Novel improvements for matrix converter fed adjustable speed drive system

Yang Mei^*, Kai Sun, Daning Zhou, Lipei Huang, and Xuansan Cai

Matrix converter (MC) is a direct energy conversion device with high input power factor and regeneration capability. As a device without dc link elements, it possesses a series of properties different from traditional AC-DC-AC converters, which are the objects of research. In this paper, a novel power device application and high performance control for a matrix converter fed induction motor drive system, as well as the behavior the MC drive under abnormal input voltage conditions, have been investigated. A 3-3 MC prototype using the newly developed IGBT with reverse blocking capability (RB-IGBT) is constructed; a control strategy to combine space vector modulation and vector control technique for matrix converter fed induction motor drive system is proposed; two compensation methods are proposed to improve the output performance of MC and ensure the drive performance of induction motor under abnormal input voltage conditions. The effectiveness and feasibility of the proposed improvement have been proven through numerical simulations and experimental tests.