PUBLICATIONS

This paper presents a control method for reducing current distortion in an indirect matrix converter (IMC) operating in boost mode under unbalanced input conditions. The IMC operating in boost mode is useful in distributed generation (DG) systems. It is connected with renewable energy system (RES) and the grid to transmit the power generated by the RES. However, under unbalanced voltage conditions of the RES, which is connected input stage of the IMC operating in boost mode, the input and output currents of that are distorted. Especially, the distortion of the output currents causes a ripple of the power, which is transmitted to the grid, and it aggravates the reliability and stability of the DG system. Therefore, in this paper, the control method using positive and negative sequence voltages and currents is proposed for reducing current distortion of both side in the IMC operating in boost mode. Simulation and experimental results have been presented to validate effectiveness of the proposed control method.