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Modulated Model Predictive Control for a Seven-Level Cascaded H-Bridge Back-to-Back Converter

机译:七级级联H桥回倒回转换器的调制模型预测控制

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摘要

Multilevel Converters are known to have many advantages for electricity network applications. In particular Cascaded H-Bridge Converters are attractive because of their inherent modularity and scalability. Predictive control for power converters is advantageous as a result of its applicability to discrete system and fast response. In this paper a novel control technique, named Modulated Model Predictive Control, is introduced with the aim to increase the performance of Model Predictive Control. The proposed controller address a modulation scheme as part of the minimization process. The proposed control technique is described in detail, validated through simulation and experimental testing and compared with Dead-Beat and traditional Model Predictive Control. The results show the increased performance of the Modulated Model Predictive Control with respect to the classic Finite Control Set Model Predictive Control, in terms ofcurrent waveform THD. Moreover the proposed controller allows a multi-objective control, with respect to Dead-Beat Control that does not present this capability.
机译:已知多级转换器对电网应用具有许多优点。特别是级联的H桥转换器由于其固有的模块化和可扩展性而具有吸引力。由于其对离散系统和快速响应的适用性,电力转换器的预测控制是有利的。本文采用了一种新的控制技术,称为调制模型预测控制,旨在提高模型预测控制的性能。所提出的控制器作为最小化进程的一部分地址调制方案。通过模拟和实验测试验证了所提出的控制技术,并与死区节拍和传统模型预测控制进行了验证。结果表明,在多电流波形THD方面,调制模型预测控制对经典有限控制集模型预测控制的性能提高。此外,所提出的控制器允许多目标控制,相对于未呈现这种能力的死区搏动控制。

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