Title :
Development of full digital control system for permanent magnet synchronous motor used in electric vehicle
Author :
Xu Jiaqun ; Xu Yanliang ; Renyuan, Tung
Author_Institution :
Res. Inst. of Special Electr. Machines, Shenyang Univ. of Technol., China
Abstract :
This paper describes a full digital system to control a permanent magnet synchronous motor (PMSM) used in electric vehicle (EV) driving by TMS320C240 DSP. In view of the operation characteristic of EV, a fuzzy-PI control strategy is presented based on the field orientated control (FOC) and space vector technique in order to utilize reluctance torque of PMSM effectively. Due to the compensation for torque changes resulting from d-axis current in real-time, the system maintains high efficiency in all range of speed. The combination of fewer components and the improved control strategy enables the system to fulfil enhanced operation performance of EV
Keywords :
digital control; digital signal processing chips; electric vehicles; fuzzy control; machine vector control; permanent magnet motors; synchronous motors; torque; two-term control; 7.5 kW; TMS320C240 DSP; control strategy; d-axis current; digital control system; digital signal processor; electric vehicle; enhanced operation performance; field orientated control; fuzzy-PI control strategy; high efficiency; permanent magnet synchronous motor; reluctance torque; space vector technique; torque compensation; Control systems; Costs; Digital control; Digital signal processing; Digital systems; Electric vehicles; Magnetic flux; Permanent magnet motors; Synchronous motors; Torque control;
Conference_Titel :
Electrical Machines and Systems, 2001. ICEMS 2001. Proceedings of the Fifth International Conference on
Conference_Location :
Shenyang
Print_ISBN :
7-5062-5115-9
DOI :
10.1109/ICEMS.2001.970734
