Predictive Current Control Strategy for a Direct Matrix Converter with Modulated Switching Pattern

In spite of the many works presented in recent years related to matrix converters control, there are still several topics not yet addressed in depth. Among all the proposed control techniques, predictive control has emerged as a plausible option and of great versatility for its ability to treat with different requirements. The main problem of the predictive control is that it generates an activation pattern that causes a variable switching frequency for each semiconductor device, creating an imbalance in the useful life of these and above all it causes a high content of harmonics generated at the output of the matrix converter. This work proposes a predictive current control strategy with a very good performance in the reference tracking and total harmonic distortion according to the requirements of international standards. Simulated results confirm the feasibility of the proposal demonstrating that it is an alternative to classical predictive control strategies.