Study on Performance of Non-Linear Reactive Power Compensation by Using Active Power Filter under Load Conditions

Julian Wosik,Marian Kalus,Artur Kozlowski,Bogdan Miedzinski,Marcin Habrych

doi:10.5755/j01.eee.22.1.14098

Abstract

The paper analyses and examines the efficiency of non-linear reactive power compensation when use the active power filter controlled by an algorithm based on the theory of CPC. The developed physical model of 3-phase active filter has been presented and results of its performance in the system so the linear load and nonlinear RL type are discussed. Particular attention was put on its operation in transient conditions. Based on both simulation and investigation results appropriate practical conclusions are formulated. DOI: http://dx.doi.org/10.5755/j01.eee.22.1.14098

Highlights

In modern electric power systems of alternating current there is an urgent need to find ways for optimizing working conditions
Today main problem in electric power systems results from the fact that electric energy is extensively consumed by means of electronics converters
Publication of theory of instantaneous power (IPT) was a first major achievement in this field. It allowed for determination of the currents waveforms compensation neither describes nor explains physical phenomena associated with energy exchange in these circuits. Another important step forward was the theory of the current physical – components (CPC) developed and published in

Summary

INTRODUCTION

In modern electric power systems of alternating current there is an urgent need to find ways for optimizing working conditions. Today main problem in electric power systems results from the fact that electric energy is extensively consumed by means of electronics converters These devices draw deformed currents which can be described by a Fourier series i(t) Io 2 Ih sin ht h ,. Publication (in 1981 [2]) of theory of instantaneous power (IPT) was a first major achievement in this field It allowed for determination of the currents waveforms compensation neither describes nor explains physical phenomena associated with energy exchange in these circuits. Another important step forward was the theory of the current physical – components (CPC) developed and published in. Phase voltage and current as a vector for 3-phase system can be expressed as follows: u ua ub

I h N I hc

Testing System and Measurement Method

Investigated Results under Transient States

CONCLUSIONS