臺灣博碩士論文加值系統

當電力系統出現負載過高或過低的情況，或是系統有事故發生時，系統的負載端電壓會有過低及過高的現象產生，嚴重影響供電品質本文擬以靜態同步調相器（Static Synchronous Condenser；簡稱STATCON）來進行電壓調整，以得到平穩之電壓。
本論文所提出之靜態同步調相器，是由一個三相正弦脈波寬度調變（Sine-Pulse Width Modulation；SPWM）的電壓型變流器連接一個直流電容器所組成。在系統架構方面，則採用數位式的架構，並以個人電腦為基礎，配合研華科技公司PCL-1800資料擷取卡來完成靜態同步調相器的控制核心。由所得模擬與實驗結果發現，由於線路阻抗所造成的電壓變動情況，可經由本論文所設計之靜態同步調相器，而達到調整電壓的目的。

Excessine voltage variations have been observed on the customer side due to faults on the system or load fluctuations. To regulate and improve load voltage profiles, a static synchronous condenser（STATCON）is presented in this thesis.
The proposed STATCON uses a three phase voltage-source Sine-Pulse Width Modulation（SPWM）inverter with a common dc capacitor. The control kernel of the STATCON is implemented by a PC-based digital system with Adventec PCL-1800 data acquisition boards. From results of simulations and experiments, it is found that load voltage can be effectively regulated by the propose STATCON.

摘 要I
ABSTRACTII
目 錄III
圖 目 錄V
表 目 錄IX
第一章 緒論1
1-1 研究背景與動機1
1-2 現有相關文獻概況3
1-3 研究方法與目的8
1-4 論文內容介紹10
第二章 靜態同步調相器分析12
2-1 本章概述12
2-2 電壓源形式變流器之基本工作原理13
2-3 靜態同步調相器電路分析16
2-3-1 變流器輸出電壓18
2-3-2 直流電容器充放電分析26
2-4 靜態同步調相器之控制架構29
2-4-1 靜態同步調相器符號定義30
2-4-2 弦波信號峰值檢測法32
2-4-3 電容器電壓與電容值決定35
2-4-4 變流器切換時之直流電壓控制37
2-5 模擬特性分析39
第三章 靜態同步調相器之實體製作43
3-1 本章概述43
3-2 靜態同步調相器硬體製作44
3-2-1 資料擷取卡之簡介與信號連接………………………………..44
3-2-2 實作電路之系統架構….……………………………………..51
3-2-3 驅動電路之製作….……………………………………..54
3-2-4 同步控制電路之製作….…………………………………..58
3-2-5 其他相關硬體之製作….……………………………………..61
3-3 軟體程式規劃63
3-3-1 軟體簡介….…………………………..64
3-3-2 軟體程式之規劃設計.………………………………..64
3-3-3 類比信號輸入控制流程….………………………………..67
3-3-4 切換信號控制流程….………………………………..68
第四章 靜態同步調相器之實驗結果69
4-1 前言69
4-2 實驗結果與討論70
第五章 結論83
5-1 論文總結83
5-2 未來發展方向84
附錄85
參考文獻91

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