Abstract
台電公司正積極推動配電自動圖資與設備管理開發計劃，選定台北市中正 區為先導系統的建置範圍。本系統其中一項應用軟體為配電負載轉供分析 程式，開發範圍涵蓋饋線、主變或整個變電所事故或工作停電轉供分析。 清大承辦此項轉供分析程式的開發工作，本論文為此項開發工作的部份成 果，針對中正區以及台灣都市常見的兩型架空饋線進行研究。有關此二型 饋線的負載轉供分析，在現有文獻中極為少見。由於此二型饋線型式一為 分岔環路型，指饋線的主幹線由一條分岔成兩條幹線，經連絡開關與支援 饋線形成二幹線環路。另一為多區段環路型，指主幹線有兩條以上的支援 幹線，經連絡開關與支援饋線形成多處幹線環路。由於此二型架空饋線具 有多重饋線環路，可選擇的轉供方案多於一次常開環路饋線，增加轉供分 析的複雜度。此外，架空饋線的開關位置與型式亦有別於一次常開環路地 下饋線，因此無法直接修改一次常開環路地下饋線轉供方案去適用分岔環 路型與多區段環路型架空饋線。此外，本論文設計轉供程式與用戶停電管 理程式及圖資資料庫間之介面資料檔格式，並針對事故停電與工作停電轉 供，提出開關操作程式設計，進行數值測試並驗證可行。本文第二章說明 影響轉供分析的重要因素，包括電流、容量因素、負載估算與開關特性。 提出轉供分析模式與圖資資料庫、用戶停電管理程式之間介面資料檔的格 式設計。第三、四章分別討論分岔環路型與多區段環路型兩類架空饋線， 對事故或工作停電僅位於分歧線，以及事故或工作區涵蓋幹線兩情況，提 出轉供模式。第五章研擬兩類架空線路事故或工作停電狀況下的開關操作 順序。第六章進行數值測試並討論測試結果。第七章總結以上研究成果， 提出未來研究方向。 Taiwan Power (Taipower) Company is now conducting its distribution system automatic mapping and facility management (AM/FM) project, which selects the Chung-Cheng district of Taipei city as the pilot project implementation area. One of the application softwares within this AM/FM system is the distribution system load transfer analysis program. According to Taipower's specification, this computer program should be applicable to the analysis after the forced outage or before the scheduled maintenance of distribution feeder and substation . Tsing Hua University is the contractor to develop the computer program . Our thesis presents part of the Tsing Hua results within this AM/FM project . The thesis focuses on two common types of overhead feeders within the Chung-Cheng and urban areas of Taiwan .Very few researchers have studied the load transfer problem of these two types of feeder . Of these two feeder types, one refers to the feeder whose downstream primary feeder is branched into two primary feeders each tied with a feeder to form a primary loop through a normally open switch . The second feeder type refers to the feeder which has at least two feeder sections each tied with a neighboring feeder to form a primary loop through a normally open switch . Because each of these feeders has more than one primary loop, their load transfer analysis problem is fairly complex in comparison to the primary open loop network which is the most common network in the urban area of Taiwan . Besides, these two types of feeder are all overhead feeders, Therefore, their protection devices differ from those of the primary open loop network which is mainly of the underground feeders . Therefore the computer algorithm designed for the load transfer analysis for the primary open loop network is not applicable to the two types of feeders presented in this thesis.