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

fYear

2014

fDate

22-25 Oct. 2014

Firstpage

1057

Lastpage

1061

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines and Systems (ICEMS), 2014 17th International Conference on

Conference_Location

Hangzhou

Type

conf

DOI

10.1109/ICEMS.2014.7013634

Filename

7013634