Title :
A controller of brushless DC motor for electric vehicle
Author :
Hong-Xing, Wu ; Shu-Kang, Cheng ; Shu-Mei, Cui
Author_Institution :
Dept. of Electr. Eng., Harbin Inst. of Technol., China
Abstract :
A controller of brushless DC motor (BLDCM) for electric vehicle is developed based on the mathematical model of BLDCM and special working condition. The drive and control circuit is composed of digital signal processing and EXB841. The paper analyses the hardware structure of system in detail. Proportional-Integral-Differential control strategy is adopted in the system. An arithmetic variable velocity prelabelled value is presented, in order to solve regulating rotate speed in large range accurately. The paper also analyzes flux-weakening control in high speed and method of energy regenerative braking when the vehicle is decelerating.
Keywords :
angular velocity control; brushless DC motors; electric vehicles; mathematical analysis; regenerative braking; three-term control; DSP; EXB841; brushless DC motor; digital signal processing; electric vehicle; energy regenerative braking; flux-weakening control; hardware structure; mathematical model; proportional-integral-differential control; Brushless DC motors; Circuits; Digital signal processing; Electric variables control; Electric vehicles; Employee welfare; Hardware; Mathematical model; Pi control; Proportional control;
Conference_Titel :
Electromagnetic Launch Technology, 2004. 2004 12th Symposium on
Print_ISBN :
0-7803-8290-0
DOI :
10.1109/ELT.2004.1398137
