Title :
High-speed torque control of brushless permanent magnet motors
Author :
Becerra, Roger C. ; Ehsani, Mehrdad
Author_Institution :
Dept. of Electr. Eng., Texas A&M Univ., College Station, TX, USA
fDate :
8/1/1988 12:00:00 AM
Abstract :
A method of converter control that improves the high-speed torque of brushless permanent-magnet (PM) motors is presented. The method consists of modulating the converter conduction intervals and their phase relative to the rotor position in order to deliver current to the stator windings at high speeds where the motor back EMF approaches the convertor rating. A microprocessor-based controller is used in the implementation. With this control, operation of the PM motor drive at its maximum ratings can be extended to higher speeds
Keywords :
controllers; electric drives; electrical engineering computing; permanent magnet motors; power convertors; torque control; brushless permanent magnet motors; converter conduction intervals; electric drives; high-speed torque; microprocessor-based controller; motor back EMF; motor drive; power convertor control; rotor position; stator windings; torque control; Brushless motors; Micromotors; Motor drives; Permanent magnet motors; Pulse inverters; Pulse width modulation inverters; Rotors; Stator windings; Torque control; Voltage;
Journal_Title :
Industrial Electronics, IEEE Transactions on
