摘要
通过分析电能质量扰动信号的时域特征,提出一种电能质量扰动分类方法。所提取的扰动分类特征量具有明确的物理意义,有利于对各种电能质量扰动进行估值。某一特征量或某几个特征量能唯一确定一种扰动,使扰动判断不再具有或然性。任一扰动的特征量不因其他扰动的存在而改变。因此,可以准确辨别出混合扰动。MATLAB仿真结果表明,该方法能有效地分类更多的单一和混合电能质量扰动,并且计算耗时更少。
A novel classification of power quality disturbance has been proposed by analysising of power quality disturbances in the time-domain characteristics of signals.the classification has a more clear physical meaning,so it is useful to evaluation of power quality disturbances.a feature or a number of features determine a disturbance uniquely in order to eleminate error of evaluation.One of the features of disturbances is undepend on any others,so it can accurately identify mixed disturbance.MATLAB simulation results show that this method is effective in classification of single and mixed power quality disturbances,and less time-consuming of calculation.
出处
《电气开关》
2011年第2期44-46,共3页
Electric Switchgear
关键词
电能质量
电能质量扰动
扰动分类
power quality
power quality disturbances
disturbance classification
