Title :
A maximum current sharing method for dual-redundancy brushless DC Motor control
Author :
Hao Yan ; Yongxiang Xu ; Jibin Zou ; Baochao Wang ; Shanlin Jiang
Author_Institution :
Dept. of Electr. Eng., Harbin Inst. of Technol., Harbin, China
Abstract :
Owing to the redundant structure, Dual-redundancy Brushless DC Motor (BLDCM) has played an important role in aerospace in which a high reliability is essential. To solve the problem of current imbalance between the two stator windings in Dual-redundancy BLDCM, in this paper a Maximum Current Sharing Method is selected to realize the current balancing. First, the mathematical model of Dual-redundancy BLDCM is established. And then the causes and consequences of current imbalance are analyzed. The model of Dual-redundancy BLDCM double closed loop control system based on maximum current sharing method is established and simulated at last. The simulation results demonstrate the validity of this current sharing control strategy.
Keywords :
brushless DC motors; closed loop systems; electric current control; machine control; stators; BLDCM; current balancing; double closed loop control system; dual-redundancy brushless dc motor control; mathematical model; maximum current sharing method; stator windings; AC motors; Control systems; Fault tolerance; Fault tolerant systems; Mathematical model; Torque; Windings; Current Balance Control Strategy; Dual-redundancy BLDCM; Matlab/Simulink; maximum current sharing;
Conference_Titel :
Electrical Machines and Systems (ICEMS), 2014 17th International Conference on
Conference_Location :
Hangzhou
DOI :
10.1109/ICEMS.2014.7013634
