Title :
Towards delta domain in predictive control-an application to the Space Crystal Furnace TITUS
Author_Institution :
Inst. of Comput. Sci., Humboldt Univ., Berlin, Germany
Abstract :
A formulation of predictive control which uses a closely to the continuous time plant related delta description is given. Starting with the derivation of an end-point state weighted generalized predictive controller a polynomial controller representation is given and the theoretical value of the endpoint state weighting matrix is derived. The robustness with respect to additive plant/model mismatch is involved by ℋ∞ analysis. The Space Crystal Furnace TITUS is modeled using strongly coupled symmetric composite systems. A final simulation underlines the improved accuracy of the temperature gradient
Keywords :
H∞ control; control system analysis; control system synthesis; crystal growth from melt; furnaces; identification; large-scale systems; polynomials; predictive control; process control; robust control; zero gravity experiments; zone melting; ℋ∞ analysis; Bridgman method; Space Crystal Furnace; TITUS; delta domain; end-point state weighted generalized predictive controller; floating zone heating; gradient freezing; polynomial controller representation; strongly coupled symmetric composite systems; temperature gradient; Application software; Computer science; Furnaces; Poles and zeros; Polynomials; Predictive control; Predictive models; Sampling methods; Space heating; Temperature;
Conference_Titel :
Control Applications, 1999. Proceedings of the 1999 IEEE International Conference on
Conference_Location :
Kohala Coast, HI
Print_ISBN :
0-7803-5446-X
DOI :
10.1109/CCA.1999.806666
