臺灣博碩士論文加值系統

本論文主要係針對台電實際配電饋線系統進行電容器配置規劃研究，以降低饋線損失及改善線路電壓降，找出電容器裝置容量、位置為目標，並考慮線路互耦效應之三相負載潮流分析為基礎，再納入饋線負載模型之影響，配合台電既有的配電圖資管理系統資料，以停限電運轉圖資系統(OMS)之配電系統線路，進行饋線電容器裝設位置、容量大小、裝置成本，及電能損失成本分析，探討饋線電容器規劃配置問題，以總成本最低為目標，決定饋線電容器之位置及容量大小。在本論文中，依據實際之日負載持續曲線，考慮饋線上固定型電容器位置的配置及容量大小，與時控型電容器投切、入系統時段，藉由假設虛功率負載為平均分佈得到電容器位置配置與電容器容量大小，以達到線路損失最小之改善，更能切合實際配電系統之需求。
為驗證本論文配電饋線電容器配置規劃，能夠有效的降低配電饋線損失，本論文以台電鳳山區營業處轄區內仁武一次變電所饋線B237做為模擬測試的實際案例。由模擬的結果中顯示，藉由時控型電容器組隨各時段之虛功負載變化做有效的投切，皆能有效的在各時段做適量的虛功補償控制，避免過補償或補償不足，並能夠有效降低配電饋線損失，以提升供電品質。

This paper focuses on Taiwan Power Company’s actual distribution feeder system to formulate a capacitor placement plan, in order to reduce losses in distribution feeders, as well as to improve their voltage drop. The objective is to determine the allocations of capacitors and obtain their required capacitances. In addition to performing a three-phase load flow analysis of the effects of mutual coupling occurring between feeders, this paper also takes into account the effects of a feeder load model. The distribution lines of the Outage Mapping Management System (OMS), along with the data stored in Taiwan Power Company’s Distribution Mapping Management System (DMMS), are used in the analysis of the locations where capacitors are installed on the feeders, the capacitances of capacitors, installation costs, and the costs of energy losses. In the discussion on planning the placement of capacitors on feeders, a minimum total cost is targeted when determining the allocations of capacitors on feeders and their capacitances. In this paper, the placement of fixed capacitors on feeders and their capacitances, as well as the time interval during which time-controlled capacitors switch on to, and enter, the system are considered based on the actual daily load distribution per hour curve. The locations of capacitors are found and their required capacitances are obtained by hypothesizing that there is a uniformly distributed load of reactive power, in order to minimize losses in the distribution feeders and to better meet the requirements of the actual distribution system.
To verify that the planning of capacitors allocation on the distribution feeders can effectively reduce losses in the distribution feeders, this paper uses feeder B237 of the primary substation in Renwu managed by Taiwan Power Company Fengshan Branch as a practical case for a simulation test. The results suggest that reactive power compensation can be effectively controlled at various time intervals by the effective switching of time-controlled capacitors in accordance with changes in reactive power load at various time intervals. With this procedure, over-compensation and under-compensation are avoided, while losses in the distribution feeders are effectively reduced, thereby improving the power supply quality.

摘要 i
Abstract ii
誌謝 iv
目錄 v
圖目錄 vii
表目錄 x
第一章 緒論 1
1.1 研究背景及目的 1
1.2 研究方法與步驟 3
1.3 論文章節概要 5
第二章 配電系統架構及配電資訊系統 6
2.1 電力系統架構概述 6
2.2 配電系統型態 7
2.3 圖資坐標系統 17
2.4 用戶服務資訊系統(CIS)簡介 25
第三章 配電饋線之網路模型與負載特性 29
3.1 前言 29
3.2 停限電運轉圖資系統(OMS) 30
3.3 配電圖資管理系統(DMMS) 33
3.4 配電網路拓樸分析 35
3.5 配電圖資設備減量 44
3.6 饋線負載資料及負載特性 48
3.6.1 饋線負載特性 52
第四章 配電饋線電容器配置規劃 53
4.1 前言 53
4.2 配電用電容器簡介 54
4.3 虛功補償原理 60
4.4 無效電力控制 63
4.5 饋線電容器規劃 67
第五章 配電系統模擬分析 72
5.1 前言 72
5.2 台電饋線電容器規劃模擬 73
5.3 饋線電容器規劃案例分析 75
5.3.1 案例一:裝置固定型電容器1組 75
5.3.2 案例二:裝置固定型電容器2組 76
5.3.3 案例三:裝置固定型與時控型電容器組合 77
5.3.4 案例四:電壓分析 80
5.3.5 案例五:損失分析 83
5.3.6 案例六:成本分析 91
第六章 結論與未來研究方向 92
6.1 結論 92
6.2 未來研究方向 93
參考文獻 94

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