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Approach of Power Phenomenon in Nonsinusoidal Circuit and Asymmetrical Circuit
Author(s): 
Pages: 93-96,20
Year: Issue:  3
Journal: TRANSACTIONS OF CHINA ELECTROTECHNICAL SOCIETY

Keyword:  非正弦电路不对称电路瞬时有功功率瞬时无功功率;
Abstract: 从物理和数学的角度,对单相电路、三相电路瞬时有功功率和瞬时无功功率的概念进行了剖析.本文提出,瞬时有功功率和瞬时无功功率并不是绝对的,瞬时有功功率应该是对应于某一目的的理想功率流动,即使对于同一电路,瞬时有功和瞬时无功的结果也应随着分析者的目的的不同而不同.本文同时提出,三相三线电路的无功流动不仅存在于各相之间,而且也可能存在于电源与负载之间.最后,本文通过两个具体实例证实了前面的论点.
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