多驱带式输送机变频调速控制技术研究  

Research on Frequency Control Technology of Multi-drive Belt Conveyor

作　　者：高巧玲[1] 魏丽君[1] 秦灿华 GAO Qiaoling;WEI Lijun;Qin Canhua(Hunan Railway Vocational and Technical College,Zhuzhou Hunan 421001,China;Zhuzhou CRRC Times Electric Co.,Ltd.,Zhuzhou Hunan 421001,China)

机构地区：[1]湖南铁道职业技术学院,湖南株洲421001 [2]株洲中车时代电气股份有限公司,湖南株洲421001

出　　处：《微电机》2023年第8期35-38,共4页Micromotors

基　　金：21C1297湖南省教育厅科学研究项目。

摘　　要：多驱带式输送机由于滚筒直径误差、电机特性差异、负荷实时变化等客观因素的存在,导致各台电机在运行过程中易出现输出功率不一致,进而造成设备寿命降低。针对这一问题,提出一种基于高压变频器的异步电机变频调速控制方式,通过设定主从机协同模式,主机采用速度闭环控制方式,从机采用转矩闭环控制方式,从机实时跟随主机的输出功率,保证了两者输出功率一致,并通过现场的实际应用,证明该方法对于控制电机功率平衡的效果非常好。Due to the existence of objective factors such as roller diameter errors,motor characteristics differences,and real-time load changes,multiple drive belt conveyors are prone to inconsistent output power during operation,resulting in reduced equipment life.In response to this problem,a variable frequency speed control method for asynchronous motors based on high-voltage inverters was proposed.By setting the master-slave cooperation mode,the host adopted speed closed-loop control,and the slave adopted torque closed-loop control.The slave follows the output power of the host in real time,ensuring that the output power of the two is consistent.Through on-site practical applications,it is proved that this method has a very good effect on controlling the power balance of the motor.

关 键 词：皮带机 异步电机 功率平衡 

分 类 号：TM343[电气工程—电机] TP273[自动化与计算机技术—检测技术与自动化装置]