POWER QUALITY IMPROVEMENT USING IMPEDANCE NETWORK BASED INVERTER

Amitava Das, Sudipta Bhui, Partha Sarathi Mondal

Abstract: Inverters are suited for applications where DC supply is converted to AC signal with desired waveform & adequate quality of power. Recently proposed Trans Z –source inverters and T –source inverters characterize improved power quality with the help of coupled inductors with turn’s ratio higher than one. This paper presents the concept of LC network based inverter. The built in DC current blocking capacitors connected in series with transformer windings and therefore prevent the transformer core from saturation. The novel LC network based inverter topology proposed in this paper characterize available continuous input current which is the advantage compared to TZSI and TSI. Simulations have been carried out in PSIM platform and results are presented to validate the proposed topology of the inverter system

Keywords: Power quality, LC network, Impedance source inverter, Boost control, Shoot through state

DOI: https://doi.org/10.15623/ijret.2013.0202013