Matrix Converter Control Strategy Maximizing Reactive Power Transfer

This paper presents an approach that formalizes and simplifies the process of forming the duty-cycle matrix of the matrix converter. This is achieved assigning of the appropriate transfer ratio with respect to the reactive component of the input current matrix converter and definition the zero component of the duty-cycle space vectors. Features of the matrix converter control with maximum achievable range of the input reactive power for the specified operating point are considered. Generalized analysis based on a vector representation of switching functions is carried out. The corresponding modulation strategy and algorithm of the direct control of the input reactive power by setting the duty-cycle components of the space vectors while maintaining the greatest possible range of output voltage adjustment are proposed. The simulation results are presented.