臺灣博碩士論文加值系統

In recent years, many developed countries have been competing to explore new energy resources, especially in offshore wind turbines. Compared with, onshore wind turbines, offshore winds tend to flow at higher speeds. Consequently allowing offshore wind turbines to harness greater energy yields.
This thesis investigates available offshore winds in western Taiwan. The WindFarm and Wind Atlas Application Program (WAsP) software is used in this study as a simulation tool to evaluate potential energy in western Taiwan. This thesis also analyzes the correlation between wake loss energy and topographic effect, roughness effect, position turbine to determine the best layout for western Taiwan area.
In order to get the best layout for offshore wind turbine, mD x nD rule is also introduced as the way to obtain the smallest wake loss energy that caused by wind in each one area. WindFarm also has the ability to optimize wind turbine layout. To utilize this feature, a comparison between manual and automatic layouts has also been done.
This thesis provides a summary of total maximum offshore wind turbine in western Taiwan according to the depth of sea.

ABSTRACT I
ACKNOWLEDGEMENTS II
TABLE OF CONTENTS III
LIST OF TABLES VII
LIST OF FIGURES XV
CHAPTER I INTRODUCTION 1
1.1 Research Background 1
1.2 Objectives 3
1.3 Thesis Structure 4
CHAPTER II LITERATURE REVIEW 5
2.1 Wind 5
2.1.1 Wind Rose 6
2.1.2 Wind profile and shear 6
2.1.3 Weibul distribution 7
2.1.4 Betz limits 9
2.2 Roughness Effect 10
2.3 Topography 12
2.4 Wind Energy 13
2.5 The Combination of Wake Velocity Deficits 13
2.6 Anatomy Turbine 15
2.7 Wind Turbine Power Efficiencies 17
2.8 Mathematical Model 18
2.9 Wind Power Generation 21
2.10 Onshore and Offshore 22
2.11 Wind Power Development 24
CHAPTER III RESEARCH METHOD 29
3.1 Taiwan Condition 29
3.2 WindFarm 41
3.3 Wasp 42
3.4 Comparison WindFarm And WAsP 43
CHAPTER IV BASIS EXPLORATION 45
4.1 Wind and Simulation Site 45
4.2 Grid Size Testing 46
4.2.1 Topographic Effect 47
4.2.2 Roughness Effect 48
4.3 Default Model Testing 49
4.3.1 Wake Velocity 50
4.3.2 Wake Combination 50
4.3.3 Wake Added Turbulence 50
4.3.4 Wind Turbine Thrust Model 51
4.4 Check Wake Loss and Energy Yield 52
4.4.1 Relative Orientation 52
4.4.2 Distance Effect 55
4.4.3 Downstream Effect 58
4.4.4 Lateral Effect Toward Main wind 76
4.5 mDxnD Rule 96
4.6 Optimization 97
4.6.1 Block Turbine Experiment 97
4.6.2 Limitation Optimization 98
CHAPTER V WESTERN TAIWAN 101
5.1 Hsin Chu Area新竹 101
5.1.1 Simulation Site 101
5.1.2 Wind Profile 102
5.1.3 Wind Velocity Estimation 103
5.1.4 Energy Yield 104
5.1.5 The Potential Area 105
5.2 Miao Li Area苗栗 110
5.2.1 Simulation Site 110
5.2.2 Wind Profile 112
5.2.3 Wind Velocity Estimation 113
5.2.4 Energy Yield 113
5.2.5 The Potential Area 114
5.3 Tai Chung Area 台中 119
5.3.1 Simulation Site 119
5.3.2 Wind Profile 121
5.3.3 Wind Velocity Estimation 122
5.3.4 Energy Yield 122
5.3.5 The Potential Area 123
5.4 Chang Hua Area 彰化 127
5.4.1 Simulation Site 127
5.4.2 Wind Profile 129
5.4.3 Wind Velocity Estimation 130
5.4.4 Energy Yield 130
5.4.5 The Potential Area 131
5.5 Yun Lin Area 雲林 136
5.5.1 Simulation Site 136
5.5.2 Wind Velocity Estimation 138
5.5.3 Energy Yield 138
5.5.4 The Potential Area 139
5.6 Chia Yi嘉義 144
5.6.1 Simulation Site 144
5.6.2 Wind Profile 145
5.6.3 Wind Velocity Estimation 147
5.6.4 Energy Yield 148
5.6.5 The Potential Area 149
5.7 Tai Nan Area台南 154
5.7.1 Simulation Site 154
5.7.2 Wind Profile 155
5.7.3 Wind Velocity Estimation 157
5.7.4 Energy Yield 158
5.7.5 The Potential Area 159
5.8 Result of All Area 164
CHAPTER VI CONCLUSION AND SUGGESTION 166
REFERENCES 167
 

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