Experimental on Stability of a Combination of Input and Output Controls for a Matrix Converter with a Generator and a Motor

Abstract

This paper discusses a combination of input and output controls for a matrix converter with a generator and a motor. When an input stability control and an output current control are applied independently, the operation of the matrix converter becomes unstable because the controllers interfere with each other. As a solution to this problem, this paper proposes an output current control that includes a damping factor for input filter oscillation. In this paper, the stability of the proposed control is discussed using root locus analysis on a single phase equivalent circuit of the matrix converter. In addition, this study confirms the validity of the proposed control for a matrix converter with a generator and a motor through simulation and experimental results.