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1.北京理工大学电动车辆国家工程研究中心,北京市 100081
2.国网江苏省电力有限公司,江苏省南京市 210000
张保坤(1997—),男,博士研究生,主要研究方向:无线电能传输技术。E-mail:bk.zhang@bit.edu.cn
邓钧君(1985—),男,通信作者,博士,副教授,博士生导师,主要研究方向:无线电能传输、谐振功率变换、电动汽车充电技术。E-mail:dengjunjun@bit.edu.cn
林倪(1990—),男,博士,副研究员,硕士生导师,主要研究方向:动力电池系统及其车载应用。E-mail:6120200190@bit.edu.cn
收稿日期:2024-09-01,
修回日期:2025-02-09,
网络出版日期:2025-06-11,
纸质出版日期:2025-08-25
移动端阅览
张保坤,邓钧君,林倪等.基于移相控制与模式切换的双向无线电能传输系统效率优化方法[J].电力系统自动化,2025,49(16):187-196.
ZHANG Baokun,DENG Junjun,LIN Ni,et al.Efficiency Optimization Method for Bidirectional Wireless Power Transfer System Based on Phase-shift Control and Mode Switching[J].Automation of Electric Power Systems,2025,49(16):187-196.
张保坤,邓钧君,林倪等.基于移相控制与模式切换的双向无线电能传输系统效率优化方法[J].电力系统自动化,2025,49(16):187-196. DOI: 10.7500/AEPS20240901002.
ZHANG Baokun,DENG Junjun,LIN Ni,et al.Efficiency Optimization Method for Bidirectional Wireless Power Transfer System Based on Phase-shift Control and Mode Switching[J].Automation of Electric Power Systems,2025,49(16):187-196. DOI: 10.7500/AEPS20240901002.
为提升电动汽车双向无线电能传输系统在宽功率范围的运行效率,以采用双耦合双边电感-电容-电容串并联(LCC-LCC)补偿拓扑的系统为研究对象,提出了一种多变量-多模式联合的高效调控策略。首先,推导了谐振网络和功率变换器的高效条件,作为效率优化方法的理论依据。其次,研究了适合不同激励电压方案的时域模型;在此基础上,分析了实现阻抗匹配以及功率器件临界软开关、以效率最优为导向的三移相控制方法。然后,研究了高频变换器的全桥、半桥、混合桥这3种运行模式,并通过模式切换来进一步减小外移相角的偏移程度、降低开关损耗、适应不同的参数及工况。最后,搭建了双向无线电能传输系统实验平台,在不同工况下验证了所提模型、方法和策略的有效性。实验结果表明,在5%~100%的功率范围内,系统的直流-直流转换效率保持在94.0%~96.4%。
To enhance the operational efficiency of the bidirectional wireless power transfer (BWPT) system for electric vehicles over a wide power range
this paper focuses on a dual-coupled double-sided inductor-capacitor-capacitor series and parallel connection (LCC-LCC) compensation topology and proposes a multi-variable and multi-mode combined regulation strategy for high-efficiency operation. Firstly
the high-efficiency conditions of the resonant network and the power converter are derived as the theoretical basis for the efficiency optimization method. Secondly
a time-domain model compatible with various excitation voltage schemes is developed. Based on this model
the triple-phase-shift control method is analyzed
which achieves impedance matching
critical soft switching of power devices
and optimal efficiency. Furthermore
three operation modes of the high-frequency converter
namely full-bridge
half-bridge
and mixed-bridge
are studied. Mode-switching coordination is introduced to minimize the deviation of the external phase-shift angle
reduce switching losses
and adapt to different parameters and operating conditions. Finally
the experimental platform of a BWPT system is established. The effectiveness of the proposed model
method
and strategy is verified under various operating conditions. Experimental results show that the system achieves a DC-DC conversion efficiency of 94.0%~96.4% across the power range of 5%~100%.
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