Multi-constraint control of a compression system

Details Multi-constraint control of a compression system Multi-constraint control of a compression system

1978-11-29

1980-08-19

Freeh, William L.

Pumps

Condition responsive control of pump drive motor

Single motor control element responsive to means sensing...

417 20, 417 22, 417 47, F04B 4906

Patent

active

042181917

ABSTRACT:
A compression system is controlled so as to maintain the actual suction pressure as close as possible to a desired suction pressure without exceeding the operational limitations of the compression system. The speed of the compression system is manipulated so as to maintain the actual suction pressure equal to a desired suction pressure if no compression system constraint is encountered. If a compression system constraint is encountered, the compression system speed is manipulated so as to operate against the particular constraint encountered without exceeding that particular constraint.

REFERENCES:
patent: 3520133 (1970-07-01), Loft et al.
patent: 3965674 (1976-06-01), Hobbs et al.
patent: 3979655 (1976-09-01), Rutshtein
patent: 3994623 (1976-11-01), Rutshtein et al.
patent: 4102604 (1978-07-01), Rutshtein et al.
patent: 4108574 (1978-08-01), Bartley et al.
patent: 4142838 (1979-03-01), Staroselsky

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