Research on controlled synchronization of vibrating screen driven by two induction motors

The vibrating screen with vibration synchronization as the working mechanism can no longer meet the process needs in the social generation, so the control method is introduced to achieve the zero phase difference state and achieve the purpose of increasing the amplitude. According to the mechanical dynamics theory, the motion state of the vibrating screen is transformed into the dynamic model of the two-machine drive vibration system, and the synchronization conditions and stability conditions of the synchronous motion of the vibration system are derived and analyzed. Based on the master-slave control strategy, the speed controller of a single induction motor is designed by using the model predictive flux control strategy, the feedforward control is introduced into the single-neuron PID control, and the phase controller is designed to realize the zero phase difference state of the two-eccentric rotor. According to the dynamic model, the simulation model is built in Matlab/Simulink, and the simulation shows that the proposed control strategy and method are effective and stable. The proposed control method is compared with other control methods, and the results show that the synchronous control effect of the proposed control method is better.