A new type of hierarchical optimising control algorithm is presented in the paper. A double loop ISOPE (Integrated System Optiniisation and Parameter Estimation) algorithm with price coordination is used, and dynamic model parameter estimation for real process derivatives approximation is employed instead of the difference equation approach, hence overcoming a main disadvantage of previous ISOPE techniques. This method is more suitable for real industrial application and, as an example of possible use, results from a simulation study of a power plant steady-state optimisation example are shown.
Amini, Z.1990. 'Algorithm development and analysis for on-line optimising control of large scale industrial processes', PhD Thesis, City University.
2.
Bamberger, W., and Isermann, R.1978. 'Adaptive steady-state optimisation of slow dynamic processes' , Automatica, 14, 223-230.
3.
Brdys, M.1983. 'Hierarchical optimising control of steady-state large-scale systems under model-reality differences of mixed type', Proc IFAC/IFORS symp on large-scale systems: theory and applications, Warsaw, Poland, 11-15 Jul, 49-57.
4.
Brdy M., and Roberts, P.D.1986. 'Optimal structures for steady state adaptive optimizing control of large scale industrial processes', Int J SystemSci, 17(10), 1449-1470.
5.
Brdy, M., and Roberts, P.D.1987. 'Convergence and optimality of modified two-step algorithm for integrated system optimisation and parameter estimation', Int J SystemsSci, 18(7), 1305-1322.
6.
Ellis, J.E., and Roberts, P.D.1982. 'Trade offs for integrated system optimization and parameter estimation', Large ScaleSystems, 3(3), 191-204.
7.
Findeisen, W., Bailey, F.N., Brdy, M., Malinowski, K., Tatjewski, P., and Wozniak, A.1980. Control and coordination in hierarchical systems, John Wiley and Sons, Chichester.
8.
Foord, D.G.1974. 'On-line optimisation of petrochemical complex', PhD Thesis , University of Cambridge.
9.
Lin, J., Han, C., Roberts, P.D., and Wan, B.1989. 'New approach to stochastic optimising control of steady state systems using dynamic information', Int J Control, 50(6), 2205-2235.
10.
Lin, J., Amini, Z., and Roberts, P.D.1991. 'New coordination strategy for on-line hierarchical optimising control of large scale industrial processes', Int J Control , 54(5), 1075-1096.
11.
Roberts, P.D.1979. 'An for steady state optimisation and parameter estimation', Int J SystemsSci, 10(7), 719-734.
12.
Rowe, I.H.1970. 'A bootstrap method for the static estimation of the model parameters'. Int J SystemsSci, 12, 712-738.
13.
Singh, M.G., and Titli, A.1978. Systems: Decomposition, Optimisation and Control, Pergamon Press, London.
14.
Vesely, V., and Augustin, P.1991. 'Optimisation of large scale technological processes' , Automatizace, 34(7-8), 176-180 (in Slovak).
15.
Voscinin, A.P.1988. Research memorandum, MEI Moscow, Dept of Automatisation (in Russian).
16.
Zhang, H., and Roberts, P.D.1990. 'On-line steady state optimisation of nonlinear constrained processes with slow dynamics', Trans Inst MC, 12(5), 251-261.
