电力系统保护与控制Issue(2)：132-137,6.
基于 ASW-ESPRIT 的电能质量扰动分析
Power quality disturbance analysis based on ASW-ESPRIT
程志友 1王家琦 2左靖坤3
作者信息
- 1. 教育部电能质量工程研究中心，安徽 合肥 230039
- 2. 安徽大学电子信息工程学院，安徽 合肥 230039
- 3. 安徽大学电子信息工程学院，安徽 合肥 230039
- 折叠
摘要
Abstract
Since the ESPRIT algorithm can not analyze non-stationary power quality disturbances, we present a time-frequency analysis method based on adaptive sliding window-ESPRIT algorithm. According to the characteristics of non-stationary power quality signal, the signal is firstly divided into small blocks by the adaptive sliding window. In order to get the frequencies and amplitudes of each block, an ESPRIT algorithm is then applied. Next, it receives the whole information of time-frequency distribution with the parameters of each block. At last, simulations of several non-stationary signals are conducted; the results have strongly indicated that the proposed method is very suitable for the detection of power quality disturbance with practical application prospect.关键词
自适应滑窗/ESPRIT/电能质量扰动/时频分析/非平稳信号Key words
adaptive sliding window/ESPRIT/power quality disturbance/time-frequency analysis/non-stationary signal分类
信息技术与安全科学引用本文复制引用
程志友,王家琦,左靖坤..基于 ASW-ESPRIT 的电能质量扰动分析[J].电力系统保护与控制,2013,(2):132-137,6.
