Braking control

Details Braking control Braking control

1986-06-20

1987-11-10

Shoop, Jr., William M.

Electricity: motive power systems

Braking

Dynamic braking

318757, H02P 318

Patent

active

RE0325430

ABSTRACT:
A regenerative braking system for a linear induction motor includes a control device to increase the frequency slip in a braking mode and reduce the regenerative capacity of the motor. The control device is regulated by sensing means which monitor the voltage of the external power conductor and increase the slip if the voltage exceeds a predetermined value. This reduces the power regenerated by the motor and prevents excessive voltages in the conductor. A latch prevents cycling between the full and reduced regenerative braking to prevent oscillation of the braking force and is reset upon selection of a motoring condition for the motor.

REFERENCES:
patent: 3657625 (1972-04-01), Miller et al.
patent: 3688171 (1972-08-01), Salihi et al.
patent: 3781614 (1973-12-01), Mokrytzki
patent: 3866702 (1975-02-01), Eastham
patent: 3890551 (1975-06-01), Plunkett

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