A robust fuzzy logic controller for a Green Plug-switched filter for nonlinear loads

The paper presents a robust l switched tuned arm filter and Capacitor compensation (SFC) scheme for single-phase voltage stabilization and efficient energy utilization. The novel Modulated filter-capacitor compensator MF-SFC developed by the Second Author is controlled and improves the power factor at the source and enhance power quality by reducing current harmonic contents. The FACTS based MF-SFC Device is a member of the family of Green Plug /Filters/Compensation Schemes used for efficient energy utilization, power quality enhancement and voltage/inrush current/soft starting control using a novel tri-loop dynamic error driven fuzzy logic controller (FLC). Matlab/ Simulink Models are used to validate the new FACTS based Green Plug-SFC scheme with a simple Fuzzy Dynamic Gain Controller for effective power quality (PQ) to reduce transient inrush currents and voltage fluctuations at load bus. This is done using a dynamic pulsing scheme of the modulated/ switched filter compensator allowing the filter to cope with dynamic and varying conditions in the nonlinear load.