A Novel DC Voltage and Reactive Power Balance Control Strategy for Cascaded H Bridge Rectifier

被引：0
|
作者：
Pan H. [1 ]
Zhu H. [1 ]
Xiao Z. [1 ]
Zhu M. [1 ]
Long H. [1 ]
Liu Y. [1 ]
机构：
[1] School of Information Engineering, Xiangtan University, Xiangtan, 411105, Hunan Province
来源：
Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering | 2017年 / 37卷 / 12期
基金：
中国国家自然科学基金;
关键词：
Cascaded H bridge rectifier (CHBR); Coupling effect; DC voltage balance; Duty cycle; Reactive power balance;
D O I：
10.13334/j.0258-8013.pcsee.161132
中图分类号：
学科分类号：
摘要：
In order to solve the problem of the unbalance of cascaded H bridge rectifier (CHBR) dc voltage, realize the balance of the H bridge dc voltage and reactive power, and eliminate the coupling effect between the voltage balance controller and the basic double-loop controller, a new kind of control strategy which consists of dc voltage and reactive power balance was proposed. The method was achieved by amending active duty cycle and reactive duty cycle on the basis of certain relationship, which could also balance the voltage of the dc and the reactive power balance H bridge even under the condition of unbalanced load and could eliminate the coupling effect between the basic double-loop controller and the voltage balance controller at the same time. The paper also analyzed the stability of the system with the proposed balanced controller and discussed its effective range. At last, the simulation and experiments verified the feasibility of the method. © 2017 Chin. Soc. for Elec. Eng.
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收藏
页码：3565 / 3573
页数：8
相关论文
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