System for supression of underdamped oscillations in a.c....

Details System for supression of underdamped oscillations in a.c.... System for supression of underdamped oscillations in a.c....

H - Electricity

02

P

318/42

H02P 7/34 (2006.01)

Patent

CA 1201159

ABSTRACT A method and apparatus for reducing oscillations in input electrical power to a Ward- Leonard drive system which is subject to variations in mechanical loading, the technique utilizing a notch filter in the feedback path to the dc generator, the notch filter being turned to match the resonant frequency of the synchronous motor.

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