Multi-phase fault-tolerant brushless DC motor drives
Conference Paper
Overview
Identity
Additional Document Info
View All
Overview
abstract
This paper examines the design features to be incorporated in Brushless DC (BLDC) motors to enhance their fault-tolerance. Three BLDC motors with 3, 4 and 5 phases are designed with these features in order to investigate the effect of increasing the number of phases. The various faults that can occur in a motor drive are discussed, and the performance of these motors under normal conditions and open-circuit faults is compared. Possible remedial strategies following open-circuit faults are discussed. The operating mode that results in least disruption in the case of a fault and the motor with the greatest degree of fault-tolerance are identified.