电力系统保护与控制Issue(8)：68-72,5.
基于S变换模时频矩阵的电能质量扰动检测与识别
Detection and recognition of power quality disturbance based on module time-frequency matrixes by S transform
孙楚平 1杨旭2
作者信息
- 1. 华北电力大学可再生能源学院，北京 102206
- 2. 哈尔滨电气集团阿城继电器有限责任公司，哈尔滨 阿城 150090
- 折叠
摘要
Abstract
A classification and recognition method for power quality disturbances based on module time-frequency matrixes by S transform is proposed. The corn of it is that, at first, module time-frequency matrix by S transform is used to indicate the characteristics of power quality distrubance, the standard mode of various distrubances is established on the base of probability density of magnitude of module time-frequency matrix, and then considering euclidean distance between distrubances and standard mode, the degree of similarity can be calculated, and disturbances are classified. And detection precision is also acceptable. The simulation results show that the approach has better anti-interference performance, and classification results in the condition of low SNR and detection precision are also acceptable.关键词
电能质量/扰动识别/S变换/模时频矩阵/概率密度Key words
power quality/disturbance recognition/S transform/module time-frequency matrixes/probability density分类
信息技术与安全科学引用本文复制引用
孙楚平,杨旭..基于S变换模时频矩阵的电能质量扰动检测与识别[J].电力系统保护与控制,2013,(8):68-72,5.
