成功大學博碩士論文系統

簡易檢索 / 詳目顯示

回結果列表

研究生：	江智弘 Chiang, Chih-Hung
論文名稱：	兩並聯整流器間循環電流之抑制研究 Study on Circulating Current Suppression between Two Parallel Rectifiers
指導教授：	張簡樂仁 Chang-Chien, Le-Ren
學位類別：	碩士 Master
系所名稱：	電機資訊學院 - 電機工程學系 Department of Electrical Engineering
論文出版年：	2013
畢業學年度：	101
語文別：	中文
論文頁數：	101
中文關鍵詞：	並聯整流器、零相序阻抗、循環電流
外文關鍵詞：	Parallel converters, Zero-sequence impedance, Circulating current
相關次數：	點閱：73 下載：12
分享至:	分享至facebook 分享至twitter

查詢本校圖書館目錄查詢臺灣博碩士論文知識加值系統勘誤回報

風能轉換系統使用之高功率電能轉換器需長時間操作在低風速的情況下或在高風速時承受極高的電流應力，若根據風機出力狀況選擇並聯多台轉換器便可在低風速下提升電能轉換效率，並在高出力下減少轉換器所需承受的電流應力。然而，並聯轉換器在失當的控制下會產生循環電流。本研究旨在抑制雙台整流器並聯在非同步操作下所產生的循環電流。本研究首先推導出雙台整流器並聯情況下包含發電機、零相序阻抗與三相脈寬調變整流器電路數學模型，並設計出適當的電流控制器。本控制器採用零相序阻抗，固定雙台整流器之開關切換相位差，以及相同電流命令值的方式達成循環電流抑制的效果。最後本研究透過雙台整流器並聯實測驗證其循環電流之抑制效能。

High rated power converters used in wind energy conversion system are generally working at low wind speed for a long time or suffering from high current stress at high wind speed. Adopting multiple power converters in parallel operation in accordance with wind turbine output condition is a good way to improve conversion efficiency at low wind speed, and to reduce current stress at high power output. However, paralleling power converters may induce circulating current if they are not properly controlled. The main purpose of this research is to suppress circulating current when two rectifiers are operating in asynchronous switching operation. This thesis first introduces the mathematical circuit model that includes generator, zero-sequence impedance, and three phase PWM rectifiers. Following that, suitable current controllers are designed to achieve the reduction of circulating current by inserting zero-sequence impedance, fixing the switching phase shift between two rectifiers, and setting the same current command. Finally, experiment tests validate the effectiveness of the circulating current suppression when the PWM rectifiers are in parallel operation.

目錄
摘要	………………………………………………………………………………………………………………………I
英文摘要	……………………………………………………………………………………………………………………II
誌謝	…………………………………………………………………………………………………………………III
目錄	……………………………………………………………………………………………………………………IV
表目錄	………………………………………………………………………………………………………………VIII
圖目錄	……………………………………………………………………………………………………………………IX
第一章	緒論……………………………………………………………………………………………………………1
1	研究背景與動機………………………………………………………………………………………1
2	研究內容與貢獻………………………………………………………………………………………3
3	本文大綱…………………………………………………………………………………………………5
第二章	風電轉換系統簡介…………………………………………………………………………………7
1	前言……………………………………………………………………………………………………………7
2	風渦輪機氣動力模型……………………………………………………………………………8
3	查表型最大功率追蹤演算法………………………………………………………………10
3.1	查表型最大功率追蹤演算法簡介………………………………………………………10
3.2	本文使用之查表型最大功率追蹤演算法…………………………………………11
第三章	雙台整流器並聯之風電轉換架構與控制…………………………………………13
1	前言…………………………………………………………………………………………………………13
2	qd0座標軸轉換……………………………………………………………………………………16
3	三相脈寬調變整流器……………………………………………………………………………20
3.1	開關切換狀態…………………………………………………………………………………………20
3.2	向量空間脈寬調變…………………………………………………………………………………21
4	發電機、零相序阻抗與並聯整流器架構…………………………………………27
4.1	永磁式同步發電機數學模型…………………………………………………………………27
4.2	零相序阻抗數學模型……………………………………………………………………………31
4.3	三相脈寬調變整流器控制……………………………………………………………………33
5	相位角偵測與風機剎車機制…………………………………………………………………41
5.1	無機械式感測器之相位角偵測……………………………………………………………41
5.2	風機剎車機制……………………………………………………………………………………………43
6	結語……………………………………………………………………………………………………………44
第四章	環流現象與抑制方法………………………………………………………………………………45
1	環流的定義及其成因………………………………………………………………………………45
2	環流抑制方法……………………………………………………………………………………………49
2.1	常見之環流抑制方法………………………………………………………………………………49
2.2	本文採用之環流抑制方法………………………………………………………………………53
3	環流抑制模擬結果……………………………………………………………………………………56
4	兩整流器啟動策略……………………………………………………………………………………65
第五章	硬體電路製作與軟體規劃………………………………………………………………………66
1	前言………………………………………………………………………………………………………………66
2	硬體電路………………………………………………………………………………………………………67
2.1	永磁式同步發電機………………………………………………………………………………………67
2.2	三相脈寬調變整流器…………………………………………………………………………………67
2.3	電壓電流信號回授電路………………………………………………………………………………68
2.4	數位信號控制器與周邊電路……………………………………………………………………69
3	控制軟體規劃………………………………………………………………………………………………72
4	結語…………………………………………………………………………………………………………………77
第六章	實體電路測試結果………………………………………………………………………………………78
1	前言…………………………………………………………………………………………………………………78
2	單台三相脈寬調變整流器實測結果…………………………………………………………78
3	雙台並聯三相脈寬調變整流器實測結果………………………………………………84
3.1	環流抑制效果驗證………………………………………………………………………………………84
3.2	發電機低轉速下並聯架構電路效能…………………………………………………………86
3.3	發電機高轉速下並聯架構電路效能…………………………………………………………89
4	查表型最大功率追蹤演算法實測結果……………………………………………………92
4.1	定風速最大功率追蹤實測結果…………………………………………………………………94
4.2	變風速最大功率追蹤實測結果…………………………………………………………………95
5	結語…………………………………………………………………………………………………………………96
第七章	結論與未來研究方向……………………………………………………………………………………97
1	結論…………………………………………………………………………………………………………………97
2	未來研究…………………………………………………………………………………………………………98
參考文獻………………………………………………………………………………………………………………………………99

