On-line switching between two control parameters

Details On-line switching between two control parameters On-line switching between two control parameters

1979-07-02

1980-11-18

Truhe, J. V.

Electricity: motive power systems

Generator-fed motor systems having generator control

Automatic generator control and/or with time-delay means

318156, 318255, H02P 524

Patent

active

042348323

ABSTRACT:
A control method and circuit providing smooth transition between two regulating modes involving two regulating parameters, one active and one inactive. The method comprises the steps of providing a reference signal and developing a signal representing the inactive parameter. The two signals are then compared to provide an inactive output signal that is indicative of any difference existing between them. Another signal is developed that represents the active parameter, and this signal is compared to the inactive output signal. The inactive output signal is then forced continuously to the value of the signal representing the active parameter when the values of the two signals are different. Change from the one parameter and mode to the other parameter and mode can now be made without a disturbing effect.

REFERENCES:
patent: 3882368 (1975-05-01), Carleton
patent: 4031372 (1977-06-01), Davis
patent: 4053746 (1977-10-01), Brautenbah et al.
patent: 4056331 (1977-11-01), Sato

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