一种适用感应电机控制的死区补偿策略  

A Dead Zone Compensation Strategy for Induction Motor Control

作　　者：邹会杰 张涛 Zou Huijie;Zhang Tao(CRRC Yongji Electric Co.,Ltd.,Xi’an Shaanxi 710000)

机构地区：[1]中车永济电机有限公司,陕西西安710000

出　　处：《现代工业经济和信息化》2020年第4期121-122,共2页Modern Industrial Economy and Informationization

摘　　要：电力机车的逆变器主电路一般采用桥式电路,开关器件采用IGBT,由于IGBT存在开通和关断延迟,为保证逆变器正常工作,同一桥臂的上下IGBT须建立一个死区,通过这种方式虽然实现了功率器件的可靠运行,但是也带来死区效应。针对该问题,文章提出了一种适用于感应电机控制的死区补偿策略,并通过试验验证经过死区补偿后的输出电压波形与理论电压波形一致,达到死区补偿的目的。The main circuit of the inverter of an electric locomotive generally uses a bridge circuit,and the switching device uses an IGBT.Due to the turn-on and turn-off delay of the IGBT,in order to ensure the normal operation of the inverter,the upper and lower IGBTs of the same bridge arm must establish a dead zone.Although this method achieves reliable operation of the power device,it also brings about a dead zone effect.In response to this problem,this paper proposes a dead zone compensation strategy suitable for induction motor control.Through experiments it verifies that the output voltage waveform after the dead zone compensation is consistent with the theoretical voltage waveform,to achieve the purpose of dead zone compensation.

关 键 词：逆变器 变频调速 死区补偿 

分 类 号：TM346[电气工程—电机]