Predictive current control with reactive power minimization in an indirect matrix converter

This investigation presents a current control method for an indirect matrix converter. The method, called predictive current control selects the switching state that minimizes the error in the output currents according to their reference values and, at the same time, the control scheme is enhanced by including a reactive power minimization strategy with the goal to have unity power factor in the input side. The control objectives are accomplished by using a prediction horizon of one sample time and a very intuitive control law. The proposed control scheme is validated trough simulation results where it is shown that the predictive approach can be implemented simply with a good tracking of the output current to their references and input currents with unity power factor.