Publicação: Design and development of a low-cost solar tracker
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To become competitive, ultimately, photovoltaics should have its costs reduced and use photovoltaic systems of greater efficiency. The main steps in this direction are the use of new materials, the improvement in the manufacture of modules and the adoption of techniques of maximum power point tracking and of solar tracking. This article aims at presenting the project and development of an azimuth and elevation solar tracker, based on a new conception of the positioning sensor, composed of an array of four photoresistors. The two direct current motors that operate in the vertical and horizontal axes are controlled by a proportional-integral microcontroller. The conditions of the project were low cost, small energy consumption and versatility. The microcontroller can also incorporate a maximum power point tracking algorithm. The performance of solar tracker prototype in the initial phase of field tests can be considered appropriate. © Institution of Engineers Australia, 2013.
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Control, Energy, Photovoltaic energy, Solar sensor, Solar tracker, Design and Development, Maximum Power Point Tracking, Maximum Power Point Tracking algorithms, Proportional-integral, Solar sensors, Energy utilization, Photovoltaic cells, Sensors, Solar power generation
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Inglês
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Australian Journal of Mechanical Engineering, v. 11, n. 2, p. 139-150, 2013.
