Multi-Mode Model Predictive Control Strategy for the Four-Switch Buck-Boost Converter

被引：0
|
作者：
Wu Y. [1 ]
Wang W. [1 ]
Zeng G. [1 ]
Wu X. [1 ]
Tang F. [1 ]
机构：
[1] National Active Distribution Network Technology Research Center, Beijing Jiaotong University, Beijing
来源：
Diangong Jishu Xuebao/Transactions of China Electrotechnical Society | 2022年 / 37卷 / 10期
关键词：
Four-switch Buck-Boost; Mode switching; Model predictive control; Multiple operating modes;
D O I：
10.19595/j.cnki.1000-6753.tces.210654
中图分类号：
学科分类号：
摘要：
The four-switch Buck-Boost converter can operate in multiple operating modes, which is suitable for wide voltage range conversion occasions. How to choose a suitable operating mode and achieve smooth mode switching is the key issue to be solved. In this paper, a multi-mode model predictive control (MPC) strategy for the four-switch Buck-Boost converter was proposed. According to the voltage conversion requirements, four operating modes of the converter were determined. On the basis of the traditional Buck and Boost modes, two extended modes were adopted to eliminate the control dead zone that existed in the Buck and Boost modes when the input voltage was close to the output voltage. The predictive mechanism of the model predictive control method was used to realize the predictive current control of each operating mode, and at the same time, the most suitable operating mode was selected according to the duty cycle prediction results of different operating modes in the next control cycle. Simulation and experimental results demonstrate that the proposed control strategy can effectively select the most suitable operating mode of the four-switch Buck-Boost converter and achieve smoother mode switching, and has better dynamic response performance. © 2022, Electrical Technology Press Co. Ltd. All right reserved.
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页码：2572 / 2583
页数：11
相关论文
共 24 条
  • [1] Yang Meihui, Zhou Niancheng, Wang Qianggang, Et al., Unbalanced voltage control strategy of bipolar DC microgrid based on distributed cooperation, Transactions of China Electrotechnical Society, 36, 3, pp. 634-645, (2021)
  • [2] Liu Yancheng, Zhuang Xuzhou, Zhang Qinjin, Et al., A virtual current-frequency droop control in DC microgrid, Transactions of China Electrotechnical Society, 36, 8, pp. 1693-1702, (2021)
  • [3] Wang Chaoqiang, Cao Taiqiang, Guo Xiaoying, Et al., Dynamic dormancy control strategy of three-phase staggered parallel bidirectional DC-DC converter, Transactions of China Electrotechnical Society, 35, 15, pp. 3214-3223, (2020)
  • [4] Li Youxin, Wu Peng, Liu Jianbin, Et al., An improved control strategy of four switch Buck-Boost converter, Electric Drive, 50, 8, pp. 33-38, (2020)
  • [5] Zhou Zongjie, Li Haiyan, Wu Xinke, A constant frequency ZVS control system for the four-switch Buck-Boost DC-DC converter with reduced inductor current, IEEE Transactions on Power Electronics, 34, 7, pp. 5996-6003, (2019)
  • [6] Wu K C, Wu H H, Wei C L., Analysis and design of mixed-mode operation for non-inverting Buck-Boost DC-DC converters, IEEE Transactions on Circuits & Systems II Express Briefs, 62, 12, pp. 1194-1198, (2015)
  • [7] Jia Leilei, Sun Xiaofeng, Zheng Zhiwen, Et al., Multimode smooth switching strategy for eliminating the operational dead zone in noninverting Buck-Boost converter, IEEE Transactions on Power Electronics, 35, 3, pp. 3106-3113, (2020)
  • [8] Yan Xiangwu, Wang Yang, Ge Xiaofeng, Et al., Dual-loop control with input voltage feedforward for dual-switch Buck-Boost converter, Electric Power Automation Equipment, 36, 10, pp. 65-70, (2016)
  • [9] Ren Xiaoyong, Ruan Xinbo, Li Mingqiu, Et al., Dual edge modulated four-switch Buck-Boost converter, Proceedings of the CSEE, 29, 12, pp. 16-23, (2009)
  • [10] Zhang Guidong, Yuan Jun, Yu S S, Et al., Advanced four-mode-modulation-based four-switch non-inverting Buck-Boost converter with extra operation zone, IET Power Electronics, 13, 10, pp. 2049-2059, (2020)
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