Title Event-based MPC for defocusing and power production of a parabolic trough plant under power limitation
Authors Sanchez, A. J., Gallego, A. J., ESCAÑO GONZÁLEZ, JUAN MANUEL, Camacho, E. F., ESCAÑO GONZÁLEZ, JUAN MANUEL
External publication No
Means Sol. Energy
Scope Article
Nature Científica
JCR Quartile 1
SJR Quartile 1
JCR Impact 4.67400
Area International
Web https://www.scopus.com/inward/record.uri?eid=2-s2.0-85053752561&doi=10.1016%2fj.solener.2018.09.044&partnerID=40&md5=dad60bdc1b92b75877dee1ab6861ed4f
Publication date 01/11/2018
ISI 000451499500055
Scopus Id 2-s2.0-85053752561
DOI 10.1016/j.solener.2018.09.044
Abstract Optimal operation of a solar plant is generally understood as a tracking of the optimal working temperatures which maximize the net electric power. However, a commercial solar plant may receive a limitation from the Transmission System Operator due to saturation of the electrical grid. In these situations the plant moves to an operation mode in which the objective is not maximum production but compliance with the orders of the Transmission System Operator. The paper proposes an Event-Based Gain Scheduling Generalized Predictive Control strategy for electric power production reference tracking when power limitations are imposed by the Transmission System Operator. Gain Scheduling Generalized Predictive Controllers are proposed to control fourth and third collector defocus in order to prevent heating fluid temperature from exceeding the limits of the manufacturer and therefore, avoid oil degradation. A 50 MW parabolic solar trough plant model has been used to design and validate the strategy. Simulation results are presented showing the advantages of using the proposed strategy.
Keywords Solar parabolic; Model Predictive Control; Collector defocus; Electric power limitation
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