华南理工大学学报(自然科学版) ›› 2019, Vol. 47 ›› Issue (1): 1-6.doi: 10.12141/j.issn.1000-565x.180311

• 机械工程 •    下一篇

基于 SiC MOSFET 的谐振软开关等离子体电源

王振民吴健文范文艳叶春显2   

  1. 1. 华南理工大学 机械与汽车工程学院,广东 广州 510640; 2. 深圳市鹏源电子有限公司,广东 深圳 518000
  • 收稿日期:2018-06-20 修回日期:2018-09-04 出版日期:2019-01-25 发布日期:2018-12-01
  • 通信作者: 王振民( 1974) ,男,教授,博士生导师,主要从事高端焊割装备及机器人等研究 E-mail:wangzhm@scut.edu.cn
  • 作者简介:王振民( 1974) ,男,教授,博士生导师,主要从事高端焊割装备及机器人等研究
  • 基金资助:
    国家自然科学基金资助项目( 51875212) ; 广东省科技计划项目( 2018A030313192,2017B090901023, 2016B090927008,) ;广州市国际合作项目( 201807010035) 

Resonant Soft Switching Plasma Power Supply Based on SiC MOSFET

WANG Zhenmin1 WU Jianwen1 FAN Wenyan1 YE Chunxian2    

  1.  1. School of Mechanical and Automotive Engineering,South China University of Technology,Guangzhou 510640, Guangdong,China; 2. Shenzhen Advantage Power Limited,Shenzhen 518000,Guangdong,China
  • Received:2018-06-20 Revised:2018-09-04 Online:2019-01-25 Published:2018-12-01
  • Contact: 王振民( 1974) ,男,教授,博士生导师,主要从事高端焊割装备及机器人等研究 E-mail:wangzhm@scut.edu.cn
  • About author:王振民( 1974) ,男,教授,博士生导师,主要从事高端焊割装备及机器人等研究
  • Supported by:
     Supported by the National Natural Science Foundation of China( 51875212) and the Science and Technology Planning Project of Guangdong Province( 2018A030313192,2017B090901023,2016B090927008) 

摘要: 利用 SiC MOSFET 能简化电路拓扑、提高电源的功率密度和效率. 为推动大功率 等离子体电源的升级换代,提出了一种采用新型 SiC 功率器件的全桥谐振变换器. 该谐振 变换器的主电路采用 LLC Zero Voltage Switching( ZVS) 拓扑结构,可将谐振换流频率范围 增大至260 ~310kHz. 设计的高频高压全桥 LLC ZVS 谐振变换器样机的额定输出功率为 8kW,输出电压为270V. 对所研制的8kW 级 SiC MOSFET 全桥 LLC ZVS 谐振变换器样机 的驱动性能、换流过程、温升以及效率进行了测试,结果表明,研制的谐振软开关等离子体 电源性能优良,工作稳定可靠,效率和功率密度均优于使用传统 Si MOSFET 的 LLC 谐振 变换器. 

关键词: 等离子体电源, 谐振变换器, SiC MOSFET, 功率密度, 效率 

Abstract: SiC MOSFET can simplify circuit topology and improve power density and efficiency of power supply. A full bridge resonant converter using a new SiC power device was proposed to promote the upgrading of high-power plasma power supply. The main circuit of the resonant converter adopts LLC Zero Voltage Switching ( ZVS) topology,which can enlarge the frequency range of resonant commutation to 260 ~ 310 kHz. The rated output power of the designed full bridge LLC ZVS resonant converter prototype is 8kW and the output voltage is 270V. The driving performance,commutation process,temperature rise and efficiency of the 8kW SiC MOSFET full-bridge LLC ZVS resonant converter prototype were tested. The results show that the developed resonant soft-switching plasma power supply is of good performance and high reliability,and both its efficiency and power density are better than those of the traditional LLC resonant converter using Si MOSFET. 

Key words: plasma power supply, resonant converter, SiC MOSFET, power density, efficiency

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