Mode switching coordination control strategy of an electrical energy router for new energy access

被引：0
|
作者：
Ma W. [1 ]
Tai Y. [1 ]
Wang Y. [2 ]
Jiao L. [1 ]
Jin Q. [1 ]
Zhang J. [1 ]
机构：
[1] Institute of New Energy, China University of Petroleum (East China), Qingdao
[2] PetroChina Planning & Engineering Institute, Beijing
来源：
Dianli Xitong Baohu yu Kongzhi/Power System Protection and Control | 2023年 / 51卷 / 18期
基金：
中国国家自然科学基金;
关键词：
coordinated control; electrical energy router; mode switching; modular multi-level converter; power balance;
D O I：
10.19783/j.cnki.pspc.230256
中图分类号：
学科分类号：
摘要：
An electrical energy router (EER) can realize the flexible access of new energy, energy storage and a variety of electrical loads. Coordinated control and operational mode switching are the focus of its operation control. To achieve a smooth transition of the EER operating mode and reduce the switching impact caused by the change of control mode of the bus regulator during that mode switching, the voltage disturbance mechanism during grid-connected and isolated operating mode switching is first analyzed. The influence of power abrupt change in the system and the regulation process of the bus regulator controller on the system is studied. Then, the EER mode switching sequence is designed, and a coordinated mode switching control strategy based on the advance compensation of the controller output of the shift ratio holder and the current holder is proposed. This can achieve real-time port power balance, reduce voltage disturbance in the mode switching transient process, and improve the transient stability of the system. Finally, an EER simulation model is established in Matlab/Simulink simulation software to verify the effectiveness of the proposed control strategy. © 2023 Power System Protection and Control Press. All rights reserved.
引用
收藏
页码：52 / 61
页数：9
相关论文
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