Feedback linearization control for a distributed solar collector field

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• 作者：Cristina M. Cirre ; Manuel Berenguel ; Loreto Valenzuela ; Eduardo F. Camacho
• 关键词：Nonlinear control ; PID control ; Lumped-parameter-systems ; Feedback linearization ; Solar energy
• 刊名：Control Engineering Practice
• 出版年：2007
• 出版时间：December 2007
• 年：2007
• 卷：15
• 期：12
• 页码：1533-1544
• 全文大小：1013 K

文摘

This article describes the application of a feedback linearization technique for control of a distributed solar collector field using the energy from solar radiation to heat a fluid. The control target is to track an outlet temperature reference by manipulating the fluid flow rate through the solar field, while attenuating the effect of disturbances (mainly radiation and inlet temperature). The proposed control scheme is very easy to implement, as it uses a numerical approximation of the transport delay and a modification of the classical control scheme to improve startup in such a way that results compared with other control structures under similar conditions are improved while preserving short commissioning times. Experiments in the real plant are also described, demonstrating how operation can be started up efficiently.