Variable Frequency AC Motor Controller Using MCT's

Award Information
Agency: Department of Defense
Branch: Defense Advanced Research Projects Agency
Contract: N/A
Agency Tracking Number: 28632
Amount: $99,000.00
Phase: Phase I
Program: SBIR
Awards Year: 1995
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
2763 Culver Avenue, Dayton, OH, 45429
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 L. John Adams
 (513) 296-1806
Business Contact
Phone: () -
Research Institution
A power controller is described which has increased power capability (50-100 Hp range), improved efficiency, reduced cost, and increased control capability for control of onboard auxillary power sources. A full four-quadrant control inverter uses a variable frequency, quasi-resonant four-quadrant H-bridge configuration and a phase shifted PWM controller for control of a three phase AC induction motor. Use of second generation P-MCT's improves inverter efficiency. Phase controlling the motor as a two-speed transmission. A custom hybrid microprocessor based system controller gives the desired control capability in a small, low cost, low weight, package suitable for volume production. ANTICIPATED BENEFITS: The single stage inverter concept offers a performance advantage (low loss, reduced parts count) and has wide application in motor control for electric vehicles, tanks, all electric aircraft and multifunctional switching in Navy and Marine power systems.

* Information listed above is at the time of submission. *

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