Apparatus for the prevention of critical process variable excursions in one or more turbomachines
US7594386B2 · kind B2 · utility
75Cited by
10References
15Claims
0Family size
Assignee
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Key dates
| Filing date | Jun 29, 2006 |
| Grant date | Sep 29, 2009 |
| Priority date | — |
| Expiry date | Apr 26, 2027 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D27/0207
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Many variables in processes such as those using turbocompressors and turbines must be limited or constrained. Limit control loops are provided for the purpose of limiting these variables. By using a combination of closed loop and open loop limit control schemes, excursions into unfavorable operation can be more effectively avoided. Transition between open loop and closed loop may be enhanced by testing the direction and magnitude of the rate at which the limit variable is changing. If the rate of change indicates recovery is imminent, control is passed back to the closed loop limit control function.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.