Model predictive control strategy for multi-phase thyristor matrix converters — Advantages, problems and solutions
Model predictive control strategy for multi-phase thyristor matrix converters — Advantages, problems and solutions
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DOI：
10.1109/epe.2016.7695350
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发表时间：
2016-09
期刊：
影响因子：
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通讯作者：
Michael Leuer;Michael Lonneker;J. Bocker
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文献类型：
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作者：
Michael Leuer;Michael Lonneker;J. Bocker
研究了一种采用模型预测控制（MPC）的27- 3相晶闸管矩阵变换器。与标准方法相比，MPC考虑的是耦合的整体系统。因此，要考虑所有273 = 19683开关状态。与传统控制相比，MPC策略的结果是大幅降低了换相频率和转换器损耗。然而，MPC在晶闸管矩阵变换器中的应用除了具有这些优点外，还存在一些问题。因此，本文提出了标准直接模型预测控制策略的扩展，以克服这些问题。其结果是一个预测控制结构，为有问题的工作区域提供了一个退路。通过这种方法，可以实现低总谐波失真（THD）和高效率。
A 27-to-3-phase thyristor matrix converter using a model predictive control (MPC) is considered. Compared to the standard method the MPC considers the coupled overall system. Due to this, all 273 = 19683 switching states are to be considered. The result of the MPC strategy is, compared to classical control, a drastic reduction of the commutation frequency and respectively the converter losses. However, besides the advantages there are still some problems with the use of MPC for thyristor matrix converter. Therefor this contribution presents extensions of the standard direct model predictive control strategy to overcome these problems. The result is a predictive control structure with a fallback level for problematic working areas. By this, a low total harmonic distortion (THD) as well as a high efficiency can be achieved.