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Permanent Magnet AC Disc Motor Electric Vehicle Drive
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English
Abstract
The principal objective of this work was to establish the feasibility of the axial flux permanent magnet ac disc motor with load-commutated inverter as a candidate for an electric passenger vehicle drive system component.
Three motors were built in the course of the project. The first, known as the proof-of-principal (POP) motor, was built to demonstrate the electromagnetic concepts and establish design data. It was built with rare earth magnets and a dc motor type random winding. The second motor, known as the Functional Model A [FM(A)] motor, was built for full performance and high speed (11,000 rpm). Alnico 8E magnets were used to stimulate manganese-aluminum. A three-layer air gap winding was used in the stator. This motor did not perform as predicted due primarily to demagnetization of the magnets and, secondarily, to imbalance in the windings. The third motor, known as Functional Model B [FM(B)], corrected these problems by use of rare earth magnets and a novel, single-layer chain winding. The motor performed well and in excess of contract requirements electromagnetically, thermally, and mechanically. A peak efficiency of 93% was measured at cycling power when the motor was being driven by the inverter. Several modifications were proposed to raise the efficiency to 95%.
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Authors
Citation
Kliman, G., "Permanent Magnet AC Disc Motor Electric Vehicle Drive," SAE Technical Paper 830111, 1983, https://doi.org/10.4271/830111.Also In
References
- Plunkett, A.B. Kliman, G.B. “Electric Vehicle AC Drive Development,” SAE 800061 , Congress and Exhibition Detroit, MI Feb. 1980
- General Electric Company “Near Term Electric Vehicle Phase II Final Report,” March 1980
- Wilson, J.W.A. “The Drive System of the DOE Near Term Electric Test Vehicle (ETV-1),” Drive Electric ‘80 London Oct. 1980
- Peak, S.C. “Improved Transitorized AC Motor Controller for Battery Powered Urban Electric Passenger Vehicles,” Sept. 1982 General Electric Company
- Peak, S.C. Plunkett, A.B. “Transitorized PWM Inverter Induction Motor Drive System,” IEEE-IAS Annual Meeting San Francisco Oct. 1982
- General Electric Company “Regenerative Flywheel Energy Storage System,” II June 1980 Lawrence Livermore Laboratory
- Plunkett, A.B. Turnbull, F.G. “Load Commutated Inverter/Synchronous Motor Drive Without a Shaft Positive Sensor,” IEEE-IAS Trans. IA-15 No. 1 Jan/Feb. 1979
- Kliman, G.B. “Advanced AC Permanent Magnet Axial Flux Disc Motor for Electric Passenger Vehicle,” Oct. 1982 General Electric Company