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研究生:劉嘉峻
研究生(外文):Chia-ChunLiu
論文名稱:微型線圈感應電動勢特性之探討
論文名稱(外文):A study on the characteristics of inductive EMF of microcoils
指導教授:周榮華周榮華引用關係
指導教授(外文):Jung-Hua Chou
學位類別:碩士
校院名稱:國立成功大學
系所名稱:工程科學系專班
學門:工程學門
學類:綜合工程學類
論文種類:學術論文
論文出版年:2010
畢業學年度:98
語文別:英文
論文頁數:141
中文關鍵詞:微型發電機微型線圈多層的微功率技術
外文關鍵詞:microgeneratormicrocoilmultilayermicropower technology
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對於微型風力發電機的設計概念、分析方法以及感應電動勢,本論文研究依據小型化發電機之架構,採用原有系統的架構進行體積小型化,並結合微型線圈作為感應導體。微型風力發電機利用葉輪推動轉子旋轉,藉由示波器測量感應電壓與感應電流,並於不同感應頻率下,推估其轉子轉動角速度。其次,使用電磁模擬軟體分析,進行3D模擬模型建構與暫態電磁分析,探討電場和磁場高速頻率改變程度,解決逆向電流產生。此模擬結果依據原始設計系統計算,模擬方法表示可以成功地估計在不同邊界條件下,各種間接能量轉換過程。最後,此後續研究探微性線圈發電功率為目的,從理論條件探討最佳化以及操作點之參數設置,重新設計新模擬模型進行電磁暫態分析,提升發電功率並增加應用範圍。以不同模擬模型架構結果顯示,三相電路連接優於其他形式之型態,具有高的感應功率均方根值。
This thesis presents the design concepts, analysis methods and implementation of small-scale micro-coil power micro-generators. The impetus of this research is the rapid growth of wind power and its implications for planning, operation and control of future small-scale power systems. First, the original layout of a micro-generator system is 25x25x9 mm^3 in volume, which includes the external diameter of the impeller for rotating the armature of the micro-generator by wind power. Based on the different angular speeds of the armature, the electromagnetic performance of this generator layout is evaluated and compared with the experimental result. In this thesis an oscilloscope is used to measure the induced voltage and current in different angular frequencies (angular speeds). Thus, the induced power of the micro-coil is probed.
By using electromagnetic simulation software, we study electric field and magnetic field in three-dimensional micro-generator models. By properly selecting the field solver, quantities such as the induced voltage, induced current and even transient solutions can be computed and proved. The simulated result of the original layout system shows that the electromagnetic simulation methods can track a variety of the indirect energy-conversion process successfully and the characteristics of operation points depend on different angular speed conditions. The optimization operation points and improved setting parameters for several new model layouts are also deduced. With electromagnetic numerical analysis, the simulated results show that the RMS value of three-phase circuit connection is better than other forms of models, because of its higher RMS values of the induced voltage and induced current during different induced frequencies.

摘 要 I
Abstract II
致 謝 IV
Contents V
List of Tables VII
List of Figures IX
Chapter 1 Introduction 1
1-1 Background 1
1-2 Motivation 6
1-3 Organization 8
Chapter 2 The theory of micro-generator system and computational methods 9
2-1 The theory of micro-generator system 9
2-1-1 Maxwell’s equations 9
2-1-2 Induced EMF equation 13
2-2 Simulation of micro-generator system 16
2-2-1 Finite element methods and software introductions 18
2-2-2 3D transient excitations study for micro-generator 19
Chapter 3 Design and implementation of the micro-generator system 22
3-1 Micro-generator system and components introduction 22
3-1-1 The layout construction of micro-generator system 22
3-1-2 Magnetization directions and magnetic domain 24
3-1-3 Micro-coil introduction 28
3-2 Induced EMF experiment 31
3-2-1 Experimental set-up and sample preparation 32
3-2-2 Experimental results 33
3-3 Summary and Perspective 38
Chapter 4 Numerical analysis of the original layout system 39
4-1 Theory and computational methods of the original layout system 39
4-1-1 The study for the size of mesh vs. accuracy 41
4-1-2 Simulation model and boundary condition 47
4-1-3 Simulation results 49
4-1-4 Summary 57
4-2 Modified parameters and results of simulation models 59
4-2-1 Result for simulation models 62
4-2-1-1 A1 simulation model 62
4-2-1-2 A2 simulation model 64
4-2-1-3 A3 simulation model 66
4-2-1-4 A4 simulation model 69
4-2-1-5 A5 simulation model 71
4-2-1-6 A6 simulation model 73
4-2-1-7 A7 simulation model 76
4-3 Comparison the Experimental and simulation results 78
Chapter 5 New micro-generator systems design and analysis 80
5-1 The new 3D simulation model 80
5-1-1 Type No.1 analysis results 80
5-1-2 Type No.2 analysis results 89
5-1-3 Type No.3 analysis results 95
5-2 Parameters modification and analysis of new designs 100
5-2-1 Analysis results of B1 model 103
5-2-2 Analysis results of B2 model 106
5-2-3 Analysis results of B3 model 111
5-2-4 Analysis results of B4 model 114
5-2-5 Analysis results of B5 model 118
5-2-6 Analysis results of B6 model 121
5-2-7 Analysis results of B7 model 123
5-2-8 Analysis results of B8 model 125
5-2-9 Analysis results of B9 model 127
5-3 Summary and perspective 131

Chapter 6 Conclusions and suggestions 135

References 136


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