Passivity-based control for current of input side in matrix convertor
矩阵变换器输入电流的无源性控制

Because there is no DC loop in the matrix converter, a matrix convert is sensitive to the disturbance in the grid voltage and the disturbance of the load. To deal with this problem, we develop a passivity-based controller in the input side, and introduce an appropriate damping to the control loop to improve the characteristics of the matrix converter. Besides, the structure of the control system is simplified by reducing the model-order, facilitating the implementation of the controller. Simulation results show that the input current maintains the sinusoidal waveform under the disturbances in input voltage and from the load, thus causing no pollution to the grids.