Abstract

In this paper, matrix converter fed motor system is studied, which integrates MC and MCM into a single unit, solves the problem of low voltage transfer ratio of MC, reduces the cost and increases the overall efficiency and the equipment ability. The mathematics model of matrix converter fed motor drive system in the static plane based on the fictitious link concept is given. A novel control method for matrix converter fed motor drive system is proposed which allows, under the unity input power factor and the required voltage vectors to implement the direct torque control (DTC). The simulations show that this way combines the advantages of matrix converter with the advantages of DTC.