梅念;尹诗媛;魏争;李珠玲;尹太元;王璋;

• 1:国网经济技术研究院有限公司
• 2:西安交通大学电气工程学院

摘要(Abstract)：

提出了一种基于谐波状态空间(harmonic state-space,HSS)方程的模块化多电平换流器(modularmultilevel converter,MMC)小信号建模方法。这种建模方法考虑了MMC内部谐波(子模块电容电压波动和桥臂环流)的动态特性和相互耦合作用,具有较高的建模精度。并在此模型基础上,利用特征值分析方法对MMC系统的稳定性进行评估。最后,通过与Simulink/MATLAB仿真结果的对比,验证了小信号模型的准确性。同时分析了控制器参数对MMC系统稳定性的影响,可以提高控制系统的设计效率。

关键词(KeyWords)： 模块化多电平换流器(MMC);小信号模型;谐波状态空间(HSS);稳定性分析;建模

Abstract:

Keywords:

基金项目(Foundation): 国家电网公司科技项目(52010118000B)~~

作者(Author): 梅念;尹诗媛;魏争;李珠玲;尹太元;王璋;

Email:

DOI: 10.13335/j.1000-3673.pst.2018.2945

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