Abstract
In order to improve the dynamic, steady-state performance and synchronization accuracy of the multi-motor drive system, this paper proposes a finite control set model predictive control (FCS-MPC) + deviation coupling position command shaping control (RPCSC) for the multi-motor drive system. FCS-MPC is used to design a non-cascaded predictive speed controller for multi-motor system to improve dynamic performance. In order to improve synchronization accuracy and reduce synchronization errors, RPCSC is used to feed forward the synchronization compensation to the controller. Then the reference voltage vector with current and speed information is predicted, then the improved cost function is determined, the candidate voltage vector and duty cycle corresponding to each sector are determined according to the position angle of the reference voltage vector. After optimization, the optimal voltage vector and adjustment time are applied to the inverters. Finally, the simulation research proves that the proposed control strategy can meet the required dynamic response speed and position synchronization control accuracy.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
