An Enhancement of power quality by using fuzzy logic controller for typical household applications

Volume 4 Issue 4 September - November 2016

Research Paper

An Enhancement of power quality by using fuzzy logic controller for typical household applications

A.Purushotham* , Vishnuvardhan**

* PG Scholar, Department of Electrical and Electronics Engineering, Sri Venkateswara College of Engineering and Technology (Autonomous), Andhra Pradesh, India.

** Associate Professor, Department of Electrical and Electronics Engineering, Sri Venkateswara College of Engineering and Technology (Autonomous), Andhra Pradesh, India.

Purushotham, A., and Vishnuvardhan (2016). An Enhancement of power quality by using fuzzy logic controller for typical household’s applications. i-manager’s Journal on Circuits and Systems, 4(4), 19-32. https://doi.org/10.26634/jcir.4.4.12395

Abstract

This paper proposes a transformerless hybrid series active filter which is connected to a single phase distribution feeder. This system uses a sliding mode controller and filtering techniques to reduce voltage and current harmonics for a typical nonlinear load (VSC). The reactive power compensation is done by injecting sag, swell, and distortions at grid side of Point Common Coupling (PCC). In the existing methods to compensate harmonics, PI controllers were to control DC link voltage, there maybe presence of some amount of steady state error and also this PI controller may not work under continuous condition mode. So the authors have opted for Fuzzy Logic Controller (FLC) technique to improve steady state error and the system performance should be improved by reducing the harmonics. Both the existing PI based and fuzzy based controllers’ results are compared and are shown on Matlab/simulink.