Energization control of a switched reluctance motor

Details Energization control of a switched reluctance motor Energization control of a switched reluctance motor

1999-03-30

2000-12-05

Ro, Bentsu

Electricity: motive power systems

Synchronous motor systems

Hysteresis or reluctance motor systems

318254, H02P 146

Patent

active

061571601

ABSTRACT:
A switched reluctance motor is provided with multi-phase coils on the stator poles. An energization on angle, a first energization off angle, a second energization off angle and a target value corresponding to an angle of rotation are determined with respect to each coil on the basis of a target torque and a rotation speed. A pair of transistors which act as switching elements are both turned on when the angle of rotation is reached at the energization on angle. One transistor is turned off if a value of an actual current is target value of the current while the angle of rotation is not reached at the first energization off angle. The same transistor is turned off irrespective of the magnitude of the value of the actual current and the target value of the current when the angle of rotation is reached at the first energization off angle. The transistors are both turned off when the angle of rotation is reached at the second energization off angle.

REFERENCES:
patent: 4710686 (1987-12-01), Guzik
patent: 4879641 (1989-11-01), Rossi et al.
patent: 5552683 (1996-09-01), Dargent
patent: 5744922 (1998-04-01), Neary et al.
patent: 5801504 (1998-09-01), Endo et al.
patent: 5959419 (1999-09-01), Sugiyama

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