Analysis of conventional inverter topologies for High voltage distribution system in shunt applications

This paper analyzes the different conventional voltage source inverter (VSI) topologies for High voltage distribution system to realize Distribution Static Compensator (DSTATCOM). The reference currents are extracted through instantaneous symmetrical component theory. To check the performance of DSTATCOM for high voltage distribution system, different inverter topologies are implemented under unbalanced and non-linear load conditions. The purpose of shunt compensator is to balance the load, as well as make the supply side currents sinusoidal with unity power factor. Considering the benefits of Hysteresis current control pulse width modulation (PWM), it is used to generate the gating signals for all the inverter topologies. The performances of DSTATCOM using various inverter topologies for the high voltage distribution system are discussed, while their comprehensive comparative evaluations done using MATLAB environment.