Apparent power definitions: A comparison study

Abstract

This paper examines the concept of apparent power: It advocates the idea that the apparent power quantifies an ideal situation that represents optimum energy flow conditions not only for the energy supplier, but for the consumers as well. Different apparent power definitions were evaluated based on the simulation of a typical power network that supplies linear and nonlinear loads. The effects of different methods of nonactive power compensation on the power factor, unbalance, harmonic distortion, motor power losses and converters voltage ripple are analyzed. It was concluded that the present apparent power definition needs improvement, a mathematical expression that will favor in equal measure the provider and the user of electric energy.