Test of ACW-gradient optimisation algorithm in computation of an optimal control policy for achieving acceptable nitrate concentration of greenhouse lettuce

Mathematics and Computers in Simulation

Volumn 65, Issue 1-2, 2004, Pages 117-126

  De Graaf, Stefan C ^a   Stigter, Johannes D ^a   Van Straten, Gerrit ^a  

^a WAGENINGEN UNIVERSITY   (Netherlands)

Author keywords

Input bounds; Lettuce; Nicolet; Nitrate; Optimal control; Terminal constraints

Indexed keywords

AGRICULTURE; ALGORITHMS; COMPUTATIONAL METHODS; CONSTRAINT THEORY; FUNCTIONS; GREENHOUSE EFFECT; NITRATES; OPTIMIZATION; PROBLEM SOLVING; VECTORS;

INPUT BOUNDS; LETTUCE; NICOLET; TERMINAL CONSTRAINTS;

OPTIMAL CONTROL SYSTEMS;

EID: 1842426346     PISSN: 03784754     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.matcom.2003.09.020     Document Type: Conference Paper

References (7)

1. A. Weinreb, Optimal Control with Multiple Bounded Inputs, Department of Electrical Engineering, Stanford University, Stanford, 1985.
2. Weinreb A., Bryson A.E. Optimal control of systems with hard control bounds. IEEE Trans. Automat. Control. 30(11):1985;1135-1138.
3. I. Ioslovich, I. Seginer, Acceptable nitrate concentration of greenhouse lettuce: an optimal control policy for temperature, plant spacing and nitrate supply, in: Proceedings of the Agricontrol 2000, Wageningen, The Netherlands, IFAC, Wageningen University and Research Centre, Royal Dutch Institute of Engineers, 2000.
4. R.F. Stengel, Optimal Control and Estimation, Dover Publications, New York, 1994.
5. A.E. Bryson, Dynamic Optimization, Addison-Wesley, Menlo Park, 1999.
6. Seginer I., van Straten G. Lettuce growth limited by nitrate supply. Acta Horticult. 507:1999;141-148.
7. Seginer I., Buwalda F., et al. Nitrate concentration in greenhouse lettuce: a modelling study. Acta Horticult. 456:1998;189-197.