Experimental control analysis of a fuel gas saturator. Final report. [Multivariable]
The multivariable control of the clean fuel gas saturator of a coal gasification process has been demonstrated. First principle process models described the process dynamics from which linear models were generated and used for the actual control designs. The multivariable control was designed, its response to transients simulated and the controls were implemented in a computer controller for a fuel gas saturator. The test results obtained for the gas flow transients showed good correlation with the computer simulations, giving confidence in the ability of the simulation to predict the plant performance for other transients. In this study, both time and frequency domain multivariable design techniques were applied to provide the best possible design and to determine their relative effectiveness. No clear guidelines resulted; it appears that the selection may be made on the basis of personal preference, experience or the availability of computer-aided design tools, rather than inherent technical differences. This EPRI/GE fuel gas saturator control demonstration has shown that multivariable design techniques can be applied to a real process and that practical controls are developed. With suitable process models, presently available computer-aided control design software allows the control design, evaluation and implementation to be completed in a reasonable time period. The application of these techniques to power generation processes is recommended.
- Research Organization:
- General Electric Co., Schenectady, NY (USA). Corporate Research and Development Dept.
- DOE Contract Number:
- AC21-80ET14928
- OSTI ID:
- 5989899
- Report Number(s):
- EPRI-AP-3799; ON: DE85006877
- Resource Relation:
- Other Information: Portions are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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COMPUTERIZED SIMULATION
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SYSTEMS ANALYSIS
FUEL GAS
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COAL GASIFICATION
COMBINED-CYCLE POWER PLANTS
DEMONSTRATION PROGRAMS
TRANSIENTS
FLUIDS
FUELS
GAS FUELS
GASES
GASIFICATION
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