Abstract:
This paper presents the three phase DC-AC inverter mainly used in high power application such as induction motor, air-conditioner and ventilation fans, in industries in solar power plants. The three phase inverters re commonly used to supply three-phase loads by means of separate single-phase inverters. It is a voltage controller. This model mainly demonstrates a DC-AC converter. The three leg MOSFET operated inverter is constructed. It can be used to demonstrate the relationship of input DC, modulation index, filter selection and switching frequency third harmonic injection features. The simulation results has been carried out by MATLAB/ simulink.

Keywords: DC-AC converter, VSI, LC filter, Three phase bridge converter, 3 leg MOSFET