A Study on Design and Dynamics of Voltage Source Inverter in Current Control Mode to Compensate Unbalanced and Non-linear Loads

In this paper, a design of the voltage source inverter (VSI) in a hysteresis band current control mode is presented. A proper selection of VSI parameters is necessary to track the desired reference currents at the point of the common coupling to compensate unbalanced and non-linear loads. In this paper, the authors carry out a detailed study on the design parameters and dynamics of the VSI while tracking a reference compensator current. A simulation of three-phase, four-wire compensated system is carried out using PSCAD 4.2.0 to verify the proposed design methods.