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《Transactions of China Electrotechnical Society》 2002-03
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Approach of Power Phenomenon in Nonsinusoidal Circuit and Asymmetrical Circuit

Wang Maohai Liu Huijin(School of Electrical Engineering,Wuhan University 430072 China)  
From physical and mathematical points of view,this paper analyses the nature of instantaneous active and reactive power.It points out that,as invented measurements,instantaneous active and reactive power should not take absolute forms.Instantaneous active power should represent ideal power distribution;its results may be variable because the "ideal" may be variable.In three-wire-three-phase circuit,instantaneous reactive power flows not only between different phases ,but also between the three-phase source and the three-phase load.The paper presents two examples,by which the theory mentioned above is confirmed.
【CateGory Index】: TM132
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