PM brushless DC motor drive with a new power converter topology

Conference · Sun Dec 31 04:00:00 EST 1995

OSTI ID:419523

Krishnan, R; Lee, S ^[1]

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1. Virginia Polytechnic Inst. and State Univ., Blacksburg, VA (United States)

With the growing potential for widespread use of permanent magnet brushless dc motor drives (hereafter referred to as PMBDC drives) in many low-cost applications such as in hvac, refrigerators, and freezers in houses and small velocity servos in process industries, it has become important to minimize the cost. One obvious place for cost reduction is in the cost of the inverter and its associated controller. With that perspective, a novel application of the converter topology for the PMBDC known as C-dump in the switched reluctance motor drives is proposed in this paper. The advantages and disadvantages of this topology vis-a-vis the conventional 3 phase H-bridge converter, are highlighted from the points of view of economy in switches, volt ampere rating, associated controller cost, and packaging. Design considerations for the PMBDC motor are derived for use with the proposed converter topology. The operational and design characteristics of this converter driven PMBDC drive are derived for four quadrant performance. Guidelines for the design of the proposed performance. Guidelines for the design of the proposed topology are derived and presented in the paper. Experimental results from a laboratory prototype are presented to validate the feasibility of the proposed PMBDC drive system.

• OSTI ID: 419523
• Report Number(s): CONF-9510203--
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
DC SYSTEMS
ELECTRIC MOTORS
ENERGY EFFICIENCY
FREEZERS
INVERTERS
POWER SUPPLIES
REFRIGERATORS
RESIDENTIAL BUILDINGS
SPACE HVAC SYSTEMS