南方电网技术2017，Vol.11Issue(9)：16-22,7.DOI:10.13648/j.cnki.issn1674-0629.2017.09.003
三相模块化多电平换流器动态相量谐波分析模型
Harmonic Analysis Model of Three-Phase Modular Multilevel Converter Based on Dynamic Phasors
邱杨鑫 1钟庆 1洪潮 2陈雁 2王钢1
作者信息
- 1. 华南理工大学电力学院, 广州510640
- 2. 直流输电技术国家重点实验室(南方电网科学研究院), 广州510663
- 折叠
摘要
Abstract
Based on the topology structure of modular multilevel converter ( MMC) , the internal bridge arm current and the sub-mod-ule capacitor voltage are taken as the object of study, by introducing the average switching function, the time domain model under nea-rest level approximation modulation of MMC is deduced, and then the model is expanded to a dynamic phasor harmonic analysis model so as to obtain the steady-state harmonic components of MMC at AC and DC side.Then, the simulation model of MMC is built in Matlab/Simulink, and the harmonic analysis is carried out by FFT to verify the correctness of the established harmonic analysis model. Finally, the interaction between AC and DC harmonics is analyzed according to the model.The model can provide a theoretical refer-ence for designing MMC filters or studying their harmonic suppression techniques.关键词
模块化多电平换流器/动态相量/谐波Key words
modular multilevel converter ( MMC)/dynamic phasor/harmonic分类
信息技术与安全科学引用本文复制引用
邱杨鑫,钟庆,洪潮,陈雁,王钢..三相模块化多电平换流器动态相量谐波分析模型[J].南方电网技术,2017,11(9):16-22,7.
