Control device for salient pole type permanent magnet motor

Details Control device for salient pole type permanent magnet motor Control device for salient pole type permanent magnet motor

1995-05-23

1997-07-22

Ip, Paul

Electricity: motive power systems

Synchronous motor systems

Hysteresis or reluctance motor systems

318138, 318254, 318723, 318811, H02P 600, H02P 763, B60L 1520

Patent

active

056507062

ABSTRACT:
A control device for a salient pole type permanent magnet motor. A magnetic flux of a magnet is detected by an arithmetic operation or actual measurement, and a demagnetization rate is calculated in accordance with the thus detected magnetic flux. A target of controlling the phase is calculated with reference to a demagnetization rate obtained by the calculation. The phase of a motor current is controlled depending on the target of control obtained by the calculation. Thus, a torque is prevented from lowering due to demagnetization of the magnet.

REFERENCES:
patent: 4039853 (1977-08-01), Koizumi et al.
patent: 4427934 (1984-01-01), Tupper
patent: 4794310 (1988-12-01), Lukas et al.
patent: 4811609 (1989-03-01), Nishibe et al.
patent: 4916368 (1990-04-01), Onoda et al.
patent: 5253127 (1993-10-01), Ozaki et al.
patent: 5280222 (1994-01-01), Von Der Heide et al.
patent: 5291115 (1994-03-01), Ehsani
patent: 5410235 (1995-04-01), Ehsani
patent: 5506487 (1996-04-01), Young et al.
"Maximum Torque Control of Inverse-Salient Pole Type PM Motor", 1991 National Convention Record I.E.E., K. Hatanaka et al., 1991, No. 580, pp. 6-10.

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