直接转矩控制技术及其在捏合机上的应用

Direct Torque Control Technology and It's Application to Kneading Machine

近年来,变频技术得到了迅速的发展,尤其是直接转矩控制(DTC)方式的出现,使交流电动机变频调速控制技术的重大突破。在某化工厂大型捏合设备改造中,选用ABB公司的ACS607变频器,在捏合机HMI-IPC控制系统下通过PLC对主电机进行转速控制,取得了良好的控制效果。

Re cently,some frequency conversion technolog ies have been developed,especiall y,direct torque control (DTC)technolog y.The DTC is a breakthroug h in the area of AC electromotor variable frequency control.During the course of reno vation for a larg e kneading machine in a chemical factory,ACS607Variable Frequency Driv-er produced by ABB is used to control the main electromotor .Under the environment of HMI-IPC control sys-tem for the kneading machi ne,control sig nals for main electromotor are sent out by PLC.Practice s hows that g ood control performance is achieved after applying DTC to adjust the rotate speed of kneading machine.