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研究生: 詹玉霞
Chan, Yu-Hsia
論文名稱: 模糊解耦合控制應用於多變數伺服器散熱系統
Application of Decoupling Fuzzy Control on Thermal Management for Variable Servers
指導教授: 陳榮順
Chen Rong-Shun
口試委員: 葉廷仁
Yeh, Ting-Jen
顏炳郎
Yen, Ping-Lang
學位類別: 碩士
Master
系所名稱: 工學院 - 動力機械工程學系
Department of Power Mechanical Engineering
論文出版年: 2012
畢業學年度: 100
語文別: 中文
論文頁數: 66
中文關鍵詞: 伺服器散熱系統模糊控制非線性耦合系統
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  • 元件的散熱問題一直都是電子產品重要且須迫切解決的議題,對於電子產品而言,高溫會使晶片失去其準確性、可靠度,嚴重甚至導致損毀,造成系統不穩定,故伺服器相關產業都致力於謀求解決其內部元件高發熱量的散熱技術。針對其散熱問題,絕大部分的解決方式為透過熱流軟體分析系統流場,將最佳的模擬結果搭配實際系統散熱片與風扇的開發,同時考量各裝置數量、性能、擺放位置等設計,最後加入控制器於風扇做輔助補償。
    目前伺服器產品的散熱控制,較先進的法則為採用PID控制器,透過調節PID參數及風扇對感測器的權重值來完成系統散熱管理。由於上述方式耗時且不易解決系統耦合現象,故本研究應用模糊邏輯理論對伺服器系統進行散熱控制,並解決系統非線性與耦合問題,其系統架構以NI LabVIEW軟體搭配Single-Board RIO做為整體自動化程序系統監測、信號處理與控制法則之計算核心,本研究成功控制CPU與NB晶片溫度於臨界值誤差範圍內,並解決系統耦合現象,由此顯示應用模糊控制於伺服器散熱系統具有可行性與前景。


    摘要 I 致謝 II 目錄 III 圖目錄 VI 表目錄 IX 第一章 緒論 1 1.1 前言 1 1.2 研究背景與動機 2 1.3 文獻回顧 7 1.4 本文架構 12 第二章 伺服器系統熱流分析 13 2.1 熱傳機制 13 2.1.1 熱對流 13 2.1.2 熱傳導 14 2.1.3 熱輻射 16 2.1.4 伺服器系統散熱路徑 17 2.2 風扇移熱原理與特性曲線 17 2.3 伺服器系統模態分析 19 第三章 控制器之設計 20 3.1 模糊介紹 20 3.2 模糊控制 22 3.2.1 模糊化 23 3.2.2 模糊規則庫 23 3.2.3 模糊推論器 25 3.2.4 解模糊化 26 3.3 伺服器系統之模糊控制 28 第四章 系統架構與設備 29 4.1 實驗硬體設備 30 4.1.1 伺服器 30 4.1.2 PWM風扇 31 4.1.3 加熱器與資料擷取器 32 4.1.4 NI sbRIO-9602 33 4.2 LabVIEW軟體監控介面 34 4.3 伺服器系統規格 35 第五章 實驗設計與結果討論 37 5.1 伺服器系統測試 37 5.2 實驗設計I 41 5.3 實驗結果與討論I 51 5.4 實驗設計II 54 5.5 實驗結果與討論II 55 5.6 動態實驗結果與討論 57 第六章 結論與未來工作 61 6.1 結論 61 6.2 未來工作 63 參考文獻 64

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