Constrained optimal control of three-phase AC-DC boost converters

The paper deals with constrained optimal control of three-phase voltage source converters (VSC), based on a mathematical model developed in the synchronous reference frame. The performance of the current controller determines the overall performance of the system. As a consequence, a well defined control strategy is needed, which must handle the constraints. Taking into account the limits of the d-q currents, an explicit model predictive controller was designed, moving the computation effort off-line. The resulting controller´s online computation needs are reduced. Simulation and experimental results are presented.