Efficiency Optimization and Control Strategy of Four-Switch Buck-Boost Converter for Wide Conversion Ratio

被引：11

作者：

Guo, Zhiqiang ^{[1
]}

Mao, Tianhao ^{[1
]}

机构：

[1] Beijing Inst Technol, Sch Automat, Beijing 100081, Peoples R China

来源：

IEEE TRANSACTIONS ON POWER ELECTRONICS | 2023年 / 38卷 / 09期

基金：

北京市自然科学基金;

关键词：

Duty cycle plus phase shift control; optimized current stress; wide conversion ratio; zero voltage switching (ZVS); DC-DC CONVERTER; SYSTEM;

D O I：

10.1109/TPEL.2023.3282203

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：

An improved control strategy for the four-switch buck-boost (FSBB) converter is proposed to improve the efficiency in a wide conversion ratio and wide loads. The conventional duty-cycle-controlled FSBB converter cannot achieve the zero voltage switching (ZVS) for all the switches while the converter has a dead zone issue. The proposed control strategy is controlled by the duty cycle and phase shift control. The control law is derived from the analytical solution of the optimized current stress with the constraint of the ZVS for all the switches. The working modes in the proposed control strategy can cover the whole load in a wide conversion ratio. Furthermore, the dead zone issue is removed. The modulation surface and output power surface versus the conversion ratio and control variable demonstrate the working modes are switched seamlessly. The control strategy is implemented in the digital controller. Finally, the experimental results verify the higher efficiency and dynamic performance of the control strategy.

引用

页码：10702 / 10715

页数：14

共 27 条

[1]

Bai Yuning, 2022, 2022 IEEE 5th International Electrical and Energy Conference (CIEEC), P2534, DOI 10.1109/CIEEC54735.2022.9846753

[2] A High-Efficiency Positive Buck-Boost Converter With Mode-Select Circuit and Feed-Forward Techniques [J].

Chen, Jiann-Jong ;

Shen, Pin-Nan ;

Hwang, Yuh-Shyan .

IEEE TRANSACTIONS ON POWER ELECTRONICS, 2013, 28 (09) :4240-4247

[3]

Gaboriault M, 2004, APPL POWER ELECT CO, P1411

[4] Modulation Scheme of Dual Active Bridge Converter for Seamless Transitions in Multiworking Modes Compromising ZVS and Conduction Loss [J].

Guo, Zhiqiang .

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, 2020, 67 (09) :7399-7409

[5] Wide-Range ZVS Control Technique for Bidirectional Dual-Bridge Series-Resonant DC-DC Converters [J].

Han, Weijian ;

Corradini, Luca .

IEEE TRANSACTIONS ON POWER ELECTRONICS, 2019, 34 (10) :10256-10269

[6]

Higa H., 2018, PROC IEEE INT POWER, P1

[7]

Hoffmann K. F., 2015, P INT EXH C POW EL I, P1

[8] Unified Triple-Phase-Shift Control to Minimize Current Stress and Achieve Full Soft-Switching of Isolated Bidirectional DC-DC Converter [J].

Huang, Jun ;

Wang, Yue ;

Li, Zhuoqiang ;

Lei, Wanjun .

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, 2016, 63 (07) :4169-4179

[9] High-Frequency High-Efficiency GaN-Based Interleaved CRM Bidirectional Buck/Boost Converter with Inverse Coupled Inductor [J].

Huang, Xiucheng ;

Lee, Fred C. ;

Li, Qiang ;

Du, Weijing .

IEEE TRANSACTIONS ON POWER ELECTRONICS, 2016, 31 (06) :4343-4352

[10] Buck-Boost Converter Efficiency Maximization via a Nonlinear Digital Control Mapping for Adaptive Effective Switching Frequency [J].

Jones, David C. ;

Erickson, Robert W. .

IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS, 2013, 1 (03) :153-165

← 1 2 3 →