一种新颖的超高频感应加热电源

作者：刘磊，陈辉明，王正仕，陈振伟 日期：2007-10-25/span> 浏览：3952 查看PDF文档

一种新颖的超高频感应加热电源

刘磊，陈辉明，王正仕，陈振伟
（浙江大学 电力电子学系，浙江 杭州 310027）

摘要：通过对软开关技术的研究，提出了一种全新的双管LLC谐振负载电路拓扑，解决了传统感应加热过程中高频条件下开关损耗的问题。采用电感电流反馈控制,并加入电路保护环节进行保护，提高了电源的可靠性。该方案简单新颖，易于实现。实验结果有效地验证了理论分析，该电路可以实现零电压开通，提高电源的工作频率。
关键词：超高频；感应加热；LLC谐振
中图分类号：TP216文献标识码：A文章编号：1001-4551(2007)10-0007-03

A novel ultrahigh frequency power supply for induction heating
LIU Lei, CHEN Huiming, WANG Zhengshi, CHEN Zhenwei
(Department of Power Electronics, Zhejiang University, Hangzhou 310027, China)
Abstract: Basing on the technology of softswitch, a novel twoswitch LLC resonant inverter topology was proposed, which has solved the switching loss in traditional induction heating. To improve reliability of the power, currentfeedback control mode and protection circuits were proposed. The method was simple and eased to realize. Experiment results effectively indicate the theoretic analysis that ZVS can be achieved in this circuit, and increase the work frequency of the power.
Key words: ultrahigh frequency; induction heating; LLC resonant

参考文献(Reference)：
［1］李现兵，师宇杰，王广州，等.现代电力电子器件的发展与现状［J］.世界电子元器件，2005(5):24-28.
［2］朱晓荣，彭咏龙,等.200 kW/400 kHZ固态高频感应加热电源［J］.电力电子技术,2006，40(3):67-69.
［3］ESPI J M, DEDE E J, FERRERES A, et al. Features and Design of the VoltageFed LLC Resonant Inverter for Induction Heating［C］//Power Electronics Specialists Conference (PESC). Charlston:［s.n］,1999:1126-1131.
［4］ESPI J M, DEDE E J, FERRERES A, et al. Steadystate frequency analysis of the “LLC” resonant inverter for induction heating［C］//IEEE International Power Electronics Congress (CIEP). Mexico:［s.n］,1996:22-28.
［5］ESPI J M, NAVARRO A E, MAICAS J, et al. Control circuit design of the LLC resonant inverter for induction heating［C］//Power Electronics Specialists Conference. Ireland: ［s.n］,2000:1430-1435.
［6］DEDE E J, ESPI J M, FERRERES A, et al. Design Considerations for Transformerless Series Resonant Inverters for Induction Heating［C］//Power Electronics and Drivers Systerms(PEDS).Sigapore:［s.n］,1997:334-339.