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《Power System Protection and Control》 2009-02
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The simulation and research based on the digital integrator of the Rogowski coil

CHEN Hui,CHEN Wei,LI Wei(Electric Power Security and High Efficiency Lab,Huazhong University of Science and Technology,Wuhan 430074,China)  
Since the relationship between the output signal and the original signal of Rogowski coil is differential,integrator is a vital factor to represent the original signal.This paper focuses on the actual needs of relay protection,analyzes the dynamic characteristics of digital integrator which was utilized by ECT.According to the requirements of precision design,appropriate algorithm was put forward.With the help of power system transient electromagnetic simulation software PSCAD /EMTDC,the desirable results was got.From the perspective of practical engineering,the problems and solutions which should be highlighted in the practical application were raised.
【Fund】: 国家自然科学基金项目(50507005)~~
【CateGory Index】: TM45
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