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題 名 | 應用模糊控制進行洪流量預報=Application of Fuzzy Control Algorithm on Flood Forecasting |
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作 者 | 陳昶憲; 陳建宏; 楊朝仲; | 書刊名 | 逢甲學報 |
卷 期 | 32 1997.12[民86.12] |
頁 次 | 頁79-89 |
分類號 | 443.42 |
關鍵詞 | 模糊控制理論; 流量預測; Fuzzy control theory; Flood forecasting; |
語 文 | 中文(Chinese) |
中文摘要 | 傳統集合是二值邏輯的世界,僅包含「是」與「非」兩種選擇,若事件本身在決 定大小等級劃分上具有含糊概念時,便無法處理得很好;而模糊理論則採用大量的模糊概念 ,其具有「漸進」的特色,能考量程度上的差異。本文即藉由適當模糊分類之隸屬函數,以 定義出流量變化大小之等級,並利用模糊控制理論進行水文測站的 1-2 階出流量預測。 文 中以烏溪流域烏溪橋流量作為實例演算, 其預測的結果良好,即使至 2 階預測,其效率係 數亦均在 84% 以上,洪峰誤差均在 13% 以內,故顯示模糊控制模式於洪流量預報具可行性 。 |
英文摘要 | The classical mathematics, only two situations exist in Set Theory for logic choice, "Yes" or "No". This logic, however, does not accord well with the need to represent vague concept. Fuzzy theory adopting a lot of vague concept. providing with gradual characteristic, and therefore can consider degree of difference. In this paper, the membership function of fuzzy set is used to define the variance level of outflow discharge by Fuzzy mathematics approach. Furthermore the algorithm of Fuzzy control is applied to forecast flood flow up to two time-step ahead of gauging station. Data of Wu-Shis Bridge, a midstream gauging station of the Wu-Shis basis, is used as a case study. The routing result shows that the coefficient of efficiency is over 84% and the error of peak discharge is under 13% in the second lead time-step. This indicated that applying the Fuzzy control algorithm on flood forecasting field is feasible. |
本系統中英文摘要資訊取自各篇刊載內容。