A general approach for the analysis of the input power quality in matrix converters

In this paper a general approach based on a linearized analysis is employed in order to determine the matrix converter performance in terms of input current quality. Considering input disturbances such as voltage unbalance and voltage distortion it is possible, by this method, to evaluate analytically the input current harmonic content. It is emphasised that the input current frequency spectrum is affected by the input current modulation law employed. By using appropriate modulation techniques it is possible to compensate or reduce the input current harmonic content. Some numerical results are given to confirm the analytical solutions.