介绍了高频链矩阵整流器(HFLMR)的双极性电流空间矢量调制算法,提出了一种新型的两步换流方法,该方法无需输出电流方向的硬件检测电路,提高了换流过程的可靠性,降低了成本。提出了基于d-q坐标系的HFLMR闭环控制策略,能在宽负载变化范围内获得单位功率因数控制、高质量的输入电流和输出电压/电流。仿真结果验证了控制策略的正确性和有效性。
The B-C-SVM(Bipolar Current Space Vector pulse width Modulation) algorithm applied in HFLMR (High Frequency Link Matrix Rectifier) is introduced and a two-step commutation strategy is proposed, which does not need the hardware detection circuits of output current direction,resulting in higher reliability and lower cost. The strategy of HFLMR closed-loop control based on d-q coordinates system is established to achieve the unity power factor control,high-quality input current and high-quality output current/voltage within wide load variation range. Simulative results show the correctness and effectiveness of the proposed strategy.