感应加热电源的IGBT驱动保护系统设计  

Design of IGBT Drive Protection System for Induction Heating Power Supply

作　　者：魏思宇 黄海波[1] 卢军[1] 张程 WEI Siyu;HUANG Haibo;LU Jun;ZHANG Cheng(School of Electrical&Information Engineering,Hubei University of Automotive Technology,Shiyan 442002,China)

机构地区：[1]湖北汽车工业学院电气与信息工程学院,湖北十堰442002

出　　处：《自动化仪表》2024年第3期49-54,共6页Process Automation Instrumentation

基　　金：湖北省中央引导地方科技发展专项基金资助项目(2018ZYYD007)。

摘　　要：为提高感应加热电源的绝缘栅双极型晶体管(IGBT)信号源与保护电路的稳定性,设计了应用于工业化低频大功率感应加热电源设备的IGBT驱动保护系统。系统整体采用复杂可编程逻辑器件(CPLD)+数字信号处理(DSP)协同工作方案,由低频正弦脉冲宽度调制(SPWM)技术控制,以脉冲变压器2ED300C17-S为IGBT保护电路的核心,设计了IGBT故障处理电路、退饱和检测电路与有源钳位电路等多种保护电路。对系统进行理论分析与Matlab/Simulink仿真,搭建了实物测试平台。试验结果表明,当工件加热到900℃时,逆变器输出功率参数与负载端功率参数达到大功率感应加热电源要求,且信号源输出稳定性高、保护电路响应时间快。该设计为相关工业化应用提供技术支持。To improve the stability of the signal source and protection circuit of the insulated gate bipolar transistor(IGBT)of the induction heating power supply,the IGBT driving and protection system applied to the industrialized low-frequency and high-power induction heating power supply equipment is designed.The system as a whole adopts the complex programmable logic device(CPLD)+digital signal processing(DSP)cooperative work program,controlled by the low-frequency sinusoidal pulse width modulation(SPWM)technology,with the pulse transformer 2ED300C17-S as the core of the IGBT protection circuit,the IGBT fault processing circuits,desaturation detection circuits,and active clamping circuits,and a variety of other protection circuits are designed.Theoretical analysis of the system and Matlab/Simulink simulation are carried out to built a physical test platform.The test results show that when the workpiece is heated to 900℃,the output power parameters of the inverter and the load-side power parameters meet the requirements of high-power induction heating power supply,and the signal source output is high stability,and the response time of the protection circuit is fast.The design provides technical support for related industrialized applications.

关 键 词：感应加热 绝缘栅双极型晶体管 正弦脉冲宽度调制 保护电路 金属加工 

分 类 号：TH-39[机械工程]