## Abstract

This paper presents a time domain model for the representation of powers in linear and nonlinear electrical circuits. The model can account, in a physical (or engineering) sense, for "active and reactive powers" as functions of time. The model is based on the time domain decomposition of the instantaneous power p(t) into two components: p(t)=a(t)+ r(t). Where, a(t) represents the instantaneous power consumed by the (linear or nonlinear) load. The information regarding the store/restore process is contained in r(t). In contrast with the traditional frequency domain model in which powers are defined orthogonal (i.e., S^{2} = P^{2} + Q^{2} + D^{2} + ...) and therefore they do not interact with each other, the proposed model permits the interaction of active and re-active powers at every instant. Using the model of the paper we can obtain the instantaneous power needed for compensation of both, wave shape and power factor.

Original language | English (US) |
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Pages (from-to) | 56 |

Number of pages | 1 |

Journal | IEEE Power Engineering Review |

Volume | 19 |

Issue number | 1 |

State | Published - 1999 |

## Keywords

- Definitions of powers
- Nonlinear circuits

## ASJC Scopus subject areas

- Electrical and Electronic Engineering