Descriptors: * BOILERS; ‘FEEDBACK CONTROL; ‘OPTIMAL CONTROL; ‘PHOTOTHERMAL CONVERSION; ‘SOLAR ENERGY CONVERSION; ‘TEMPERATURE CONTROL; ENERGY TECHNOLOGY; FUNCTIONAL ANALYSIS; LINEAR EQUATIONS; QUADRATIC EQUATIONS; REGULATORS; STEAM FLOW Subject Classification: 7544 Energy Production & Conversion (1975- ) Modelling, identification, and adaptive control of THEK type solar thermal conversion module. (French thesis) Modelisation, identification et commande adaptative d'un module de conversion helio- thermique de type THEK MIGNOT, J. Toulouse III, Universite, Docteur (3e cycle) Thesis, 1983, 148 p. In French. 47 Refs. Language: French Country of Publication: France Document Type: THESIS Most documents available from AI A A Technical Library Journal Announcement: IAA8402 A numerical model is devised for the thermal behavior of an individual, parabolic dish, solar thermal conversion unit, and algorithms are defined for adaptive control of the system. The entire system is based on the THEK installation, which is intended to supply industrial heat from a field of concentrators. Attention is given to linear and nonlinear behavior of the system, to the governing parameters, and to a least squares linear model for the system, with account taken of saturations in the control system. The adaptive control laws are built on the properties of positively invariant systems, which furnish robustness and simplicity to simulations of working systems. (M.S.K.) Source of Abstract (Subfile): AIAA/TIS Descriptors: ‘ADAPTIVE CONTROL; ‘SOLAR COLLECTORS; ‘SOLAR THERMAL ELECTRIC POWER PLANTS; ‘SYSTEM IDENTIFICATION, SYSTEMS SIMULATION; ALGORITHMS; CONTROL THEORY; LINEAR SYSTEMS; PARAMETERIZATION; REAL TIME OPERATION Subject Classification: 7544 Energy Production & Conversion (1975- ) Demonstration of large electron-beam energy extraction by a tapered-wiggler free-electron laser GROSSMAN, W. M.; SLATER, J. M.; QUIMBY, D. C.; CHURCHILL, T. L. (Mathematical Sciences Northwest, Inc., Bellevue, WA); ADAMSKI, J.; KENNEDY, R. C.; SHOFFSTALL, D. R. (Boeing Aerospace Co., Seattle, WA) Applied Physics Letters (ISSN 0003-6951), vol. 43, Oct. 15, 1983, p. 745-747. 6 Refs. Contract No.: N00014-82-C-0704; F49620-81-C-0079 Language: English Country of Origin: United States. Country of Publication: United States Document Type: JOURNAL ARTICLE Most documents available from AIAA Technical Library Journal Announcement: IAA8401
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