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首页> 外文期刊>IEEE Transactions on Industrial Electronics >An Enumeration-Based Model Predictive Control Strategy for the Cascaded H-Bridge Multilevel Rectifier
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An Enumeration-Based Model Predictive Control Strategy for the Cascaded H-Bridge Multilevel Rectifier

机译：级联H桥多级整流器的基于枚举的模型预测控制策略

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摘要

In this paper, a model predictive control strategy is adapted to the cascaded H-bridge (CHB) multilevel rectifier. The proposed control scheme aims to keep the sinusoidal input current in phase with the supply voltage and to achieve independent voltage regulation of the H-bridge cells. To do so, the switches are directly manipulated without the need of a modulator. Furthermore, since all the possible switching combinations are taken into account, the controller exhibits favorable performance not only under nominal conditions but also under asymmetrical voltage potentials and unbalanced loads. Finally, a short horizon is employed in order to ensure robustness; this way, the required computational effort remains reasonable, making it possible to implement the algorithm in a real-time system. Experimental results obtained from a two-cell CHB rectifier are presented in order to demonstrate the performance of the proposed approach.
机译：在本文中，模型预测控制策略适用于级联H桥（CHB）多级整流器。提出的控制方案旨在使正弦输入电流与电源电压同相，并实现H桥单元的独立电压调节。为此，无需调制器即可直接操作开关。此外，由于考虑了所有可能的开关组合，因此控制器不仅在标称条件下而且在非对称电压电势和不平衡负载下均表现出良好的性能。最后，为了确保鲁棒性，采用了较短的视野。这样，所需的计算工作仍保持合理，从而有可能在实时系统中实现该算法。提出了从两节CHB整流器获得的实验结果，以证明所提出方法的性能。

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