Title :
A new power converter topology for PM brushless DC motor drives
Author :
Krishnan, R. ; Vijayraghavan, P.
Author_Institution :
Bradley Dept. of Electr. & Comput. Eng., Virginia Tech., Blacksburg, VA, USA
fDate :
31 Aug-4 Sep 1998
Abstract :
A new converter topology for permanent magnet brushless DC (PMBDC) motors is proposed in this paper. It has the advantages of minimum number of power switching devices, equal voltage rating for all the switching devices and variable DC link voltage for application to the motor. The operational characteristics of this converter-driven PMBDC drive are derived for four-quadrant performance. The feasibility of the proposed converter topology for the four-quadrant PMBDC motor drive system is validated by extensive dynamic simulation of the motor drive system. The simulations verify the advantages of the drive in low speed operation with lower switching ripple and hence lower torque ripple. The merits and demerits of the converter are derived. A comparison of the proposed converter with the 3 phase full-wave converter is given
Keywords :
DC motor drives; brushless DC motors; permanent magnet motors; power convertors; switching circuits; torque; 3 phase full-wave converter; PM brushless DC motor drives; dynamic simulation; equal voltage rating; four-quadrant PMBDC motor drive system; low speed operation; lower switching ripple; lower torque ripple; operational characteristics; power converter topology; switching devices; Brushless DC motors; DC motors; Diodes; Motor drives; Permanent magnet motors; Reluctance motors; Switches; Switching converters; Topology; Voltage;
Conference_Titel :
Industrial Electronics Society, 1998. IECON '98. Proceedings of the 24th Annual Conference of the IEEE
Conference_Location :
Aachen
Print_ISBN :
0-7803-4503-7
DOI :
10.1109/IECON.1998.724180
