本論文係以海洋溫差發電系統直接並聯市電，以及太陽集熱型海洋溫差發電系統經由傳輸線與市電並聯和直接與負載做連接之兩種系統架構為主，分別分析兩系統之穩態特性與動態響應，並比較含與不含激磁控制器之太陽集熱型海洋溫差發電系統穩定度作為研究目標。在三相平衡系統下採用交直軸等效電路模型，分別建立集熱器、熱交換器、調速機、渦輪機與同步發電機等數學模型，並以極點安置法理論設計比例-積分-微分型激磁控制器。在穩態分析方面，分別探討兩架構在不同工作條件下之系統穩態工作點及特徵值分析。動態分析方面，分別完成兩架構在受到不同干擾的情況下之系統穩定度特性分析。

This thesis presents stability analysis, steady-state results, and dynamic performance of ocean thermal energy conversion (OTEC) system and solar-concentrated OTEC system under two configurations, i.e., OTEC system directly connecting to a utility grid through a transmission line and a solar-concentrated OTEC system connecting to a utility grid through a transmission line and connecting to a local load. The q-d axis equivalent-circuit model is employed to establish the models for solar-concentrated device, heat exchanger, governor, turbine, and synchronous generator to derive the complete dynamic equations of the studied system under three-phase balanced loading conditions. Steady-state characteristics of the studied system under different synchronous generator operating conditions are examined. Dynamic simulations of the studied system subject to different disturbances are also carried out. Also, an excitation controller is employed to improve the dynamic response of the studied system under the configuration of solar-concentrated OTEC system connecting to a utility grid through a transmission line and connecting to a local load.

中文摘要 I
英文摘要 II
誌謝 III
目錄 IV
表目錄 VIII
圖目錄 XI
符號說明 XIV
第一章 緒論 1
1-1 研究背景 1
1-1-1 海洋溫差發電簡介 1
1-1-2 海洋溫差發電運作原理 3
1-1-3 國內外海洋溫差發展情形 6
1-2 研究動機 7
1-3 參考文獻回顧 10
1-4 本論文貢獻 16
1-5 研究內容概述 16
第二章 系統數學模型 18
2-1 前言 18
2-2 海洋溫差發電系統數學模型 19
2-2-1 溫度轉換數學模型 19
2-2-2 能量轉換數學模型 21
2-2-3 調速機與渦輪機數學模型 22
2-2-4 同步發電機數學模型 24
2-3 負載端、匯流排端與市電端數學模型 27
2-4 暖海水流率控制器數學模型 28
2-5 太陽集熱型海洋溫差發電系統並聯市電之數學模型 29
第三章 海洋溫差發電系統之穩態分析 32
3-1 前言 32
3-2 改變同步發電機輸出實功之穩態分析 33
3-3 改變同步發電機輸出電壓之穩態分析 38
3-4 改變同步發電機輸出功因之穩態分析 43
3-5 改變同步發電機輸出線路參數之穩態分析 48
第四章 海洋溫差發電系統之動態分析 53
4-1 前言 53
4-2 暖海水流率步階改變時之動態分析 53
4-3 同步發電機發生轉矩干擾時之動態分析 56
4-4 市電端發生三相短路故障時之動態分析 58
第五章 太陽集熱型海洋溫差發電系統之穩態分析 60
5-1 前言 60
5-2 太陽集熱型海洋溫差發電系統之參數分析 61
5-2-1 改變太陽輻射之穩態特性分析 62
5-2-2 改變集熱管面積之穩態特性分析 66
5-2-3 改變熱交換器表面積之穩態特性分析 69
5-2-4 改變集熱循環流率之穩態特性分析 73
5-2-5 改變暖海水流率之穩態特性分析 77
5-2-6 改變暖海水溫度之穩態特性分析 80
5-2-7 改變冷海水溫度之穩態特性分析 83
5-2-8 改變環境溫度之穩態特性分析 86
5-2-9 太陽集熱裝置之功率增量分析 89
5-3 利用極點安置法設計控制器 90
5-3-1 激磁控制系統之模型 90
5-3-2 以極點安置法設計PID控制器 92
5-3-3 靈敏度分析 96
5-4 改變同步發電機輸出實功之穩態分析 100
5-5 改變同步發電機輸出電壓之穩態分析 109
5-6 改變同步發電機輸出功因之穩態分析 118
5-7改變市電端線路參數之穩態分析 127
5-8 改變負載量之穩態分析 135
第六章 太陽集熱型海洋溫差發電系統之動態分析 143
6-1 前言 143
6-2 太陽輻射隨時間改變之動態分析 143
6-3 暖海水流率步階改變之動態分析 149
6-4 同步發電機轉矩干擾之動態分析 153
6-5 市電端發生三相短路故障之動態分析 157
6-6 負載改變之動態分析 161
第七章 結論與未來研究方向 165
7-1 結論 165
7-2 未來研究方向 167
參考文獻 168
作者簡介 172

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