Design Of High Attenuation and Less Damping Filter for Renewable Energy Source with Parallel Lrc Component

Abstract

Photovoltaic (PV) panel produces a DC voltage as output which is always having random variations which is further required to convert into a constant DC voltage output, a Voltage Source Inverter (VSI) is the required and further another DC to AC VSI convertor required. VSI used Pulse width modulation (PWM) for switching of metal Oxide semiconductor Field Effect Transistor (MOSFET) and a very fast switch cause harmonics in the circuits, which further need to remove by filters. The available filters are good but reducing either the overall efficiency by 2-3 percentage or giving high damp at resonant frequency. that issue must be resolve, proposed work has come up with a new design in which Parallel LCL-R (PLCL-R) type filter which has high efficiency and high attenuation than previous and better response at high frequencies. Proposed design is been developed with help of Matrix laboratories (MATLAB) Simulink design, where power electronics component tool box 'sim-electronics and sim-escape' used. The results of proposed work found better then LCL filter, TRAP filter and other filters of base works.