Resumo

RUZ HERNANDEZ, José Antonio; SUAREZ CERDA, Dionisio A.; SHELOMOV, Evgen  e  VILLAVICENCIO RAMIREZ, Alejandro. Predictive Control Based on an Auto-Regressive Neuro-Fuzzy Model Applied to the Steam Generator Startup Process at a Fossil Power Plant. Comp. y Sist. [online]. 2003, vol.6, n.3, pp.204-212. ISSN 2007-9737.

This paper presents an application of artificial intelligence techniques for the improvement of the operation of a thermoelectric unit. The capacity for empirical learning gained from artificial intelligence systems was utilized in the development of the strategy. A neuro-fuzzy model for the steam generator startup process is obtained from experimental data. Ultimately, the neuro-fuzzy model is combined with a predictive control algorithm to produce a control strategy for the heating stage of the steam generator. This provides the operators at the fossil power plant with the necessary information to efficiently accomplish the heating process. The information gained from the control strategy is not directly applied to an automatic control scheme; instead it is presented to the operator who then decides on its application. Therefore, in this way the information is used to develop a strategy that takes into consideration the personal capacity and the working routine of the operator. The simulation tests that were carried out demonstrated the feasibility and the beneficial results that can be obtained fromthe application of any of the three variants of predictive control proposed in this paper.

Palavras-chave : Predictive control; optimization; ANFIS; auto-regressive model; steam generator; fossil power plant.

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