期刊缩写       REV IBEROAM AUTOM IN

期刊全称       REVISTA IBEROAMERICANA DE AUTOMATICA E INFORMATICA INDUSTRIAL 《拉丁美洲工业自动化杂志》

出版国家       SPAIN

出版周期       Quarterly

期刊ISSN       1697-7912

 

 

Article

Control de Plantas Solares con Generación Automática de Consignas

 

Cristina M. Cirre, Loreto Valenzuela, Manuel Berenguel, Eduardo Camacho

Revista iberoamericana de automatica e informatica industrial (RIAI), ISSN 1697-7912, Vol. 1, No. 1, 2004, pags. 50-56 01/2010; DOI:

Source: OAI

ABSTRACT En este trabajo se muestran los resultados de operación de un campo de colectores solares del tipo cilindro parabólico de forma automática con una estructura de control por adelanto en paralelo con un controlador tipo I-PD que incorpora como principal novedad un sistema de generación automática de consignas. El objetivo de control para este sistema es mantener la temperatura del fluido a la salida del campo a un valor establecido, compensando las perturbaciones a las que está sometida la planta con dinámica fuertemente no lineal.

 

Serial grey-box model of a stratified thermal tank for hierarchical control of a solar plant

 

Manuel R. Arahal, Cristina M. Cirre, Manuel Berenguel

 

ABSTRACT The ACUREX collector field together with a thermal storage tank and a power conversion system forms the Small Solar Power Systems plant of the Plataforma Solar de Almería, a facility that has been used for research for the last 25 years. A simulator of the collector field produced by the last author has been available to and used as a test-bed for control strategies. Up to now, however, there is not a model for the whole plant. Such model is needed for hierarchical control schemes also proposed by the authors. In this paper a model of the thermal storage tank is derived using the Simultaneous Perturbation Stochastic Approximation technique to adjust the parameters of a serial grey-box model structure. The benefits of the proposed approach are discussed in the context of the intended use, requiring a model capable of simulating the behavior of the storage tank with low computational load and low error over medium to large horizons. The model is tested against real data in a variety of situations showing its performance in terms of simulation error in the temperature profile and in the usable energy stored in the tank. The results obtained demonstrate the viability of the proposed approach.