Synchronization Methods of Belt Conveyor Drive Drums

The paper discusses the synchronization of the drive drums of a multi-motor conveyor belt. The start-up and operation of the conveyor with master-slave control systems in terms of torque and speed are investigated. Such a control system can be organized by built-in means of a frequency converter. As a result of mathematical modeling in the SimInTech environment, it was found that the master-slave speed system ensures synchronization of the speeds of the drive drums and maintenance of the traction factor equal to static at the nominal speed of rotation. The master-slave torque system provides less fluctuations in the traction factor during start-up and allows you to distribute the load moments between the motors. However, in order to ensure smooth operation of the conveyor, it is necessary to limit the driving torque of the slave motor when the traction factor exceeds the critical value. Therefore, in such a system, it is necessary to have a torque limitation unit implemented by means of a frequency converter or using an programmable logic controller.