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Analysis and Expectation for the Reactive Power Definition in Non-sinusoidal Condition

LIU Jin-hua,LIU Yong-qiang(Electric Power College of South China University of Technology,Guangzhou 510640,China)  
The active power definition is well accepted,but the reactive power definition is still questionable in non-sinusoidal condition.In this paper,there are three methods used to describe the reactive power definition in non-sinusoidal condition,which include time domain analysis method,the frequency domain analysis method and the instantaneous reactive power in three-phase circuits.Some reactive definitions are analyzed and studied.Also gives out a conclusion about requirements of the new reactive power definition.
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