IEEE Transactions on Industrial Electronics · 2009 · 97 citations · 22 references
EngineeringElectrical EngineeringElectric MachinesFault TolerancePower ElectronicsBrushless Dc MachinesElectric DrivesElectric Motor Drive SystemsElectric Motor DrivesElectric MotorsPermanent Magnet MachinesBrushless Dc Motor DrivesMotor Drive SystemsMotor Fault TolerancePermanent Magnet Brushless MotorsPermanent Magnet Synchronous Motor DrivesTorqueTorque RippleTorque Ripple Reduction
The doubly salient permanent-magnet (DSPM) machine is a new class of stator-PM brushless machines, which inherently offers the fault-tolerant feature. In this paper, a new operation strategy is proposed and implemented for fault-tolerant DSPM motor drives. The key is to operate the DSPM motor drive in a remedial brushless ac (BLAC) mode under the open-circuit fault condition, while operating in the conventional brushless dc mode under normal condition. Both cosimulation and experimental results confirm that the proposed remedial BLAC operation can maintain the average torque, reduce the torque ripple, and retain the self-starting capability under the open-circuit fault.
22