A switched hybrid filter - DVS/green plug for smart grid nonlinear loads

Abstract

The paper presents a Shunt Filter Compensator-FACTS DVS/Green Plug filter/Dynamic Voltage Stabilization device developed by the First Author as a new member of Switched/Modulated Shunt LC Compensation devices for Dynamically Modulating AC Bus Admittance for stabilized and efficient energy transfer utilization, Dynamic Voltage stabilization DVS- for nonlinear loads on smart grid is required as the grid network becomes weak and insecure, especially with new Distributed Generation (DG) interface and use of Wind/Photovoltaic and battery storage systems. The FACTS-DVS/GP is validated using MATLAB-Simulink Digital Simulation Environment varying load and system conditions including open circuit and short circuit fault conditions and load-excursions/ load reductions. The coordinated, multi-regulation, inter coupled dynamic controller scheme ensures the FACTS-DVS/GP device effectiveness in improving system security, energy utilization, power factor, power quality at key AC Buses, while reducing inrush currents and transient over-voltage/switching Recovery Voltage excursions. Hence, improving dynamic voltage stabilization, feeder regulation and power quality/factor enhancement.