Indirect model predictive control with imposed sinusoidal source currents for a Direct Matrix Converter Working at fixed switching frequency

In this paper a simple indirect model predictive current control strategy is proposed for the control of both input and output currents in a direct matrix converter. This simplified strategy reduces the computational cost while avoiding the use of weighting factors. The method is based on the fictitious dc-link concept, which has been used in the past for the classical modulation and control techniques of this converter. The proposal is enhanced with a fixed switching predictive strategy in order to improve the performance of the full system. Simulated results confirm the feasibility of the proposal demonstrating that it is an alternative to classical predictive control strategies.