Control strategy of the converter

The space vector modulation technique, also known as the indirect transformation method and the alternating-direct-alternating equivalent transformation method, is a method based on the space vector transformation, which virtualizes the alternating-alternating transformation into the alternating-direct and direct-alternating transformations so that the popular high-frequency rectification and high-frequency PWM waveform synthesis techniques can be used. The performance of the converter can be greatly improved. Of course, the specific realization of the rectifier and inverter is completed in one step, and the low harmonics are better suppressed, but the control scheme is more complex, and lack of effective dynamic theoretical analysis support. It is a more studied and mature control strategy in the matrix converter, which is more promising. This modulation strategy can control both the output waveform and the input current waveform, can change the input power factor, is the most promising one modulation strategy.