中国电气工程学报（英文） ›› 2020, Vol. 6 ›› Issue (3): 73-84.doi: 10.23919/CJEE.2020.000021

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  • 收稿日期:2020-05-25 修回日期:2020-06-06 接受日期:2020-07-07 发布日期:2020-10-14

LLC Resonant Converter Topologies and Industrial Applications - A Review*

Junming Zeng1, Guidong Zhang1,*, Samson Shenglong Yu2, Bo Zhang   

  1. 1. School of Automation, Guangdong University of Technology, Guangzhou 510600, China;
    2. School of Engineering, Deakin University, Victoria 3216, Australia;
    3. School of Electric Power, South China University of Technology, Guangzhou 510640, China
  • Received:2020-05-25 Revised:2020-06-06 Accepted:2020-07-07 Published:2020-10-14
  • Contact: * E-mail: guidong.zhang@gdut.edu.cn
  • About author:Junming Zeng was born in Yangjiang, Guangdong, China, in 1997. He received a bachelor degree from the Guangdong University of Technology in Guangzhou in 2020, and he is currently working towards a master degree in power engineering from the School of Electrical & Electronic Engineering, Nanyang Technological University, Singapore. His current research interests include power electronics topology and their applications.
    Guidong Zhang (M'13) was born in Guangdong, China, in 1986. He received a B.S. degree and two Ph.D. degrees from Xi'an University of Technology, South China University of Technology and FernUniversität in Hagen in 2008, 2014, and 2015, respectively. He is currently an associate professor with the School of Automation, Guangdong University of Technology, Guangzhou. His research interests include power electronics topology and their applications.
    Samson Shenglong Yu (S'15-M'17) completed a master's degree in electrical and electronic engineering with distinction, and a Ph.D. degree in electrical power engineering from the University of Western Australia (UWA), Perth, Western Australia, Australia, in 2014 and 2017, respectively. From 2017 to 2019, he served as a postdoctoral research fellow at UWA. He is currently an assistant professor at Deakin University, Melbourne, Victoria, Australia. His research interests include power system analysis, renewable energy integration and forecasting, power electronics and their applications and control.Dr. Yu received the first and second Best Paper Awards in the IEEE Australia Paper Competition in 2016 and 2017, the Best Reviewer Award for IEEE Transactions on Smart Grid in 2018, and published a featured article in Chaos: An interdisciplinary journal of Nonlinear Science in 2019.
    Bo Zhang (M'03-SM'15) was born in Shanghai, China, in 1962. He received a B.S. degree in electrical engineering from Zhejiang University, Hangzhou, China, in 1982, an M.S. degree in power electronics from Southwest Jiaotong University, Chengdu, China, in 1988, and a Ph.D. degree in power electronics from Nanjing University of Aeronautics and Astronautics, Nanjing, China, in 1994.His current research interests include nonlinear analysis and control of power supplies and AC drives.
    Yun Zhang received B.S. and M.S. degrees in automatic engineering from Hunan University, Changsha, China, in 1982 and 1986, respectively, and a Ph.D. degree in automatic engineering from the South China University of Technology, Guangzhou, China, in 1998.He is currently a professor with the School of Automation, Guangdong University of Technology, Guangzhou. His current research interests include intelligent control systems, network systems, and signal processing.
  • Supported by:
    *National Natural Science Foundation of China (51907032) and the Natural Science Foundation of Guangdong Province (2018A030313365).

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Abstract: Owing to the advantages of high efficiency, high energy density, electrical isolation, low electromagnetic interference (EMI) and harmonic pollution, magnetic integration, wide output ranges, low voltage stress, and high operation frequency, the LLC resonant converters are widely used in various sectors of the electronics-based industries. The history and development of the LLC resonant converters are presented, their advantages are analyzed, three of the most popular LLC resonant converter topologies with detailed assessments of their strengths and drawbacks are elaborated. Furthermore, an important piece of research on the industrial applications of the LLC resonant converters is conducted, mainly including electric vehicle (EV) charging, photovoltaic systems, and light emitting diode (LED) lighting drivers and liquid crystal display (LCD) TV power supplies. Finally, the future evolution of the LLC resonant converter technology is discussed.

Key words: Electrical isolation, high energy density, LLC resonant converter, zero-current switching (ZCS) turn-off, zero-voltage switching (ZVS) turn-on