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標題: | 單軸追日太陽光發電系統最佳發電智能控制研究 Optimal Power Output and Smart Control of One-Axis Sun Tracking PV System |
作者: | Chi-Yao Chung 鍾琦嶢 |
指導教授: | 李坤彥(Kung-Yen Lee) |
關鍵字: | 單軸追日控制技術,太陽板姿態智能化學習與控制,智能型太陽時鐘, One-axis tracking control,Smart learning and control of PV position,Smart solar clock, |
出版年 : | 2016 |
學位: | 碩士 |
摘要: | 本研究旨在發展單軸追日太陽光電系統最佳發電控制技術(one-axis maximum-power generation),探討降低搜索頻率與搜索範圍對發電量之影響。並透過系統長期搜索與學習,發展最佳太陽板姿態智能化學習與控制技術(smart learning and control of PV position)。另一方面,為改善時鐘IC與太陽時間之差異,加入智能型太陽時鐘校正技術(smart solar clock)以提升系統可靠度。
本研究於兩種不同測試環境(住家和大樓)下進行兩種最佳發電控制方法:(1)降低搜索頻率、(2)窄化搜索範圍。從測試結果可得知,採「降低搜索頻率」會使發電量略為提升;採「窄化搜索範圍」則在住家環境下約可提升21%的發電量,因本方法可大幅減少隨機環境變因干擾所產生之誤判情形。 透過智能化學習與控制,可成功推測未來最佳太陽板姿態。此控制方法每周僅需搜索三天,減少單軸裝置的磨耗率,提高系統可靠度與使用年限。 此外,智能型太陽時鐘校正技術在長期測試與失效模擬試驗下,皆能有效地將時鐘IC校正為太陽時鐘,使追日裝置運作正常。 This study proposes a development of one-axis maximum power generation technique (1A-MPG) and discusses the impact of the frequency and range on the power generation. From the long-term tracking and learning, we developed a smart learning and control technique for the PV position system. We further added the smart solar clock calibration technology to improve the stability of PV system. Two developed control methods decreasing the frequency of tracking and narrowing range of tracking were used in two separated environments. The experimental results indicate that the power generation was slightly increased by using the method of decreasing the frequency of tracking. Also, through using the method of narrowing range of tracking in the home environment, the total power generation increased about 21%. This result indicated that using the method of narrowing range can reduce the effects of the environmental disturbance. The PV position can be inferred through optimizing the machine learning and control. The one-axis tracking mechanism only needs three days for the sun tracking per week. This technique decreases much needless moves of the one-axis tracking system and improves the PV system reliability. From the long-term field and failure test, timer IC calibration can functionally work through the smart solar clock calibration technology. In conclusion, the research approved that the one-axis sun tracking PV system with the solar clock calibration technology is more reliable. |
URI: | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/78181 |
DOI: | 10.6342/NTU201601451 |
全文授權: | 有償授權 |
顯示於系所單位: | 工程科學及海洋工程學系 |
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