                                    

[1] WWEA, “World Wind Energy Half-year Report 2012”

[2] WWEA, “World Wind Energy Report 2011”

[3] WWEA, “World Wind Energy Report 2010”

[4] 經濟部能源局再生能源網. (2013). 技術介紹-風能技術. Available : http://www.re.org.tw/ProRE/introduction.aspx?SEQNO=3

[5] 方良吉等撰稿, 2010 年能源產業技術白皮書. 台北市: 經濟部能源局, 2010.

[6] Ching-Tsai Pan and Yi-Hung Liao, "Modeling and Coordinate Control of Circulating Currents in Parallel Three-Phase Boost Rectifier," IEEE Transactions on Industrial Electronic, vol. 54, pp 825-838, 2007

[7] Ching-Tsai Pan and Yi-Hung Liao, "Modeling and Control of Circulating Current in Parallel Three-Phase Boost Rectifier," IEEE Transactions on Industrial Electronics, vol. 55, pp 2776-2785, 2008

[8] Zhihong Ye, Dushan Boroyevich, Jae-Young, Choi and Fred C. LEE, "Control of Circulating Current in Two Parallel Three-Phase Boost Rectifier," IEEE Transactions on Power Electronics, vol. 17, pp 609-615, 2002

[9] 貴人傑. (2007, 六月) 變速風機之控制系統. 機械工程. 20-36

[10] D. S. Oliveira, M. M. Reis, C. Silva, L. Colado Barreto, F. Antunes, and B. L. Soares, "A Three-Phase High-Frequency Semicontrolled Rectifier for PM WECS," IEEE Transactions on Power Electronics, vol. 25, pp 677-685, 2010

[11] K. Zhou and D. Wang, "Relationship between space-vector modulation and three-phase carrier-based PWM: a comprehensive analysis [three-phase inverters]," IEEE Transactions on Industrial Electronics, vol. 49, pp. 186-796, 2002

[12] C.-M. Ong, Dynamic Simulation of Electric Machinery: Using MATLAB/SIMULINK, 1st ed. Taiwan: Pearson Education, 2003

[13] B. K0 Bose, Modern power electronics and AC drives, 1ed. USA: Prentice Hall, 2001

[14] B.-H. Bae, S.-K. Sul, J.-H. Kwon, and J.-S. Byeon, "Implementation of sensorless vector control for super-high-speed PMSM of turbo-compressor," IEEE Transaction on Industry Applications, vol. 39, pp. 811-818, 2003

[15] T. Kawabata and S. Higashino, "Parallel operation of voltage source iverters" IEEE Transaction on Industry Applications,vol. 24, pp. 281-287, 1988

[16] K. Matsui, "A pulsewidth modulated inverter with parallel connected transistor using current-sharing reactors," IEEE Transaction on Power Electronics, vol. 8, pp. 186-191, 1993

[17] Y. Sato and T. Kataoka, "Simplified control strategy to improve AC-input-current waveform of parallel-connected current type PWM rectifiers ," IEE Proceedings on Electric Power Applications, vol. 142, pp. 246-254, 1995

[18] Satoshi Ogasawara, Hirofumi Akagi, and Akira Nabae "A novel control scheme of a parallel current-controlled PWM inverter ," IEEE Transaction on Industry Applications,vol. 28, pp. 1023-1030, 1992

[19] Yoshihiro Komatsuzaki, "Cross current control for parallel operating three phase inverter ," Power Electronics Specialists Conference, PESC ’94 Record., 25th Annual IEEE, vol. 2, pp. 943-950, 1994

[20] Ryuichi Abe, Yoshiaki Nagai, and Kazuhiko Tsuyuki "Development of multiple space vector control for direct connected parallel current source power converters ," Power Conversion Conference, vol 1, pp.283-288, August. 1997

[21] Stephen J. Chapman, Electric Machinery Fundamentals, 4th ed. Singapore: McGraw-Hill, 2005

[22] 曾百由, dsPIC數位訊號控制器原理與應用—MPLAB C30 開發實務. 台北市: 宏友圖書開發股份有限公司

[23] H.-C. Lu and L.-R Chang-Chien, "Use of wind turbine emulator for the WECS development," in Power Electronics Conference (IPEC), 2010 International, 2010, pp.3188-3195.

[24] 周育甫, "應用於海潮流發電機之獨立供電系統," 碩士論文, 電機工程學系, 國立成功大學, 台南市, 2010.

校內：2015-08-26公開
校外：2018-08-26公開

簡易檢索 / 詳目顯示

相關論文