臺灣博碩士論文加值系統

本論文針對五種波浪發電架構進行研究及分析，分別為一、單部線性永磁發電機直接連接獨立負載；二、單部線性永磁發電機透過電力電子設備連接電網；三、兩部線性永磁發電機透過三相電壓源轉換器併聯經過單部三相電壓源換流器連接電網；四、兩部線性永磁發電機分別透過三相背對背轉換器後併聯連接至電網；五、兩部線性永磁發電機波浪場與採用威爾斯渦輪機之波浪場併聯連接至電網。本論文所使用之各發電系統之交直軸等效數學模型是假設系統於三相平衡之條件下所推導，並利用所推導之數學模型，分別完成五種波浪發電架構在不同波浪狀況下之穩態結果，以及系統在受到不同干擾下之動態模擬結果。

This thesis analyzed five wave energy conversion systems (WECSs): (1) single linear permanent-magnet generator (LPMG) connected to independent load, (2) single LPMG connected to grid with back-to-back converters, (3) two LPMGs connected in parallel with voltage-source converters then connected to grid with one voltage-source inverter, (4) two LPMGs connected to grid in parallel with their own back-to-back converters, (5) two LPMG wave farms integrated with a Wells turbine-based wave farm then connected to grid. The q-d axis equivalent mathematical model is developed under three-phase balanced loading conditions to establish the complete model of the studied system. Steady-state characteristics of these studied schemes under various wave conditions are examined while dynamic simulations of these studied WECSs subject to different disturbances are also carried out.

摘要 I
Abstract II
致謝 III
目錄 IV
表目錄 VIII
圖目錄 IX
符號說明 XII
第一章 緒論 1
1-1 研究背景與動機 1
1-2 波浪能量轉換系統介紹 3
1-3 相關文獻回顧 10
1-4 本論文之貢獻 13
1-5 研究內容概述 14
第二章 系統數學模型 16
2-1 前言 16
2-2 系統架構 17
2-3 阿基米德波浪搖擺(AWS)之數學模型 21
2-4 線性永磁式發電機(LPMG)之數學模型 23
2-5 威爾斯渦輪機之數學模型 32
第三章 系統之穩態分析 37
3-1 前言 37
3-2 單部LPMG直接連接獨立負載之穩態分析 38
3-3 單部LPMG透過電力電子設備連接電網之穩態分析 47
3-4 兩部LPMG透過VSC併聯經過單部VSI連接電網之穩態分析 58
3-5 兩部LPMG分別透過VSC-VSI後併聯連接至電網之穩態分析 67
3-6 兩部LPMG與採用威爾斯渦輪機之波浪場併聯連接至電網之穩態分析 76
第四章 系統之動態分析 94
4-1 前言 94
4-2 單部LPMG直接連接獨立負載之動態分析 95
4-2-1 波浪力變動之動態分析 99
4-2-2 波浪週期變動之動態分析 102
4-2-3 負載變動之動態分析 106
4-3 單部LPMG透過電力電子設備連接電網之動態與暫態分析 110
4-3-1 波浪力變動之動態分析 116
4-3-2 波浪週期變動之動態分析 122
4-3-3 隨機波浪狀況下之動態分析 128
4-3-4 電網端發生三相短路故障之暫態分析 134
4-4 兩部LPMG透過VSC併聯經過單部VSI連接電網之動態與暫態分析 140
4-4-1 波浪相位變動之動態分析 140
4-4-2 隨機波浪狀況下之動態分析 147
4-4-3 電網端發生三相短路故障之暫態分析 149
4-5 兩部LPMG分別透過VSC-VSI後併聯連接至電網之動態與暫態分析 152
4-5-1 波浪相位變動之動態分析 152
4-5-2 隨機波浪狀況下之動態分析 160
4-5-3 電網端發生三相短路故障之暫態分析 162
4-6 兩部LPMG與採用威爾斯渦輪機之波浪場併聯連接至電網之動態與暫態分析 166
4-6-1 波浪相位變動之動態分析 167
4-6-2 隨機波浪狀況下之動態分析 174
4-6-3 電網端發生三相短路故障之暫態分析 176
第五章 結論與未來研究方向 181
5-1 結論 181
5-2 未來研究方向 184
參考文獻 186
作者簡介 189
附錄 191

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