Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.1/2228
Título: Discrete model based greenhouse environmental control using the branch & bound algorithm
Autor: Ferreira, P. M.
Ruano, A. E.
Palavras-chave: Model predictive control
Greenhouse environmental control
Optimisation problems
Search methods
Data: 2008
Editora: Elsevier
Citação: Ferreira, P. M.; Ruano, A. E. Discrete Model Based Greenhouse Environmental Control Using the Branch & Bound Algorithm, Trabalho apresentado em World Congress, In Proceedings of the 17th IFAC World Congress, 2008, Seoul, 2008.
Resumo: In this paper we propose the application of the Branch-and-Bound search algorithm to discrete model-based predictive control of greenhouses. The temperature control strategy is a mixture of temperature integration and difference between day and night temperatures. The general approach is presented and strategies are proposed in order to achieve a faster coverage of the solutions search space with reduced probability of loosing the optimal solution. The control energy requirements depend largely on the cost function coefficients and the evolution of the external climate. Fixed coefficients do not fully exploit the external climate predicted evolution in order to reduce energy consumption. A simple method is proposed to adapt on-line the cost function coefficients in a way that reduces energy consumption without significantly affecting control accuracy. The methods are briefly described and a subset of experimental and simulation results are presented.
Peer review: yes
URI: http://hdl.handle.net/10400.1/2228
DOI: http://dx.doi.org/10.3182/20080706-5-KR-1001.3461
ISBN: 9783902661005
Aparece nas colecções:FCT2-Artigos (em revistas ou actas indexadas)

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