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Tracking control system using an incident radiation angle microsensor
Quero Reboul, José Ma.; Aracil Fernández, Carmen; García Franquelo, Leopoldo; Ricart Campos, Jordi; Ortega Villasclaras, Pablo Rafael; Domínguez Pumar, Manuel; Castañer Muñoz, Luis María; Osuna, Rafael
Universitat Politècnica de Catalunya. Departament d'Enginyeria Electrònica; Universitat Politècnica de Catalunya. MNT - Grup de Recerca en Micro i Nanotecnologies
For some industrial applications, an accurate estimation of a light source position is needed. That is the case for a heliostat, a device that projects sunlight onto a focus hundreds of meters away from its aiming point. In this paper, we present a novel sensor design for generating an alignment error signal. Included is a detailed study of its response, which shows that certain geometrical design parameters are necessary to achieve desired accuracy. This sensor has been implemented using microelectromechanical system techniques to achieve a robust structure at low cost and it has been successfully applied to sun-tracking systems. Experimental results obtained in field tests are included.
Peer Reviewed
Àrees temàtiques de la UPC::Enginyeria electrònica::Microelectrònica
Microelectromechanical systems.
Geometrical design parameters
Incident radiation angle microsensor
Light source position estimation
Power generation control
solar energy concentrators
Solar power stations
sun-tracking systems
Tracking control systems
Sistemes microelectromecànics

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