An Improved Current Feedforward Control Strategy for Multi-port Power Electronic Transformer

被引：1
|
作者：
Wang, Zhe [1 ,2 ]
Li, Yaohua [1 ,2 ]
Yuan, Xiaodong [3 ]
Liu, Ruihuang [3 ]
Li, Zixin [1 ,2 ]
Shi, Mingming [3 ]
机构：
[1] Chinese Acad Sci, Inst Elect Engn, Key Lab Power Elect & Elect Drive, Beijing, Peoples R China
[2] Univ Chinese Acad Sci, Beijing, Peoples R China
[3] State Grid Jiangsu Elect Power CO LTD, Res Inst, Nanjing, Peoples R China
来源：
2020 IEEE 9TH INTERNATIONAL POWER ELECTRONICS AND MOTION CONTROL CONFERENCE (IPEMC2020-ECCE ASIA) | 2020年
关键词：
Multi-port power electronic transformer (MP-PET); small signal model; current feedforward control strategy; PWM CONVERTER;
D O I：
10.1109/IPEMC-ECCEAsia48364.2020.9367666
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：
Due to the high energy density and transfer efficiency of Multi-port power electronic transformer (MP-PET), it has attracted extensive application in the hybrid distribution systems. However, the coupling relationship between different ports which could impact the dc bus voltage fluctuation and port stability of the PET during load changes. Thus, this paper establishes a full-order small signal model of MP-PET to analyze the coupling mechanism between different ports. Moreover, according to the interaction mechanism, an improved current feedforward control strategy is proposed which can be used to reduce coupling in the stable region. Adopting this proposed method, the dc bus has a smaller voltage fluctuation compared to the traditional control strategies. Simulation and experimental results show the effectiveness of the proposed control strategy.
引用
收藏
页码：3100 / 3106
页数：7
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