Adaptive nonlinear control of a distributed collector solar field

Feedback linearization control for a distributed solar collector field

“…During recent years, many control methods have been employed at the Plataforma Solar de Almerı´a (Spain) ACUREX distributed solar collector field, those more related to the results shown in this paper ranging from PID control (Camacho, Berenguel, & Rubio, 1997), cascade control , model predictive control (Camacho et al, 1997;, adaptive control and gain scheduling control (Berenguel & Camacho, 1996;Camacho, Berenguel, & Bordo´ns, 1994;Camacho, Berenguel, & Rubio, 1994;Johansen, Hunt, & Petersen, 2000;Meaburn & Hughes, 1994;Pickhardt, 2000a), internal model control (Farkas & Vajk, 2002), nonlinear control (Barao, Lemos, & Silva, 2002;Cirre, Valenzuela, Berenguel, & Camacho, 2005;Igreja, Lemos, Barao, & Silva, 2003;Igreja, Lemos, Barao, & Silva, 2005;Johansen & Storaa, 2002;Pickhardt, 2000b;Silva, Rato, & Lemos, 2002), robust control (Cirre, Moreno, & Berenguel, 2003;Ortega, Rubio, & Berenguel, 1997), fuzzy logic control Flores, Saez, Araya, Berenguel, & Cipriano, 2005;Juuso, Balsa, & Valenzuela, 1998; & Camacho, 1995) and neural network-based controllers (Arahal, Berenguel, & Camacho, 1998;Gil, Henriques, Carvalho, Duarte-Ramos, & Dourado, 2002;Pereira & Dourado, 2002). A feedforward action is required in most cases to mitigate the effect of disturbances in the signal to be controlled (Berenguel, Camacho, & Rubio, 1993;Camacho, Rubio, & Hughes, 1992;Camacho et al, 1997;Carotenuto, LaCava, Muraca, & Raiconi, 1986;Meaburn & Hughes, 1996;R...…”

“…Consequently, the model equations become linear and it is possible to achieve good performance with wide-amplitude step responses. In the approach followed by Igreja et al (2003), the PDE describing the field is approximated by a bilinear lumped-parameter model and an adaptive controller was designed by using exact linearization along with Lyapunov feedback. The results were extended in Igreja et al (2005) using a higher order description of the system found by PDE discretisation using the orthogonal collocation method in an adaptive receding-horizon control strategy.…”

Robust constrained predictive feedback linearization controller in a solar desalination plant collector field

“…As explained in Cirre et al (2007) and Roca et al (2008), feedback linearization control (FLC) has been applied in solar fields with promising results (Barão, Lemos, & Silva, 2002;Igreja, Lemos, Barao, & Silva, 2003;Igreja, Lemos, Barao, & Silva, 2005;Pin, Falchetta, & Fenu, 2008;Silva, Rato, & Lemos, 2002;Silva, Lemos, & Rato, 2003). One way to deal with the drawbacks of FLC (Slotine & Li, 1991) and improve performance is to combine FLC with model predictive control, which naturally includes constraint handling.…”

Nonlinear continuous-time generalized predictive control of solar power plant

“…In Igreja et al [2], a nonlinear control using exact feedback linearization and Lyapunov's approach is presented. In Camacho et al [3], a survey on advanced control strategies tested in the Acurex experimental plant at the PSA (Solar Plant of Almería in Spain) is described.…”