Research on Closed-Loop Control Method of Bidirectional Isolated AC-DC Matrix Converter
According to that the isolated bidirectional AC-DC matrix converter (Isolated AC-DC Matrix Converter, IAMC) has no intermediate capacitor buffer link, there is coupling between the input and output converter control, so this paper proposes a control method of the IAMC two-stage power converter. The direct control of the output current and power of the DC side was realized by the closed-loop control of the full-bridge converter; the three-phase-single-phase matrix converter realized the independent control of the active and reactive power to meet the high-precision control of grid-side power factor . The proposed control strategy effectively reduced the coupling strength of the two-stage converter and ensured the good performance of the system. The simulation was carried out in MATLAB, and the results show that the control method proposed in this paper can improve the power quality of the system, and at the same time, the unit power factor can be adjusted, which verifies the effectiveness and superiority of the proposed control strategy.
bidirectional isolated AC-DC matrix converterpower transferpower factorclosed loop control
万方数据
维普
