Title :
Servo performance of a BLDC drive with instantaneous torque control
Author :
Low, Teck-Seng ; Tseng, King-Jet ; Lee, Tong-Heng ; Lock, Kai-Sang
Author_Institution :
Dept. of Electr. Eng., Nat. Univ. of Singapore, Singapore
Abstract :
Brushless DC (BLDC) drives with permanent-magnet motors are suitable as servo-motors if properly controlled. Their performance can be superior to that of conventional DC servos if NdFeB or rare-earth cobalt magnets are used for motor excitation and novel control techniques are implemented for its servo performance. The availability of inexpensive but high-performance digital signal processors allows the implementation of a novel instantaneous torque control algorithm for the BLDC drive applications. Described are the servo performances of a BLDC drive with instantaneous torque control. To assess the quality of this controller, its performance is compared with those obtained using conventional current controllers. Details of the control strategies are also described.<>
Keywords :
DC motors; electric drives; machine control; permanent magnet motors; servomotors; torque control; NdFeB; brushless DC drive; instantaneous torque control; permanent-magnet motors; rare-earth cobalt magnets; servo-motors; Availability; Brushless DC motors; Cobalt; DC motors; Digital signal processors; Permanent magnet motors; Servomechanisms; Servomotors; Signal processing algorithms; Torque control;
Conference_Titel :
Industry Applications Society Annual Meeting, 1990., Conference Record of the 1990 IEEE
Conference_Location :
Seattle, WA, USA
Print_ISBN :
0-87942-553-9
DOI :
10.1109/IAS.1990.152225
