Intelligent Controller for Shunt Active Power Filter to Improve Power Quality

Abstract:

This paper presents a comparative study on performance of conventional PI controller and fuzzy controller on three phase, three wire voltage source inverter based shunt active filter that is used to compensate the harmonics currents drawn by non-linear loads in distribution systems. Hysteresis PWM method is used to generate the pulses to the switches used in active filter. The compensation is based on PLL method of fundamental current extraction. The nonlinear load taken into account is a three phase diode bridge rectifier.

• Periodical: Applied Mechanics and Materials (Volume 573)
• Pages: 40-45
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.573.40
• Online since: June 2014
• Authors: S.S. Lalitha Maheswari*, V. Revathi, S. Muralidharan
• Keywords: Active Power Filter (APF), Current Harmonics, Fuzzy Logic Controller, Hysteresis Pulse Generation, PI Controller, PLL Method, Shunt Active Filter, THD, Voltage Source Inverter

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