Controller for switched reluctance motor

Details Controller for switched reluctance motor Controller for switched reluctance motor

1995-04-25

1996-12-31

Ro, Bentsu

Electricity: motive power systems

Synchronous motor systems

Hysteresis or reluctance motor systems

318254, H02P 505

Patent

active

055897525

ABSTRACT:
The generation of oscillations and acoustic noises which result from a rapid change in the magnetic flux upon switching the energization is suppressed, while simultaneously preventing a reduction in the driving efficiency and preventing a resonance from occurring. The current waveform as the current rises or fails is switched in accordance with the rotational speed of the SR motor to minimize a change in the magnetic flux, thus suppressing a reduction in the driving torque. A time interval required for the current to rise or fall is chosen to be greater than one-half the period of the natural frequency of SR motor.

REFERENCES:
patent: 4714039 (1987-12-01), Shimada
patent: 4943760 (1990-07-01), Byrne et al.
patent: 5281903 (1994-01-01), Oku et al.
patent: 5469215 (1995-11-01), Nashiki

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