Improvement of Power Factors in Integrated Grid Based Power Systems Using Filter Concepts

Abstract

In this paper, the Power Quality (PQ) improvement in power electronics based systems using different types of active power filters is presented. In any integrated electrical power system/power electronic system, the harmonics caused by highly non-linear switching devices degrades the system’s performance when switching of the linear or non-linear load takes place. Harmonics are thus crucial to investigate further, and we must create some algorithms/strategies for their suppression, particularly in integrated power systems, and eventually to protect the apparatus. In a nutshell, harmonics play a critical role in the successful operation of any piece of equipment. If the harmonics are not taken care of properly, then it may lead to the output distortion & further adds to the reliability, safety of the systems. Harmonic distortion is an undesirable effect for electrical, electronic & instrumentation based systems. With the increasing use of solid state equipment’s, harmonic distortion in supply systems becomes more frequent and severe due to non-linear characteristic of such switching circuits.