Electricity: motive power systems – Synchronous motor systems
Patent
1997-06-06
1999-03-16
Ro, Bentsu
Electricity: motive power systems
Synchronous motor systems
318139, 318432, H02P 2100, B60L 1520
Patent
active
058834842
ABSTRACT:
A controller for driving permanent magnet type synchronous motor. A motor terminal voltage or IPM (intelligent power module) input voltage necessary to achieve a target operating point is computed based on torque command and motor revolution. When the computed voltage exceeds an actual battery voltage, a booster is inserted between the battery and IPM, and the battery voltage, after being boosted, is applied between the direct current terminals of the IPM. Since the motor terminal voltage can be made so as to not exceed the boosted voltage even if the motor terminal voltage rises along with a rise in revolution and speed voltage, field weakening control becomes unnecessary.
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patent: 4538100 (1985-08-01), Tuten et al.
patent: 4870332 (1989-09-01), Coghran et al.
patent: 5246479 (1993-09-01), Gami et al.
patent: 5569995 (1996-10-01), Kusaka et al.
W. Juettner, et al., ETZ Elektrotechnische Zeitschrift, vol. 115, No. 15, pp. 852 to 854, 856 and 857, "Permanentmagneterregte Synchronmaschine ALS Traktionsmotor", Aug. 1994, (with English translation).
J. Jelonkiewicz, et al., EPE 95: 6th. European Conference on Power Electronics and Application, vol. 2, No. 6, pp. 2.895 to 2.900, "Comparative Study of drives for battery powered Light Vehicles", Sep. 19 to 21, 1995.
Patent Abstracts of Japan, vol. 096, No. 012, Dec. 26, 1996, JP 08-214592, Aug. 20, 1996.
Ro Bentsu
Toyota Jidosha & Kabushiki Kaisha
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