Compressor surge detection system

Details Compressor surge detection system Compressor surge detection system

1988-11-07

1990-07-10

Stout, Donald E.

Pumps

Condition responsive control of pump drive motor

Having timer or delay means

417 26, 417 27, 417280, F04B 4900

Patent

active

049403915

ABSTRACT:
In a compressor system, surge detection is provided by sensing the current of the motor driving the compressor and reading oscillations of the current about the average thereof and above and below two opposite threshold levels from such average current and counting the polarity changes within a time interval containing so many samples of the current and defining a sliding window.

REFERENCES:
patent: 3380650 (1968-04-01), Drummond et al.
patent: 3778695 (1973-12-01), Bauer, Jr.
patent: 4519748 (1985-05-01), Murphy et al.
patent: 4546618 (1985-10-01), Kountz et al.
patent: 4581900 (1986-04-01), Lowe et al.
patent: 4616483 (1986-10-01), Leonard
patent: 4686834 (1987-08-01), Haley et al.
Gregory K. McMillan, Centrifugal and Axial Compressor Control, pp. 57-72 (Section 6, Surge Control), Published by the Instrument Society of America, Aug. 1983.

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