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模块化多电平变换器连续降阶模型的局限性与精度分析

Limitations and Accuracy of a Continuous Reduced-Order Model for Modular Multilevel Converters

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中文摘要

本文分析了模块化多电平变换器(MMC)降阶模型的局限性,阐明了其模型精度与运行频率及变换器参数之间的关系。虽然降阶模型简化了MMC的分析并提供了行为洞察,但其精度受多种因素制约。

English Abstract

This paper analyzes the limitations of a reduced-order model for modular multilevel converters (MMCs) by elucidating the relation between its accuracy, operating frequency, and converter parameters. A reduced-order simplifies the analysis of the MMC and thereby may provide additional information about the converter behavior. However, the accuracy of such model depends on several factors. In this p...
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SunView 深度解读

MMC拓扑在大型光伏电站及高压直流输电(HVDC)领域具有重要应用潜力。阳光电源在大型集中式逆变器及储能系统(如PowerTitan系列)中,对变换器的动态响应和控制精度要求极高。本文提出的降阶模型精度分析方法,有助于研发团队在进行大规模并网系统仿真时,在计算效率与控制精度之间取得平衡。建议在开发高压大功率并网设备时,利用该研究优化控制算法的实时性,特别是在弱电网环境下,通过更精准的降阶模型提升系统的稳定性与动态响应能力。