臺灣博碩士論文加值系統

本文旨在研製小型風力發電系統之功率轉換器。本系統可將三相永磁式同步發電機經由交流-直流-交流功率轉換器將風力發電所產生之變動電壓及頻率轉換為固定電壓及頻率之單相電源。採用三相各相獨立圖騰型交流-直流功率轉換器作為發電機側之功率轉換器用以維持直流鏈電壓穩定及執行最大功率追蹤控制。市電側採用單相直流-交流功率轉換器，將發電機之功率轉換為電能，提供與市電併網。
本系統使用套裝軟體Matlab-Simulink/Simpower作整體的模擬，包括交流-直流功率轉換器、單相直流-交流功率轉換器及其控制策略，以作為整體系統實作之依據。本系統採用德州儀器公司之數位信號處理器(TMS320F2808)為控制核心，系統控制策略皆由軟體程式完成，減少硬體電路成本。本文已完成三相各相獨立圖騰型交流-直流功率轉換器與單相直流-交流功率轉換器市電併網的實體製作，容量780W，發電機側電流總諧波失真率為14.11 %，市電側電流總諧波失真率為10.97 %，其整體效率為86.6%。

This thesis presents the analysis and design of power converters for small wind generators. The system consists of three-phase permanent-magnet synchronous generator, rectifier and inverter, which can transfer the generator power from varying-frequency and varying-voltage to single-phase for grid connection. The ac-dc power converter uses three-phase independent connections of totem-pole converter to keep dc-link voltage constant and exercise maximum power-point tracking. The single-phase inverter can provide the generator power to grid.
The proposed system uses Matlab-Simulink/Simpower to simulate rectifier and inverter. The simulated results obtained serve as the basis for system implementation and performance evaluation. The high-performance and low-cost digital signal processor TMS320F2808 is used to control the power converter. An experimental system is built. The power converter supplies 780W with the current total harmonic distortion of generator of about 14.11%, while the current total harmonic distortion of single-phase output under grid connection is about 10.97%. The corresponding overall efficiency of 86.6 % is obtained using three-phase independent connections of totem-pole power converter.

中文摘要 I
英文摘要 II
誌　　謝 III
目　　錄 IV
符號索引 VI
圖表索引 XI
第一章 緒論 1
1.1 研究動機及目的 1
1.2 文獻探討 1
1.3 系統架構及本文特色 3
1.4 本文大綱 5
第二章 三相永磁式同步發電機及風力發電最大功率追蹤控制 6
2.1 前言 6
2.2 三相永磁式同步發電機及其數學模式 6
2.2.1三相永磁式同步發電機之數學模式 6
2.2.2三相永磁式同步發電機端電壓之角位置估測器 7
2.3 風力發電最大功率追蹤控制控制 10
2.4 結語 12
第三章 三相各相獨立型交流-直流功率轉換器 13
3.1 前言 13
3.2 三相三開關昇壓型交流-直流功率轉換器之分析及控制 19
3.2.1三相三開關昇壓型交流-直流功率轉換器之模擬與實測結果 24
3.3 三相各相獨立圖騰型交流-直流功率轉換器之分析及控制 29
3.3.1三相各相獨立圖騰型交流-直流功率轉換器之模擬與實測結果 36
3.4 結語 41
第四章 單相直流-交流功率轉換器與系統整合 42
4.1 前言 42
4.2單相直流-交流功率轉換器分析及控制 42
4.3電流控制模式與市電併網控制 44
4.3.1單相直流-交流功率轉換器之模擬與實測結果 45
4.4 系統整合 46
4.5 結語 46
第五章 實體製作與實測 50
5.1 前言 50
5.2 硬體電路製作 50
5.2.1數位信號控制器介面規劃 50
5.2.2電壓回授電路 53
5.2.3電流回授電路 55
5.3 控制軟體規劃 56
5.3.1系統主程式之規劃 56
5.3.2三相各相獨立圖騰型交流-直流功率轉換器程式規劃 58
5.3.3單相直流-交流功率轉換器程式規劃 60
5.4 系統模擬 61
5.5 系統實測 62
5.6 結語 74
第六章 結論與建議 75
6.1 結論 75
6.2 建議 76
參考文獻 77
附錄A 三相永磁式同步發電機之規格及參數 83
附錄B 30槽32極內轉型發電機之規格及參數 84
附錄C 三相各相獨立型交流-直流功率轉換器模擬程式 85
附錄D 整體系統模擬程式及參數 94
附錄E 系統規格與電路參數 98
作者簡介 100

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