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《Journal of Electric Power Science and Technology》 2009-04
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Square sum root method based non-sinusoidal power definition

DONG Hui,GIANG Li,LIU Li(School of Information and automation,Xi'an University of Architecture and Technology,Xi'an 710055,China)  
Power measurement or reactive power compensation depends on the definition of active and reactive power in present power systems where harmonics cannot be neglected.Three important deficiencies of the existing non-sinusoidal system power definition are pointed out,and the square sum root method based single-phase non-sinusoidal power definition is proposed in this paper.The method remedies the traditional power definition deficiencies,has definite physical meaning.It is proved that the proposed definition can be used for sinusoidal circuit analysis,and makes the sinusoidal circuit to a special case of the definition.The definition is a theoretical guidance for power measurement and reactive power compensation.
【Fund】: 陕西省教育厅专项科研计划(02JC50)
【CateGory Index】: TM714.3
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