方法并在边界处引入模糊化，用模糊Petri网针对输电线的运行状态构建了故障诊断模型，结合小波技术提取录波信息中的故障特征量以得到Petri网的点火序列，经过矩阵运算得到故障诊断结果并可以对保护．断路器动作行为进行评价，最后形成故障简报上传主站。通过上海220kV子网故障诊断仿真，验证了该方法的有效性。
Bibliography:YAN Sheng, SU Guang-ning, ZHANG Pei-chao, GUI Qiang （1. Department of Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; 2. East China Power Grid Co., Ltd, Shanghai 200002, China）
sequential information; fault diagnosis; fault recorder data： fuzzy Petri net; wavelet
41-1401/TM
In order to overcome the defects of traditional fault diagnosis method using switching yafue,this paper proposes a new method forhighvoltage （HV） transmission lines, which bases on the sequential information of fault recorder data. The operafing time zone is partitioned and the fuzzy theory is applied in adjacent zones. A fuzzy Petri net is developed for the fault diagnosis of transmission lines. Fault events can be extracted from fault recorder data with the help of wavelet techniques and then the firing sequence of Petri net can be treated. The fault diagnosis results as well as evaluation of the operations of protections and circuit breakers are obtained through matrix calculation. Finally a brief fault repor
ISSN:1674-3415
DOI:10.3969/j.issn.1674-3415.2011.17.022