Yeongsu Bak and Kyo-Beum Lee, "Constant Speed Control of a Permanent Magnet Synchronous Motor Using a Reverse Matrix Converter under Variable Generator Input Conditions," IEEE Journal of Emerging and Selected Topics in Power Electronics, vol. 6, no. 1, pp > Paper

This paper proposes a control strategy for a permanent-magnet synchronous motor (PMSM) fed by an indirect matrix converter

(IMC) operating in boost mode. In order to increase the voltage transfer ratio of the IMC, a structure of the IMC having the inverse

direction of power flow is adopted, which is called a reverse matrix converter (RMC). This structure operates in boost mode without

additional elements or circuits. In this paper, although a generator having variable conditions is used for the input stage of the RMC

system, the PMSM of the output stage can be controlled to a constant speed through the proposed control strategy. The validity of

the proposed control strategy is demonstrated by simulation and experimental results.