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博碩士論文 etd-0802113-141913 詳細資訊
Title page for etd-0802113-141913
論文名稱
Title
以動態狀態估計為基礎之配電系統模式建立
Distribution System Modeling Based on Dynamic State Estimation
系所名稱
Department
畢業學年期
Year, semester
語文別
Language
學位類別
Degree
頁數
Number of pages
128
研究生
Author
指導教授
Advisor
召集委員
Convenor
口試委員
Advisory Committee
口試日期
Date of Exam
2013-08-16
繳交日期
Date of Submission
2013-09-02
關鍵字
Keywords
配電系統狀態估計、智慧配電網、先進讀表基礎建設、動態狀態估計、配電自動化
Advanced Metering Infrastructure, smart distribution grid, Distribution State Estimation, Distribution Automation, dynamic state estimation
統計
Statistics
本論文已被瀏覽 5754 次,被下載 722
The thesis/dissertation has been browsed 5754 times, has been downloaded 722 times.
中文摘要
配電自動化、需量反應及先進讀表基礎建設被認為是未來演化至智慧配電網很重要的三個元素。為了達到智慧配電網,必須擁有一套即時狀態估計,以執行自動化的系統控制,並了解整個系統運轉情形。此外先進讀表基礎建設系統的資本投資相當可觀,若能強化附加價值的開發,將有助重大投資的合理性,因此本論文主要尋求先進讀表基礎建設系統的應用效益,希望能在配電系統運轉規劃上提高其可靠度價值及運轉效益。利用未來智慧電表所提供之用戶用電資訊以及整合系統監控和資料擷取系統、圖資運轉系統和用戶資訊系統,來執行每小時之配電系統狀態估計。好的配電系統負載估計則有助於配電管理系統執行有效的系統運轉策略及負載管理,以協助改善電壓品質和復電調度,降低系統損失和網路壅塞情形。基於配電狀態估計再更進一步發展出動態狀態估計,藉此預測未來每15分鐘的系統狀態,該資訊對於電力系統運轉的經濟效益和安全能力提供了很大的幫助,進而協助配電系統運轉人員做出重要決策,例如:負載調整、電壓控制和饋線重組…等。
Abstract
Distribution automation, demand response and advanced metering infrastructure (AMI) are three important elements of modern smart distribution grid. To achieve it, the real-time state estimate is required, and enable distribution system operators to get more system operation information. Due to the high investment in these systems, this study aims at creating an added value of AMI in order to achieve rational investment and improve system operations. By using the customer power usage data from smart meter and operational data from supervisory control and data acquisition (SCADA), this thesis proposes two distribution state estimation (DSE) techniques that can be used to set up a quasi-real-time model for distribution management in order to improve voltage quality and power restoration dispatch, and reduce system losses and network congestion. The proposed dynamic state estimation can be used to forecast system states in every 15 minutes, and based on the data obtained, distribution system operators can make informed decisions on load adjustment, voltage control and feeder reconfiguration.
目次 Table of Contents
論文審定書 I
誌謝 II
中文摘要 III
Abstract IV
目錄 V
圖次 VII
表次 X
第一章 緒論 1
1.1 研究背景與動機 1
1.2 先進讀表基礎建設之加值功能 3
1.3 配電系統模型 13
1.4 配電系統狀態估計之文獻回顧 19
1.4.1 以節點電壓為狀態變數 20
1.4.2 以饋線分支電流為狀態變數 29
1.4.3 配電狀態估計之討論 42
1.5 動態狀態估計之功能與目的 44
1.6 本論文之成果 45
1.7 論文架構 46
第二章 配合配電系統模式建立的資料來源 47
2.1 先進讀表基礎建設系統架構 47
2.2 電表資料管理系統 49
2.3 配電自動化系統 51
第三章 以動態狀態估計為基礎之配電運轉模式建立 54
3.1 基於加權最小平方法之配電系統狀態估計 54
3.2 動態狀態估計 58
3.2.1 狀態轉移矩陣模型之建立 58
3.2.2 卡爾曼濾波器 60
3.2.3 擴展卡爾曼濾波器 68
3.2.4 無跡卡爾曼濾波器 70
3.2.5 擴展和無跡卡爾曼濾波器之比較 78
3.3 結合動態狀態估計之配電系統即時運轉模型建立 84
第四章 模擬結果與分析 88
4.1 測試系統架構 88
4.2 資料的建立與描述 93
4.3 動態狀態估計結果比較 96
第五章 結論及未來展望 108
5.1 結論 108
5.2 未來研究方向 109
參考文獻 110
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