模块化多电平变换器的简化模型研究

2016 IEEE 8th International Power Electronics and Motion Control Conference (IPEMC-ECCE Asia) Pub Date : 2016-07-14 DOI:10.1109/IPEMC.2016.7512666

Jiayun Xu, Chenlei Bao, Zhen Yang, M. Cao

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引用次数: 1

摘要

本文介绍了一种基于数学函数的模块化多电平变换器(MMC)稳态和动态特性的简化模型。MMC中的大量开关为电磁瞬变仿真程序带来了计算挑战，因为它非常耗时。该模型降低了系统导纳矩阵的阶数，导出了基于电容电压平衡策略的桥臂等效函数。仿真结果表明，简化模型的瞬态和稳态响应与详细模型吻合较好。该简化模型的有效性得到了验证，为高层MMC系统的分析提供了一种方法。

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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Research on the simplified model of Modular Multilevel Converters

This paper introduces a novel simplified model based on mathematical functions for modeling the steady-state and the dynamic behavior of Modular Multilevel Converter (MMC). The large number of switches in MMC creates a computational challenge for electromagnetic transient simulation programs, as it is extremely time consuming. The proposed model decreases the order of system's admittance matrix and derives an equivalent function of bridge arm based on capacitor voltage balancing strategy. Simulations are carried out which shows that both the transient and steady-state response of the simplified model well match that of the detailed one. The simplified model is validated to be effective and provides a method for analyzing high level MMC systems.

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

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