四管Buck-Boost变换器的改进型三模式变频软开关控制策略

doi:10.19595/j.cnki.1000-6753.tces.201549

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Abstract

The four-switch Buck-Boost converter has the advantages of fewer passive components, low voltage stress of switches, the same polarity of input voltage and output voltage, and more freedom of control. And it is very suitable for pre-regulators with wide input voltage. In this paper, an improved three-mode control strategy is proposed to optimize the intermediate mode of the traditional three-mode control, which can reduce the conduction loss and improve the efficiency of FSBB. To further increase power density and reduce the switching loss and electromagnetic interference caused by high-frequency hard switching, this paper proposes a variable frequency control strategy to achieve soft switching in the full voltage range. Analysis shows that the improved three-mode control can optimize the frequency conversion range, so it has a good fit with the variable frequency soft switching control. A prototype with input 80~160V and output 125V/300W was developed in the laboratory to verify the correctness of the proposed control strategy. Through efficiency comparison and loss analysis, it is proved that the proposed control strategy is beneficial to FSBB to achieve high efficiency and high power density.

Key words： Four-switch Buck-Boost improved three-mode control variable frequency control soft switching inductive current

Received: 23 November 2020

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TM46

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	Articles by authors
	Fang Tianzhi
	Wang Yuan
	Zhang Huili
	Zhang Yu
	Sheng Shuheng
	Lan Jianyu

Cite this article:

Fang Tianzhi,Wang Yuan,Zhang Huili等. An Improved Three-Mode Variable Frequency Control Strategy Based on Four-Switch Buck-Boost Converter[J]. Transactions of China Electrotechnical Society, 2021, 36(21): 4544-4557.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.201549 OR https://dgjsxb.ces-transaction.com/EN/Y2021/V36/I21/4544

