Optimal Strategy for the Improvement of the Overall Performance of Dual-Axis Solar Tracking Systems
Solar Tracking Systems are useful to increase the generation efficiency of photovoltaic technology, mainly for concentration technology, where dual-axis is required on account of the high accurate alignment to the Sun. Even when there exists a strong relation between tracking error and energy effici...
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| Autores principales: | , , , , , |
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| Formato: | article |
| Lenguaje: | EN |
| Publicado: |
MDPI AG
2021
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| Materias: | |
| Acceso en línea: | https://doaj.org/article/2f6881b3d7574cceb8b60c5203a14070 |
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| Sumario: | Solar Tracking Systems are useful to increase the generation efficiency of photovoltaic technology, mainly for concentration technology, where dual-axis is required on account of the high accurate alignment to the Sun. Even when there exists a strong relation between tracking error and energy efficiency, multiple technological and research developments have sought to solve these problems independently. The present research proposes a novel concurrent design methodology for optimizing the overall performance of two-axis trackers, allowing to keep a balance between the tracking error and the energy consumption from the design stage, from an optimization approach. The concurrent approach was implemented to design a Solar Tracker as a solar monitoring system, was compared with four commercial systems, obtaining a similar pointing accuracy with a mixed tracking error of <inline-formula><math display="inline"><semantics><mrow><msup><mn>0.0942</mn><mo>°</mo></msup></mrow></semantics></math></inline-formula>. The system has the best energy balance, consuming only <inline-formula><math display="inline"><semantics><mrow><mn>0.9641</mn><mo>%</mo></mrow></semantics></math></inline-formula> of the energy generated for the tracking action, below commercial models. Finally, a CO<inline-formula><math display="inline"><semantics><msub><mrow></mrow><mn>2</mn></msub></semantics></math></inline-formula> impact analysis was carried out, where the proposed tracker obtained the lowest value, with <inline-formula><math display="inline"><semantics><mrow><mn>25.7018</mn></mrow></semantics></math></inline-formula> g. The results support the developed concurrent strategy for the optimization of the overall performance of dual-axis systems, allowing us to find a harmonic balance between the energy consumption and the required tracking accuracy. |
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