Design of Single-Phase Electrical Spring Based on PR Controller and Critical Load Current Feedback

被引：1
作者：
Wei, Yi [1 ]
Zhao, ChaoHui [1 ]
Duan, YuBin [1 ]
机构：
[1] Shanghai Dianji Univ, Dept Elect Engn, Shanghai, Peoples R China
来源：
JOURNAL OF ELECTRICAL ENGINEERING & TECHNOLOGY | 2022年 / 17卷 / 06期
关键词：
Single-phase electrical spring; Current control; Controller design; Voltage regulation;
D O I：
10.1007/s42835-022-01190-4
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：
According to the characteristics of fast and accurate voltage regulation of single-phase electrical spring (ES), a critical load current feedback control strategy considering grid voltage is proposed. Taking pure resistive loads as an example, the S-domain mathematical model of ES is established. Based on this, the design method is described in detail. Aiming at the voltage fluctuation of power grid affects the regulation precision of ES, the feedforward control of grid voltage is proposed. Through the equivalent transformation of control block diagrams, the feedforward transfer function of grid voltage which can effectively eliminate the influences of grid voltage on the regulation precision of ES is deduced. Finally, the effectiveness and correctness of the proposed control method is verified by experiments.
引用
收藏
页码：3317 / 3328
页数：12
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