带共模电压抑制的双级矩阵变换器模型预测控制

iming at the negative effects of common-mode voltage for two-stage matrix converter (TSMC), The traditional space vector modulation strategy which needs to analyze instantaneous maximum value of common-mode voltage and develop appropriate rules to adjust the zero vector for inverter stage in each switching cycle, has greater workload and more complex systems. Therefore, a model predictive control for two-stage matrix converter with common-mode voltage suppression was proposed, according to discrete mathematical models and 72 kinds of switching states, the desired switching states are selected by predicting and controlling in each sampling period to track the output current to their references without error and input currents with unity power factor and minimum common-mode voltage. Therefore, the proposed method ensures good performance of input and output for TSMC, while reducing the instantaneous maximum value of common-mode voltage and suppressing its negative effects. The feasibility and validity of the proposed method has been verified by simulation and experimental results.