研究生: |
郭家宏 Guo, Jia-Hong |
---|---|
論文名稱: |
基於超像素分割之衛星雲圖進行預測與估計日射量之系統 A system for predicting and estimating solar irradiance based on satellite cloud image with superpixel segmentation |
指導教授: |
呂藝光
Leu, Yih-Guang |
口試委員: |
鄭錦聰
Jeng, Jin-Tsong 吳政郎 Wu, Jenq-Lang 陶金旺 Tao, Chin-Wang 莊鎮嘉 Chuang, Chen-Chia 呂藝光 Leu, Yih-Guang |
口試日期: | 2022/07/18 |
學位類別: |
碩士 Master |
系所名稱: |
電機工程學系 Department of Electrical Engineering |
論文出版年: | 2022 |
畢業學年度: | 110 |
語文別: | 中文 |
論文頁數: | 101 |
中文關鍵詞: | 日射量 、衛星雲圖 、超像素分割 、光流法 、長短期記憶 |
英文關鍵詞: | solar irradiance, satellite cloud image, super pixel segmentation, optical flow, LSTM |
研究方法: | 實驗設計法 、 比較研究 、 觀察研究 、 文件分析法 |
DOI URL: | http://doi.org/10.6345/NTNU202201314 |
論文種類: | 學術論文 |
相關次數: | 點閱:88 下載:113 |
分享至: |
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由於日射量容易受天氣因素影響而容易產生變化,進而造成太陽能發電量不穩定,因此,難以將其整合入區域電網當中。本文建立一個以超像素分割衛星雲圖為基礎之日射量估計與預測系統。分析衛星雲圖並萃取其雲層特徵,採用光流法,分析雲層運動,生成預測的衛星雲圖。再將這些影像特徵與一些天氣預報特徵作為長短期記憶(LSTM)之輸入,進行日射量的估計與預測。本文使用幾個效能指標來評估估計與預測的效果,包括平均絕對誤差(MAE)、均方根誤差(RMSE)以及判定係數(R^2);並設計數個實驗方法進行比較,實驗結果顯示,本文所提出方法有達到預期的成果。
Since solar radiation is susceptible to changes due to weather factors, it is difficult to integrate it into the regional power grid because of the instability of solar power generation. In this study, a solar irradiance estimation system based on satellite cloud image superpixel segmentation was established. The satellite cloud image is analyzed, the cloud features are extracted, the satellite cloud image is used as the input, the cloud layer movement is analyzed by the optical flow method, and the predicted satellite cloud image is generated. These features are used as input to long short-term memory (LSTM) to estimate and predict solar irradiance. Several performance metrics are used to evaluate the estimation and prediction, including MAE, RMSE, and R2. Several methods are compared, and the experimental results show that the proposed method performs better.
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