Open Winding - Permanent Magnet/Magnet Reluctance Hybrid Rotor Double Stator Synchronous Motor Fault-tolerant Control

Coal mine conveyor belt and other low-speed large torque system, the stability of the motor requires high, Permanent Magnet/Magnet Reluctance Hybrid Rotor Double Stator Synchronous Motor (PM/MRHRDSSM) is just suitable for this requirement, however, the working environment of the mine is more complex and harsh, when the motor's controller fails is not easy to replace. Permanent Magnet/Magnet Reluctance Hybrid Rotor Double Stator Synchronous Motor (OW-PM/MRHRDSSM) dual-inverter fault-tolerant control strategy with three-phase four-bridge arms and three-phase shared bridge arm are proposed. The analyses are also carried out in terms of topology, space voltage vectors and switching states for the fault-tolerant control possibilities of the two open winding dual-inverter, and at the end of the paper, simulations are carried out to verify the correctness of the control method proposed.