[1] 刘俊峰, 胡仁俊, 曾君. 一种非隔离交错工作的高降压比DC-DC功率变换器[J]. 电工技术学报, 2018, 33(20): 4763-4770.
Liu Junfeng, Hu Renjun, Zeng Jun.A non-isolated interleaved step-down DC-DC converter with high ratio[J]. Transactions of China Electrotechnical Society, 2018, 33(20): 4763-4770.
[2] 张雪垠, 徐永海, 肖湘宁. 适用于中高压配电网的高功率密度谐振型级联H桥固态变压器[J]. 电工技术学报, 2018, 33(2): 310-321.
Zhang Xueyin, Xu Yonghai, Xiao Xiangning.A high power density resonance cascaded H-bridge solid-state transformer for medium and high voltage distribution network[J]. Transactions of China Electrotechnical Society, 2018, 33(2): 310-321.
[3] 冯兴田, 邵康, 崔晓, 等. 基于多模态切换的宽电压增益LLC谐振变换器控制策略[J]. 电工技术学报, 2020, 35(20): 4350-4360.
Feng Xingtian, Shao Kang, Cui Xiao, et al.Control strategy of wide voltage gain LLC resonant converter based on multi-mode switching[J]. Transactions of China Electrotechnical Society, 2020, 35(20): 4350-4360.
[4] 康小录, 杭观荣, 朱智春. 霍尔电推进技术的发展与应用[J]. 火箭推进, 2017, 43(1): 8-17, 37.
Kang Xiaolu, Hang Guanrong, Zhu Zhicun.Development and application of hall electric propulsion technology[J]. Journal of Rocket Propulsion, 2017, 43(1): 8-17, 37.
[5] 王建冈, 阮新波, 陈军艳. 航空用大功率模块电源的设计及关键技术应用研究[J]. 电工技术学报, 2005, 20(12): 95-100.
Wang Jiangang, Ruan Xinbo, Chen Junyan.Develo-pment of high power aviation modular power supply and research on key application technologies[J]. Transactions of China Electrotechnical Society, 2005, 20(12): 95-100.
[6] 任小永, 唐钊, 阮新波, 等. 一种新颖的四开关Buck-Boost变换器[J]. 中国电机工程学报, 2008, 28(21): 15-19.
Ren Xiaoyong, Tang Zhao, Ruan Xinbo, et al.A novel four switch Buck-Boost converter[J]. Proceedings of the CSEE, 2008, 28(21):15-19.
[7] Cuk S M.Molding, analysis, and design of switching converters[D]. California: California Institute of Technology, 1977.
[8] Erickson R W, Maksimovic D.Fundamentals of power electronics[M]. Mew York: Kluwer Academic publishers, 2001.
[9] Chen J, Maksimovic D, Erickson R W.Buck-Boost PWM converters having two independently controlled switches[C]//2001 IEEE 32nd Annual Power Electronics Specialists Conference,Vancouver, BC, Canada, 2001: 736-741.
[10] 朱继承, 蔡丽娟. 几种新型的Buck-Boost变换器的合成[J]. 通信电源技术, 2008, 25(2): 37-40.
Zhu Jicheng, Cai Lijuan.Synthesis of several novel Buck-Boost converters[J]. Telecom Power Technology, 2008, 25(2): 37-40.
[11] 姚川, 阮新波, 王学华. 宽输入电压范围下隔离型全桥Boost变换器的高效率控制[J]. 电工技术学报, 2012, 27(2): 1-9.
Yao Chuan, Ruan Xinbo, Wang Xuehua.High efficiency control strategy for isolated full-bridge-Boost converter suitable for wide input voltage range[J]. Transactions of China Electrotechnical Society, 2012, 27(2): 1-9.
[12] Sahu B, Rincon-Mora G A. A low voltage, dynamic, noninverting synchronous Buck-Boost converter for portable application[J]. IEEE Transactions on Power Electronics, 2004, 19(2): 443-452.
[13] Angkititrakul S, Hu H, Liang Z.Active inductor current balancing for interleaving multi-phase Buck-Boost converter[C]//2009 Twenty-Fourth Annual IEEE Applied Power Electronics Conference and Exposition, Washington DC, USA, 2009: 527-532.
[14] Andersen G K, Blaabjerg F.Utilizing the free running current programed control as a power factor correction technique for the two switch Buck-Boost converter[C]//IEEE Applied Power Electronics Conference and Exposition(APEC), Anaheim, CA, USA, 2004: 1213-1219.
[15] Yao Chuan, Ruan Xinbo, Cao Weijie, et al.A two-mode control input voltage feed-forward for two-switch Buck-Boost DC-DC converter[J]. IEEE Transactions on Power Electronics, 2014, 29(4): 2037-2048.
[16] Chen Chengwei, Chen Kunhung, Chen Yaowming.Modeling and controller design for a four-switch Buck-Boost converter in distributed maximum power point tracking PV system applications[C]//IEEE Energy Conversion Congress and Exposition(ECCE), 2012: 1663-1668.
[17] 韦莉, 刘帅, 尤伟玉, 等. 一种新型非谐振型软开关交错并联Boost电路[J]. 电工技术学报, 2017, 32(3): 172-183.
Wei Li, Liu Shuai, You Weiyu, et al.A novel interleaved Boost converter with non-resonant soft-switching[J]. Transactions of China Electrotechnical Society, 2017, 32(3): 172-183.
[18] 陈桂鹏, 陈銮, 陶勇, 等. 基于耦合电感的零电压开关同步Buck变换器[J]. 电工技术学报, 2016, 31(1): 102-109.
Chen Guipeng, Chen Luan, Tao Yong, et al.Zero-voltage-switching synchronous Buck converter with coupled inductor[J]. Transactions of China Electrote-chnical Society, 2016, 31(1): 102-109.
[19] Rogina M R, Rodriguez A, Vazquez A, et al.Improving the efficiency of SiC-based synchronous boost converter under variable switching frequency TCM and different input/output voltage ratios[J]. IEEE Transactions on Industry Applications, 2019, 55(6): 7757-7764.
[20] Baek J B, Choi W I, Cho B H.Digital adaptive frequency modulation for bidirectional DC-DC converter[J]. IEEE Transactions on Industrial Electronics, 2013, 60(11): 5167-5176.
[21] Konjedic T, Korosec L, Truntic M, et al.DCM-based zero-voltage switching control of a bidirectional DC-DC converter with variable switching frequency[J]. IEEE Transactions on Power Electronics, 2015, 31(4): 3273-3288.