Boots – shoes – and leggings
Patent
1997-02-18
1998-08-25
Voeltz, Emanuel Todd
Boots, shoes, and leggings
364141, 364153, 364162, 701100, 415 1, 415 26, 417300, 417301, 417307, G05D 1600
Patent
active
057989419
ABSTRACT:
A surge prevention control system for use with a dynamic compressor provides a multiple module controller for operating an anti-surge valve to bypass flow around the dynamic compressor. The multiple module controller includes a PID control module and a rate control module. The PID control module controls the anti-surge valve to control the operating point of the dynamic compressor about the surge control line. The rate control module uses the rate of approach of the operating point to the surge control line as its process variable. In the event of high rate of approach, the rate control module takes control of the anti-surge valve. The setpoint of the rate control module is adjusted to open the anti-surge valve to control the rate of approach to the surge control line to minimize the overshoot of the PID control.
REFERENCES:
patent: 4142838 (1979-03-01), Staroselsky
patent: 4156578 (1979-05-01), Agar et al.
patent: 4486142 (1984-12-01), Staroselsky
patent: 4697980 (1987-10-01), Keyes, IV et al.
patent: 4831534 (1989-05-01), Blotenberg
patent: 4944652 (1990-07-01), Blotenberg
patent: 4949276 (1990-08-01), Staroselsky et al.
patent: 4971516 (1990-11-01), Lawless et al.
patent: 5242263 (1993-09-01), Mondoloni
patent: 5306116 (1994-04-01), Gunn et al.
patent: 5347467 (1994-09-01), Staroselsky et al.
patent: 5508943 (1996-04-01), Batson et al.
Pp. 364-370 of Manual 80010 entitled "Programming Manual Oriented Editor", Prepared by Woodward Governor Co. for internal use. (No date).
Pp. 3&4 from the Steward & Stevenson Standard Control Manual for GE LM2500 turbine engine, prepared by Woodward Governor Co. (No date).
Pp. 1, 13-16 and 18 of "Compressor Antisurge Control" manual of Tri-Sen Co., Sep. 1993.
Excerpts from "Anti-Surge Control" manual of Dresser-Rand Control Systems. (No date).
"How to Cope with the High Speed of Approaching Surge", p. 7, Turbomachinery Maintenance, Jul. 1988.
"Basic TurboCompressor Control and Protection", 36 Turbomachinery International, Jul./Aug. 1995.
"Benefits of the Series 3 Control System" from Series 3 Antisurge Controller Manual No. IM31 of Woodward Governor Co. (No date).
"Compressor Surge Prevention" by Larry McLeister in Turbomachinery Control Conference 1995. (No date with month).
Todd Voeltz Emanuel
Wachsman Hal D.
Woodward Governor Company
LandOfFree
Surge prevention control system for dynamic compressors does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Surge prevention control system for dynamic compressors, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Surge prevention control system for dynamic compressors will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-40729