摘要
大量的非线性负载会造成电能质量"污染",使电能信号复杂多样。针对复杂电能信号采用希尔伯特黄变换(HHT)进行检测分析。介绍了HHT原理,应用HHT对几种最为常见、重要的电能质量扰动及复杂电能质量扰动进行仿真分析。分析表明此方法能精确检测出电压幅值、频率及扰动的起止时刻,适用于分析电能质量信号。
Large number of non-linear loads will cause power quality Pollution,which make power quality signal complex and diverse.For complex power signal,Hilbert Huang Transform（HHT） is used to detect and analyze.HHT theory is introduced used to detect and analyze the common and important power quality disturbances and several complex power quality disturbances.The analysis shows that this method can accurately detect the voltage amplitude,frequency,the start and end time of disturbance,which apply for the analysis of power quality signal.
出处
《陕西电力》
2014年第2期51-54,84,共5页
Shanxi Electric Power
关键词
希尔伯特黄变换
电压暂降
低频振荡
电压波动
频率偏差
多扰动信号
谐波
Hilbert Huang Transform
voltage dip
frequency oscillation
voltage fluctuation
frequency deviation
multi-disturbance signal
harmonic
