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《Insulators and Surge Arresters》 2011-06
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Simulation Research and Comparison on HHT and Fourier Transformation in Network Fault

SONG Ming-ling1,ZHOU Li-xing1,DENG Yong2,HU Jing-tao1, (1.College of Electrical and Information Engineering,Changsha University of Science & Technology,Changsha 410014,China;2.Electric Power Company of Chongqing,Chongqing 400014,China)  
The fundamental of HHT and Fourier transformation was introduced through the theory elaboration and matlab simulation experiments.And taking the analog signal for example,the problems of partial discharge,voltage sag,and partial discharge in the practical projects were analyzed by using above two transformations,the visualized spectrograms were obtained,and the differences between the two transformations were compared,in order to make better choice of different transformations in practical application.
【CateGory Index】: TM743;TM711
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