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石門水庫操作規則之推導及評估

The Derivation and Evaluation of Operation Rule for Shihmen Reservoir

摘要


不同的水庫操作方法對水庫的整體使用效率有很大的影響,不良的操作方法常會降低水庫供水效率,無法充分利用水資源而導致下游之缺水現象,良好的操作方法則能降低此種情形發生之機率,如何尋得一個較好的操作方式,提高水庫的使用效率並減少缺水發生之次數與總量是現今水資源愈趨不足的臺灣一個重要之課題。臺灣目前的水庫操作大多採用固定規線,此種操作方式雖然簡單便利,但稍嫌保守且缺乏彈性,未能隨著新進資料之更新而稍作修正。本研究的目的是希望能以過去的操作管理資料為依據,求得一種較具彈性的操作規則來做爲水庫放水的依據,使其能隨著資料的更新而修正放水量,並利用系統模擬的技巧與統計上的序率優勢(Stochastic Dominance)來建立篩選及評估操作法則之模式,作爲日後營運改善之參考。

關鍵字

水庫操作 序率優勢 水資源

並列摘要


The yield of a reservoir is greatly affected by the operating rule used. An improper operating rule may cause waste of water resource and lead to a water supply shortage at downstream area. To derive an efficient operating rule becomes an important issue. Most of the reservoirs in Taiwan are operated according to a set of ruling curves. This method of ruling curve is simple but rigid. It is not flexible to response to the change of input and output of the water system such as incoming stream flow or the downstream water demand. The objective of this study is derive new operating rules for better operation of the reservoir.

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