Automatic controller for electrostatic precipitator

Details Automatic controller for electrostatic precipitator Automatic controller for electrostatic precipitator

1974-10-07

1976-05-25

Pellinen, A. D.

Electricity: power supply or regulation systems

Remote sensing

55105, 323 24, B03C 368

Patent

active

039597156

ABSTRACT:
By using a hill climbing technique, the input energy to the electrostatic precipitator electrodes is automatically increased until the electrode potential decreases. In response to the electrode potential decrease, the input energy is decreased. The electrode potential is controlled by an automatic voltage controller including an electrode potential sense circuit. The controller includes a digital store for increasing the count of the store and means responsive to the count in the store provide an output signal related to the count and means responsive to the signal from the electrode potential sensing circuit which is indicative of a fall in the electrode potential is used to reduce the count in the store. The count in the store is converted into an analog voltage used to control the duty cycle of thyristers and thus the precipitator electrode potential.

REFERENCES:
patent: 3018431 (1962-01-01), Goldstein
patent: 3379960 (1968-04-01), May
patent: 3491283 (1970-01-01), Johnston
patent: 3529404 (1970-09-01), Quissek
patent: 3562625 (1971-02-01), Broek
patent: 3577708 (1971-05-01), Drenning et al.
patent: 3643405 (1972-02-01), Vukasovic et al.

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