Adaptive-Fuzzy Controller Based Shunt Active Filter for Power Line Conditioners
Abstract: This paper presents
a novel Fuzzy Logic Controller (FLC) in conjunction with Phase Locked Loop
(PLL) based shunt active filter for Power Line Conditioners (PLCs) to improve
the power quality in the distribution system. The active filter is implemented
with current controlled Voltage Source Inverter (VSI) for compensating current
harmonics and reactive power at the point of common coupling. The VSI gate
control switching pulses are derived from proposed Adaptive-Fuzzy-Hysteresis
Current Controller (HCC) and this method calculates the hysteresis bandwidth
effectively using fuzzy logic. The
bandwidth can be adjusted based on compensation current variation, which is
used to optimize the required switching frequency and improves active filter
substantially. These shunt active power filter system is investigated and
verified under steady and transient-state with non-linear load conditions. This
shunt active filter is in compliance with IEEE 519 and IEC 61000-3 recommended
harmonic standards.
Keywords: active power filter,
adaptive-fuzzy, current controller, power line conditioners, power quality
Author: Karuppanan
PitchaiVijaya, KamalaKanta Mahapatra
Journal Code: jptkomputergg110027
