Induction motor control apparatus and method for restart when ro

Details Induction motor control apparatus and method for restart when ro Induction motor control apparatus and method for restart when ro

1985-10-30

1987-08-04

Salce, Patrick R.

Electricity: motive power systems

Induction motor systems

Primary circuit control

318808, 318812, H02P 534

Patent

active

046848681

ABSTRACT:
AC induction motor energized by an inverter coupled with a DC power source. Upon shutdown of the inverter because of a fault condition or a rail gap between adjacent power sources, if the motor rotating frequency is greater than a minimum frequency then a decreased motor voltage is applied to the motor and increased as a ramp over a provided time delay period, after which the motor slip is controlled to provide a desired motor torque that is increased over a subsequent time delay period.

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patent: 4544873 (1985-10-01), Salihi et al.

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