摘要
针对有源电力滤波器中对大功率IGBT驱动电路抗干扰性能的要求,基于M57962AL芯片设计了IGBT驱动与保护电路。采用两个二极管串电阻的方式检测VCE电压变化,结合IGBT输出特性曲线,可以通过调整电阻值设置IGBT短路保护电流阈值。有源电力滤波器运行实验表明,本设计比单二极管加电阻的方式具有更强的抗干扰性能,提高了IGBT短路保护的可靠性。
Aiming at the anti-interference performance requirements of high-power IGBT drive circuit in active power filter,this paper designs IGBT drive and protection circuit based on M57962AL chip.The VCE voltage change is detected by two diode series re-sistors.Combined with the IGBT output characteristic curve,the IGBT short-circuit protection current threshold can be set by adjus-ting the resistance value.The operation experiment of active power filter shows that this design has stronger anti-interference performance than the single diode plus resistance method,and improves the reliability of IGBT short-circuit protection.
作者
苟家喜
房占凯
陈果
赖强
刘霜
GOU Jiaxi;FANG Zhankai;CHEN Guo;LAI Qiang;LIU Shuang(Chong qing Chuanyi Automation Co.,Ltd.,Chongqing 401121,China)
出处
《自动化与仪器仪表》
2023年第6期261-263,共3页
Automation & Instrumentation
