一种用于MMC电路快速仿真的离散时域模型

2016 IEEE 8th International Power Electronics and Motion Control Conference (IPEMC-ECCE Asia) Pub Date : 2016-05-22 DOI:10.1109/IPEMC.2016.7512667

Feng Zhang, Xu Yang, Kangping Wang, G. Xu, Lang Huang, Wenjie Chen

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引用次数: 4

摘要

本文提出了一种新的离散时域MMC子模块模型，用于MMC电路的快速仿真。首先，采用修正节点法(MNA)，将SM中的开关替换为带电阻的串联可变电压源。然后对SM模型在形式和数学表达式上进行了简化，以实现快速仿真。其次，详细讨论了这些算法的稳定性。这是因为对SM模型应用不同的数值积分算法会得到不同的差分表达式，这可能会导致稳定性问题。最后，通过与商业仿真软件的对比，用20电平MMC电路验证了该模型的有效性和准确性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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A discrete time-domain model for fast simulation of MMC circuits

In this paper, a novel discrete time-domain MMC Sub Module (SM) model is proposed for fast simulation of MMC circuits. Firstly, by using Modified Nodal Approach (MNA), the switch in SM is replaced by a changeable voltage source in series with a resistor. Then the SM model is simplified in form and mathematics expression for fast simulation. Secondly, stability of these algorithms are discussed in detail. It is because applying various numerical integration algorithms to the SM model will get different difference expressions, which may result in stability problem. Finally, the efficiency and accuracy of the model are validated using a 20-level MMC circuit by comparison with commercial simulation software.

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来源期刊

2016 IEEE 8th International Power Electronics and Motion Control Conference (IPEMC-ECCE Asia)

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