A Novel Multi-Loop Control Strategy for PWM Converter Based on LCL Filter

被引：0
|
作者：
Zhang, Hao [1 ]
Wang, Luyang [1 ]
Yang, Xingwu [1 ]
Bai, Yang [2 ]
机构：
[1] Shanghai Univ Elect Power, Dept Elect Power Engn, Shanghai, Peoples R China
[2] State Grid Shanghai Municipal Elect Power Co, Dev Planning Dept, Shanghai, Peoples R China
来源：
2014 INTERNATIONAL ELECTRONICS AND APPLICATION CONFERENCE AND EXPOSITION (PEAC) | 2014年
基金：
中国国家自然科学基金;
关键词：
PWM rectifier; LCL filter; multi-loop control structure; active damping;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A three-phase voltage source PWM rectifier(VSR) has some shortcomings that can lead to resonance, resulting in system instability problems. A novel multi-loop control strategy and a design of the control structure in synchronous coordinate system for LCL-VSR is proposed in this paper to solve the problem. The strategy belongs to active damping control, which introduces the filter capacitor current-loop feedback control on the basis of the traditional double-loop control system. The strategy increases the system equivalent damp which effectively inhibited the LCL filter resonance, thus ensure the stability of the system. The proposed strategy system was simulated by using the toolbox of Matlab/Simulink. Finally, the feasibility and effectiveness of the proposed method was verified by simulation results.
引用
收藏
页码：1282 / 1285
页数：4
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