Starting sequence for reluctance motor drives operating without

Details Starting sequence for reluctance motor drives operating without Starting sequence for reluctance motor drives operating without

1985-12-09

1987-02-10

Shoop, Jr., William M.

Electricity: motive power systems

Open-loop stepping motor control systems

318685, H02P 800

Patent

active

046425438

ABSTRACT:
A reluctance motor is started from standstill and accelerated to the rated speed of the motor without using a shaft position sensor. In this type of reluctance drive, if the motor fails to start and loses synchronism with the stepping commands, the resulting average current drawn by the motor will exceed the current drawn if the motor were in synchronism. If such excessive current is sensed, the starting sequence is re-tried.

REFERENCES:
patent: 4096420 (1978-06-01), Gorling et al.
patent: 4251758 (1981-02-01), Pedersen et al.
patent: 4454458 (1984-06-01), Holland
patent: 4455513 (1984-06-01), Fulton et al.

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