Suzhou Electric Appliance Research Institute
期刊号: CN32-1800/TM| ISSN1007-3175

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并联谐振感应加热电源控制技术的研究

来源:电工电气发布时间:2022-12-22 11:22 浏览次数:191

并联谐振感应加热电源控制技术的研究

武瑞珅,张宝峰,朱均超,张成林,赵宁宁
(天津理工大学 电气工程与自动化学院,天津 300384)
 
    摘 要:针对感应加热过程中负载谐振频率不断变化的问题以及功率调节的需要,通过对并联谐振逆变器的工作原理进行分析,提出了一种并联谐振感应加热电源中直流软斩波功率调节与定角锁相环频率跟踪的控制方法,并对控制电路进行了设计。该控制技术使逆变器开关管一直工作在 ZVS 状态,降低了功率器件的开关损耗,提高了中频加热的工作效率,使系统的电磁干扰和电磁兼容性能得到改善,让逆变电路始终工作在小容性状态。
    关键词: 逆变器;并联谐振感应加热电源;直流软斩波;定角锁相环
    中图分类号:TM464    文献标识码:A     文章编号:1007-3175(2022)12-0037-05
 
Research on Control Technique of Parallel Resonant
Induction Heating Power Supply
 
WU Rui-shen, ZHANG Bao-feng, ZHU Jun-chao, ZHANG Cheng-lin, ZHAO Ning-ning
(School of Electrical Engineering and Automation, Tianjin University of Technology, Tianjin 300384, China)
 
    Abstract: The load resonant frequency constantly changes and the power needs to be regulated in the process of induction heating. After making analysis of the working principle of parallel resonance converter, the paper puts forward the control method of regulating DC soft chopper and tracking the fixed-angle phase-locked loop frequency of the parallel resonant induction heating power supply, and designs the control circuit This control technique can make the inverter switching tube keeping working under the ZVS state, which decreases the switching loss of power devices and increases work efficiency of the medium frequency induction heating to improve electromagnetic interference and EMC performance and make inverter circuit keeping working under the small capacitive current state.
    Key words: inverter; parallel resonant induction heating power supply; DC soft chopper; fixed-angle phase-locked loop
 
参考文献
[1] 王晓娜,方旭,唐波,等. 脉冲式感应加热电源频率跟踪技术的研究与实现[J] . 电工技术学报,2018,33(18):4357-4364.
[2] 朴政国,户永杰,郭裕祺. 一种基于并联谐振的高频隔离型并网逆变器[J] . 电工技术学报,2018,33(2):322-330.
[3] 王芳瑞,凡绍桂,周玮,等. 基于瞬间电流建立的 Buck 变换器软开关方法[J]. 电力电子技术,2021,55(7):139-141.
[4] 焦堂沛,樊经纬,陈鹏,等. 一种新型软开关同步 Buck 变换器的研究[J] . 电力电子技术,2020,54(3):108-109.
[5] 余成波,张林,龙曦. 基于 FPGA 数字 PLL 谐振频率的跟踪研究[J] . 重庆理工大学学报(自然科学版),2019,33(4):141-146.