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研究生:石宗翰
研究生(外文):Tzung-Han Shi
論文名稱:風力發電系統之進階電力品質控制方案設計與實現
論文名稱(外文):Design and Implementation of Advanced Power Quality Control Schemes for Wind Power Generation Systems
指導教授:馬肇聰
指導教授(外文):Tsao-Tsung Ma
口試委員:陳源林陳榮堅
口試委員(外文):Yuan-Lin ChenRong-Jian Chen
口試日期:2014-01-19
學位類別:碩士
校院名稱:國立聯合大學
系所名稱:電機工程學系碩士班
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:2014
畢業學年度:102
語文別:中文
論文頁數:91
中文關鍵詞:永磁式同步發電機電力品質電流諧波低電壓渡過
外文關鍵詞:PMSGpower qualitycurrent harmonicsLVRT
相關次數:
  • 被引用被引用:0
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  • 下載下載:15
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近年來,風力發電為台灣發展再生能源的重要項目之一。然而,風力發電機所產生之電力會隨著風速改變而變化,無法直接使用。因此,實務上風力發電機的即時電能控制就格外重要。本論文特別針對風力發電相關電力品質控制問題進行探討並提出改善方案。傳統中、小型風力發電系統之電能轉換架構大多由三相全橋式整流器、DC-DC昇壓轉換器與逆變器所組成。使用該架構有若干缺點;例如,在發電機輸出端將產生電流諧波問題進而造成發電機之脈動轉矩,降低風力機壽命與轉換效率等。為此,本文使用一高功因、無橋轉換器架構及相關控制策略來進行改善。此外,風力發電系統併聯市電時,若電力系統發生電壓驟升或驟降,依照併網規範發電機之逆變器除了進行實功饋送外必須使用虛功率補償之方式來輔助電力系統快速恢復其正常電壓。這部份,本文使用d-q軸電流解耦控制架構來實現低電壓渡過模式中逆變器之同時實、虛功操作。本論文首先針對所提各控制方案進行理論分析與控制器設計,再使用Matlab/Simulink與PSIM軟體進行案例模擬與確認,最後以TI之數位信號處理器(TMS320F28335)作為系統之控制核心進行小容量硬體實作驗證。由模擬及實測結果可證明本論文所提控制方案深具可行性及有效性。
關鍵詞:永磁式同步發電機、電力品質、電流諧波、低電壓渡過
In recent years, wind power generation is one of the important items in Taiwan’s renewable energy development. However, the electrical power generated by the wind turbine generator (WTG) will vary with changes in wind speed and can not be used directly. Thus, real-time power control of WTG is particularly important in practice. In this thesis, the power quality control issues related to WTG are especially investigated to identify potential solutions. Conventionally, the power interface of a medium to small scale WTG includes a three-phase full-bridge rectifier, a DC-DC boost converter and an inverter system. This configuration has several drawbacks; e.g., the generator will have problems of current harmonics and torque ripples and the life of the wind turbine and the conversion efficiency will be reduced. In this thesis, a high-power-factor, bridgeless converter and its related control strategies are proposed to improve this problem. In addition, in grid-tie WTG operations, if the power system voltage sags or swells, the WTG inverter has to perform the function of reactive power compensation according to the grid code to help power system concerned. In this aspect, the decoupled d-q axis current control method is utilized to realize the low voltage ride through (LVRT) capability of WTG. In this thesis, theoretical analysis and design of various control schemes for the proposed WTG are firstly carried out, then simulations on Matlab and PSIM software are performed and validated, and finally a small-scale hardware system with the TI's digital signal processor (TMS320F28335) as the control core are implemented for further verification. The results obtained from both simulations and hardware tests verify the feasibility and effectiveness of the proposed control schemes.
Keywords: permanent magnet synchronous generator, power quality, harmonic current, low voltage ride through

摘要 I
ABSTRACT II
誌謝 III
目錄 IV
圖目錄 VI
表目錄 XI
符號索引 XII
第1章 緒論 1
1.1 研究動機與目的 1
1.2 文獻探討 2
1.3 論文架構 4
第2章 風力發電系統 5
2.1 簡介 5
2.2 風力發電原理 6
2.3 永磁式風力發電系統架構與控制 8
2.3.1 永磁式同步發電機之系統架構 11
2.3.2 永磁式同步發電機之數學模型 12
2.3.3 永磁式同步發電機之同步旋轉座標系統 17
2.4 永磁式同步發電機電流諧波改善方案 21
2.4.1 電流諧波之探討 22
2.4.2 電流諧波控制方案 23
2.4.3 電流諧波控制電路設計 30
2.5 永磁式風力發電系統之功率控制與最大功率追蹤 34
2.6 系統之案例模擬與實作 36
第3章 風力發電併網系統之低壓渡過控制器設計 62
3.1 簡介 62
3.2 風力發電系統之電力品質與併網規範 62
3.3 風力發電併網系統之低壓渡過控制 65
3.3.1 併網型電力介面之架構三相逆變器模型推導 65
3.3.2 併網型電力介面之架構三相逆變器控制器設計 69
3.3.3 系統控制方案 75
3.4 風力發電併網系統之低壓渡過模擬與實作 76
第4章 結論與未來研究方向 87
4.1 結論 87
4.2 未來研究方向 87
參考文獻 88

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