Title

Currents’ Physical Components (CPC) in three-phase systems with asymmetrical voltage

Document Type

Article

Publication Date

1-1-2015

Abstract

Energy flow related phenomena in three-phase unbalanced, linear, time-invariant (LTI) loads, supplied with asymmetrical, but sinusoidal voltage, in three-wire systems, are investigated in the paper. It is demonstrated that the load current can be decomposed into Currents’ Physical Components (CPC), associated with distinctive physical phenomena in the load. It is also shown how the CPC can be expressed in terms of the supply voltage and equivalent parameters of the load. An equivalent circuit of LTI loads at asymmetrical, but sinusoidal supply voltage is presented as well. This decomposition provides solid fundamentals for defining powers of such loads.

Publication Source (Journal or Book title)

Przeglad Elektrotechniczny

First Page

40

Last Page

47

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