Enhancement of Power Quality Using PI and Fuzzy Logic Controller Based Multilevel UPQC

M. S. Sujatha*, K. Venkateswarlu**
* Professor, Department of EEE, Sree Vidyanikethan Engineering College, Tirupati, Andhra Pradesh, India.
** Assistant Professor, Department of EEE, Vignan Institute of Science and Technology, Hyderabad, India.
Periodicity:February - April'2015
DOI : https://doi.org/10.26634/jic.3.2.3534

Abstract

The power quality has become an important issue in recent years. The aim of this paper, is regulation of source voltage at the distribution side under voltage sag as well as harmonics. The Unified Power Quality Conditioner (UPQC) provides combined features of both series and shunt Active Power Filters (APFs). The cascaded multilevel inverter with sinusoidal switching scheme is employed for low Total Hormonic Distortion (THD) in the output. The UPQC controller is designed based on synchronous dq0 transformation. In this paper, the UPQC performance with Proportional Integral (PI) controller and fuzzy logic controllers under sag and harmonics are analyzed in MATLAB environment.

Keywords

Power Quality, Active Power Filter, UPQC, Dq0 Transformation, PI Controller, Fuzzy Logic Controller

How to Cite this Article?

Sujatha, M.S., and Venkateswarlu, K. (2015). Enhancement of Power Quality Using PI and Fuzzy Logic Controller Based Multilevel UPQC. i-manager’s Journal on Instrumentation and Control Engineering, 3(2), 1-9. https://doi.org/10.26634/jic.3.2.3534

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