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1 | (12) |
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1 | (1) |
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1.2 Concepts to Utilize Wind Energy |
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2 | (6) |
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1.2.1 Drag-Type Wind Turbines |
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3 | (1) |
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1.2.2 Lift-Type Wind Turbines |
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4 | (2) |
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1.2.3 Power Performance of Different Concepts |
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6 | (2) |
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8 | (1) |
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1.4 Electrical Energy from Wind |
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9 | (1) |
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9 | (4) |
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13 | (30) |
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2.1 Geometry with Upwind Rotor |
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13 | (2) |
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2.2 Components and Systems |
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15 | (1) |
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16 | (4) |
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20 | (4) |
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2.5 Power Generation System |
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24 | (3) |
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2.6 Essential Control Concepts |
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27 | (4) |
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2.6.1 Variable Speed Operation by Torque Control |
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27 | (2) |
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2.6.2 Power Regulation by Blade Pitch |
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29 | (2) |
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2.7 Alternative Power Regulation Concepts |
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31 | (1) |
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31 | (2) |
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33 | (1) |
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2.9 Why All Utility-Scale Wind Turbines Look Similar |
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33 | (2) |
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2.10 Some Recent Wind-Industry Trends |
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35 | (2) |
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2.10.1 Trend to Lower Specific Power |
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35 | (1) |
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35 | (1) |
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2.10.3 Trend to High Onshore Towers |
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36 | (1) |
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36 | (1) |
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2.10.5 Onshore and Offshore |
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37 | (1) |
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2.11 Wind Turbines Used for Illustration in This Book |
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37 | (6) |
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3 Development Process and Requirements |
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43 | (14) |
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3.1 Modern Development Process |
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43 | (2) |
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45 | (1) |
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3.3 Standards, Guidelines, Certification |
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46 | (3) |
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3.4 Load Cases, Ultimate and Fatigue Loads |
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49 | (3) |
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3.5 Vertical Integration of Manufacturing in Wind Industry |
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52 | (2) |
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3.6 Transport and Logistics |
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54 | (2) |
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3.7 Requirements for Offshore Wind Energy |
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56 | (1) |
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57 | (24) |
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4.1 Gearbox or No Gearbox? |
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57 | (2) |
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59 | (1) |
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60 | (1) |
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4.4 Separated or Integrated Drivetrain |
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61 | (2) |
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4.5 Wind Turbines with Gearbox and High-Speed Generator |
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63 | (10) |
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4.5.1 Low-Speed Side---Machine Frame and Rotor Bearing Concepts |
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63 | (6) |
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4.5.2 Gearbox and Its Interfaces |
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69 | (1) |
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4.5.3 High-Speed Shaft and Connection of Gearbox and Generator |
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70 | (1) |
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4.5.4 High Speed Generator |
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70 | (1) |
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4.5.5 Drivetrain Dynamics for Wind Turbine with Gearbox |
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71 | (2) |
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4.6 Concepts with Medium Speed Generator |
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73 | (1) |
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4.7 Direct Drive Concepts |
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74 | (7) |
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75 | (1) |
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4.7.2 The Air Gap Challenge |
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76 | (1) |
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4.7.3 Position of the Generator and Integration Concept |
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76 | (1) |
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4.7.4 Inner and Outer Rotor |
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77 | (1) |
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4.7.5 Eleon as an Example |
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78 | (3) |
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81 | (32) |
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5.1 Materials and Manufacturing Process for Main Components |
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81 | (4) |
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5.1.1 Cast Iron and Casting Process |
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82 | (1) |
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5.1.2 Construction Steel and Welding |
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83 | (1) |
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84 | (1) |
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5.1.4 Glas Fiber Reinforced Plastic |
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84 | (1) |
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85 | (5) |
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86 | (2) |
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5.2.2 2 MW Hub Design and Structural Analysis |
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88 | (2) |
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5.2.3 Hub Stability Analysis |
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90 | (1) |
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90 | (9) |
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5.3.1 Sizing and Analysis |
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91 | (6) |
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5.3.2 Optimizing the Structure |
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97 | (2) |
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99 | (2) |
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101 | (4) |
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5.5.1 Sizing and Analysis |
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101 | (4) |
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105 | (1) |
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106 | (2) |
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5.8 Nacelle Cover and Spinner |
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108 | (5) |
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109 | (2) |
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111 | (2) |
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113 | (10) |
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113 | (6) |
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117 | (2) |
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119 | (2) |
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121 | (2) |
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123 | (12) |
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123 | (4) |
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7.1.1 Alternative Gearbox Concepts |
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127 | (1) |
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127 | (2) |
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129 | (4) |
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7.4 Slip Ring and Rotary Union |
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133 | (2) |
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135 | (12) |
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135 | (5) |
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140 | (2) |
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142 | (2) |
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144 | (3) |
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147 | (10) |
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147 | (5) |
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147 | (1) |
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148 | (4) |
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152 | (5) |
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152 | (1) |
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153 | (4) |
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10 Auxiliary Systems and Secondary Steel |
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157 | (16) |
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157 | (2) |
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158 | (1) |
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158 | (1) |
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10.2 Meteorological System |
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159 | (2) |
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161 | (4) |
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10.3.1 Basics Heat Exchange |
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161 | (1) |
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162 | (1) |
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163 | (2) |
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165 | (2) |
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167 | (6) |
References |
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173 | |