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A Solar Automatic Tracking System that Generates Power for Lighting Greenhouses

Authors :: Qi-Xun Zhang
Di Yang
Hai-Ye Yu
Qiu-Yuan Zhang
Cheng-Hui Shao
Zhong-Yuan Zhang
Source :: Energies, Vol 8, Iss 7, Pp 7367-7380 (2015), Energies, Volume 8, Issue 7, Pages 7367-7380
Publication Year :: 2015
Publisher :: MDPI AG, 2015.
Abstract: In this study we design and test a novel solar tracking generation system. Moreover, we show that this system could be successfully used as an advanced solar power source to generate power in greenhouses. The system was developed after taking into consideration the geography, climate, and other environmental factors of northeast China. The experimental design of this study included the following steps: (i) the novel solar tracking generation system was measured, and its performance was analyzed<br />(ii) the system configuration and operation principles were evaluated<br />(iii) the performance of this power generation system and the solar irradiance were measured according to local time and conditions<br />(iv) the main factors affecting system performance were analyzed<br />and (v) the amount of power generated by the solar tracking system was compared with the power generated by fixed solar panels. The experimental results indicated that compared to the power generated by fixed solar panels, the solar tracking system generated about 20% to 25% more power. In addition, the performance of this novel power generating system was found to be closely associated with solar irradiance. Therefore, the solar tracking system provides a new approach to power generation in greenhouses.