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題 名 | Design of an On-Line Fuzzy Logic Controller for a Dynamic Enhanced Biological Phosphorus Removal Process=動態生物除磷系統線上模糊邏輯控制器之設計 |
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作 者 | 張維欽; 歐陽嶠暉; 蔣偉寧; 許文科; | 書刊名 | 中國環境工程學刊 |
卷 期 | 8:3 1998.09[民87.09] |
頁 次 | 頁197-205 |
分類號 | 445.463 |
關鍵詞 | 模糊邏輯; 線上; 動態控制; 生物除磷系統; Fuzzy logic; Dynamic control; Enhanced biological phosphorus removal; EBPR; On-line; |
語 文 | 英文(English) |
中文摘要 | 由於動態進流情形下之生物除磷系統具有不確定、非線性與複雜等特性,發展一 控制器來作為生物除磷系統之動態自動控制甚為不易。本研究旨在說明如何以模糊邏輯建構 一線上即時控制器來進行動態生物除磷系統之自動控制,並逐步說明模糊邏輯控制器應用於 此動態生物除磷系統時之設計步擬。 本控制器之建構採用 Mamdani 式的推理法與 center -of-area(COA) 式的去模糊方式。在同時考量反應槽微生物反應及終沈池水力負荷情形下, 本研究採用厭氧段 F/M 與進流量為模糊邏輯控制器之輸入變數, 而模糊推理之結果則用以 控制輸出變數:迴流污泥旦。此外,本研究並以具連續自動線上監控設施之模廠宦驗來比較 模糊遼輯控制與比例 (F/M)an 控制之操作性能。 實驗結果顯示模糊控制器較之單純考量生 物反應之比例何 (F/M)an 控制器展現較佳之放流水總懸浮固體濃度控制效果, 並可同時維 持相近之溶解性基質 (COD、磷酸鹽 ) 濃度變動範圍。 |
英文摘要 | An enhanced biological phosphorus removal (EBPR) process under dynamic loading is difficult to control automatically owing to its ill-defined, non-linear, and complex characteristics. This study presents the methodology of constructing an on-line fuzzy logic controller for the real-time dynamic control of an enhanced biological phosphorus removal system. In this study, a Mamdani-type inference scheme and centerof-area (COA) method for defuzzification are employed in the control algorithm. Anaerobic F/M ratio and influent flowrate Q are selected as the input variables for the fuzzy logic controller. The inference results of these two factors in the fuzzy logic controller are transmitted to control the sludge recycle pump properly. For comparison, continuous flow pilot plant experiments with automatic monitoring and real-time control facilities are performed under two control strategies: fuzzy logic control and proportional (F/M)an control. In addition, five effluent parameters (dissolved COD, dissolved phosphate, total SS, total COD, and total phosphorus) are utilized to assess the EBPR system's performance. Experimental results indicate that, compared to proportional (F/M)an control, fuzzy logic control significantly improves the effluent quality. |
本系統中英文摘要資訊取自各篇刊載內容。