RECOGNITION METHOD OF POWER QUALITY DISTURBANCE SIGNALS BASED ON IMAGE FEATURES
In order to meet the requirements of power quality monitoring and grid active control of distributed generation,in this paper,a new method to identify power quality transient disturbances by digital image processing is proposed.First,the power quality signal in the form of one-dimension time series was converted into two-dimensional digital image,and then the image feature enhancement was carried out by Gamma change.A unified feature extraction method of disturbance signal was established,and the automatic recognition method of disturbance type was established to improve the feature extraction efficiency.The results indicated that the proposed method performed a high efficiency and low hardware cost than existing methods in power quality signal recognition,which can further improve the power quality and reliability of distribution network.
Power quality digital image Gamma transform feature extraction
Lin Lin Liu Zuoming
College of Information and Control Engineering,Jilin Institute of Chemical Technology,Jilin 132022,C State Grid Jilin Electric Power Research Institute,Changchun 130021,China
国际会议
吉林
英文
391-394
2018-06-23（万方平台首次上网日期，不代表论文的发表时间）