Frontiers in Energy Research | |
High-precision bus voltage control based on NLESO and TSMC predicted load current and grid voltage differential feedforward | |
Energy Research | |
Zhi Zhang1  Jigang Yao2  Liangliang Wang2  Shoumo Wang2  Di Xie3  Longyun Kang3  | |
[1] Department of Electrical Engineering and Automation, Dongguan University of Technology, Dongguan, China;Guangdong HYNN Technologies Co., Ltd, Dongguan, China;New Energy Research Center, School of Electric Power, South China University of Technology, Guangzhou, China; | |
关键词: power battery test equipment; AC/DC; DC bus voltage controller; ESO; second order differential feed-forward; | |
DOI : 10.3389/fenrg.2022.1009981 | |
received in 2022-08-02, accepted in 2022-09-14, 发布年份 2023 | |
来源: Frontiers | |
【 摘 要 】
Power battery test equipment is widely used to produce and test new energy vehicles and storage containers. To address the problem of DC bus voltage fluctuations that affect the accuracy of output voltage and current, a high-accuracy bus voltage control strategy is based on nonlinear extended state observation (NLESO) and terminal silding mode controller (TSMC) load current estimation. Simulation and experimental results show that the control strategy has a good suppression effect on the DC bus voltage fluctuation and can effectively improve the accuracy of the DC side output voltage and current. Grid voltage differential feedforward is adopted, which can achieve fast suppression of DC bus voltage fluctuations in power battery test equipment and meet the high precision output requirements of the system DC bus.
【 授权许可】
Unknown
Copyright © 2023 Xie, Wang, Zhang, Wang, Kang and Yao.
【 预 览 】
Files | Size | Format | View |
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RO202310108791224ZK.pdf | 5938KB | download |