电力系统保护与控制2016，Vol.44Issue(5)：122-127,6.DOI:10.7667/PSPC150810
基于模糊逻辑的可控串补线路故障分类
Fuzzy-logic-based fault classification in a series compensated transmission line
闫旭 1李春明2
作者信息
- 1. 内蒙古工业大学电力学院，内蒙古自治区 呼和浩特 010000
- 2. 内蒙古工业大学信息工程学院，内蒙古自治区 呼和浩特 010000
- 折叠
摘要
Abstract
This paper presents a fuzzy-logic technique for fault classification in a series compensated transmission line. The proposed method uses the samples of three line currents for half cycle duration to accomplish this task. Daubechies wavelet “dB4” is used with single level decomposition. The features of the line currents are extracted using discrete wavelet transform. The wavelet decomposition coefficient are divided into three bands to calculate the wavelet singular entropy of every frequency band to obtain the characteristics of the different failure. The extracted features are applied as inputs to the fuzzy logic for fault classification. To evaluate the feasibility of the proposed technique, it is tested on a 500 kV, 300 km transmission line for all the ten types of fault using Matlab. Simulation result indicates that the proposed approach has a good performance and it won’t be affected by fault resistances, fault inception angle, faulty types and fault distances at different TCSC firing angles.关键词
可控补偿输电线路/故障分类/TCSC/DWT/模糊逻辑Key words
series compensated transmission line/fault classification/TCSC/DWT/fuzzy logic引用本文复制引用
闫旭,李春明..基于模糊逻辑的可控串补线路故障分类[J].电力系统保护与控制,2016,44(5):122-127,6.
