Title :
On the feasibility of four-switch three-phase BLDC motor drives for low cost commercial applications: topology and control
Author :
Lee, Byoung-kuk ; Kim, Tae-Hyung ; Ehsani, Mehrdad
Author_Institution :
Dept. of Electr. Eng., Texas A&M Univ., College Station, TX, USA
fDate :
1/1/2003 12:00:00 AM
Abstract :
The main purpose of this paper is to describe a low cost four-switch brushless DC (BLDC) motor drive for commercial applications. For effective utilization of the developed system, a novel direct current controlled PWM scheme is designed and implemented to produce the desired dynamic and static speed-torque characteristics. Also, the feasibility of the four-switch converter is extended to two-phase BLDC motor drives and the six-switch converter for power factor correction and speed control. The operational principle of the four-switch BLDC motor drive and the developed control scheme are theoretically analyzed and the performance is demonstrated by both simulation and experimental results.
Keywords :
DC motor drives; PWM power convertors; angular velocity control; brushless DC motors; electric current control; machine control; power factor correction; switching convertors; direct current controlled PWM; dynamic speed-torque characteristics; four-switch converter; four-switch three-phase BLDC motor drives; low cost commercial applications; operational principle; power factor correction; six-switch converter; speed control; static speed-torque characteristics; topology; Analytical models; Brushless DC motors; Control systems; Costs; Motor drives; Performance analysis; Power factor correction; Pulse width modulation; Topology; Velocity control;
Journal_Title :
Power Electronics, IEEE Transactions on
DOI :
10.1109/TPEL.2002.807125
