ANPC Three-level Model Predictive Control Strategy Without Weight Factor

Model predictive control (MPC) is a promising multilevel control method, has developed very well in recent years
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. On the other hand, the MPC calculation amount is very large, and the need of calculation speed of the system is very high. In the three-phase three-level inverter, due to the weight factor, the calculation load is larger and the control is more complicated. This paper proposes a fast algorithm that does not require weighting factors and uses positive and negative small vectors to control the neutral point voltage, reducing 27 voltage vectors to 21 voltage vectors. This algorithm eliminates the calculation and debugging process of weight factors. Improved the portability of the algorithm. Simulation proves the effectiveness of the algorithm.