电流型高频逆变电路的研究  

Research on current-mode high frequency inverter circuit

作　　者：徐微[1] 李守智[2] 李波波 杨文强 张艳肖[1] XU Wei;LI Shouzhi;LI Bobo;YANG Wenqiang;ZHANG Yanxiao(Department of Electrical and Information Engineering,Xi’an Jiaotong University City College,Xi’an 710018,China;School of Electrical Engineering,Xi’an University of Technology,Xi’an 710048,China;Nationl Institute Corporation of Additive Manufacturing,Xi’an 710075,China)

机构地区：[1]西安交通大学城市学院电气与信息工程系,陕西西安710018 [2]西安理工大学电气工程学院,陕西西安710048 [3]西安增材制造国家研究院有限公司,陕西西安710075

出　　处：《电子设计工程》2022年第16期31-35,40,共6页Electronic Design Engineering

基　　金：陕西省教育科学“十三五”规划2020年度课题(SGH20Y1379)。

摘　　要：针对高频感应加热电源在小型工件表面热处理应用中存在输出频率较低等问题,提出了电流型多管并联、分时交错逆变电路结构,并设计了实用性较强的负压驱动电路,搭建了相应的实验平台,结果表明,采用多管并联、分时交错的电流型逆变电路结构能较好地实现电源输出频率的高频化,对于N管并联的逆变电路结构,电源输出频率是开关频率的N倍。实验采用三管并联的电流型逆变电路结构,使用FPGA实现分时交错控制,当开关频率为353 kHz时,电源输出频率为1.05 MHz,验证了软硬件电路的合理性。High frequency induction heating power supply is widely used in surface heat treatment of small workpieces. But there are some problems,the output frequency is low,in view of the question,we proposed a current-mode multi-tube parallel main circuit with time sharing interleaving control,and designed a practical negative pressure drive circuit.The experimental results show that the output frequency of the power supply can be improved by using the current-mode main circuit structure with multi-tube parallel and time-sharing interleave. For the main circuit structure with n-tube parallel,the output frequency of the power supply is N times of the switching frequency.In the experiment,a three transistor parallel current mode inverter is used,and FPGA is used to realize time-sharing interleaving control. When the switching frequency is 353 kHz,the output frequency of the power supply is 1.05MHz,thus the verifying the hardware and the software design is reasonable.

关 键 词：高频感应加热 电源 分时交错控制 开关损耗 

分 类 号：TN86[电子电信—信息与通信工程]