Arm energy control strategy of modular multilevel converter based on model predictive control

被引：0
|
作者：
Lin H. [1 ]
Wang Z. [1 ]
机构：
[1] School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai
来源：
Dianli Zidonghua Shebei/Electric Power Automation Equipment | 2018年 / 38卷 / 04期
基金：
中国国家自然科学基金;
关键词：
Arm energy; Circulating current; Control strategy; Model predictive control; Modular multilevel converter;
D O I：
10.16081/j.issn.1006-6047.2018.04.007
中图分类号：
学科分类号：
摘要：
Existing control strategies of MMC(Modular Multilevel Converter) mostly use given submodule capacitor voltage reference,which can not control the capacitor voltage of different arms separately. An arm energy control strategy for MMC based on model predictive control is proposed,which introduces common-mode and differential-mode component control of the arm energy to realize flexible control of the capacitor voltage of each arm. The model predictive controllers of phase current and circulating current are designed based on the transient mathematical model of MMC and the current error feedback receding horizon optimization is introduced,realizing the decoupling control of external phase current and internal circulating current effectively and making the circulating-current controller realize the characteristics of circulating-current restraining and circulating-current injection,and it is not sensitive to parameters of the system. Simulative results verify the validity and effectiveness of the proposed control stra-tegy. © 2018, Electric Power Automation Equipment Press. All right reserved.
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页码：44 / 51
页数：7
相关论文
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