https://scholars.lib.ntu.edu.tw/handle/123456789/411425
Title: | System analysis of 1-axis three-position tracking solar PV | Authors: | Huang B.-J. Sun F.-S. |
Keywords: | Solar photovoltaic; Solar power; Tracking PV | Issue Date: | 2007 | Journal Volume: | 28 | Journal Issue: | 3 | Start page/Pages: | 307-313 | Source: | Journal of the Chinese Society of Mechanical Engineers, Series C | Abstract: | A new PV design, called '1-axis three-position tracking PV module', was proposed in the present study. Every PV module is mounted on an individual sun tracking frame. The 1-axis tracking mechanism adjusts the PV position only at three fixed angles (three-position tracking): morning, noon, and afternoon. This '1-axis three-position sun tracking PV module' can be designed in a simple structure with low cost. A design analysis of the 1-axis three-position sun tracking PV module was carried out in the present study. The analytical results show that the optimal stopping angle β is about 50° and the optimal switching angle is half of the stopping angle, i.e. θH=β/2, and both are independent of the latitude. The analysis also indicates that the effect of installation misalignment away from the true south direction is negligible (<2%) if the alignment error is less than 15°. At mid-low latitude region φ<40°, the reduction of power generation due to misalignment is only about 5% even if the alignment error is 35°. The analytical results show that the present 1-axis three-position sun tracking PV module is quite promising in cost reduction. It is estimated that the cost reduction for the present 1-axis three-position PV tracking module is about 15%. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-39749107886&partnerID=40&md5=61836ee5dccd8f7780c88bbe68959065 https://scholars.lib.ntu.edu.tw/handle/123456789/411425 |
ISSN: | 2579731 |
Appears in Collections: | 機械工程學系 |
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