Wind Turbine Technology: Fundamental Concepts in Wind Turbine Engineering, Second Edition
2 Introduction to Modern Wind Turbines
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The preceding chapter traces the development of wind power technology from ancient windmills through the historic Smith-Putnam project which ended in 1945. During the next 40-odd years, wind energy enthusiasts proposed turbine designs covering every conceivable concept, shape, and size. Many of these resulted in complete designs, and a large number were built and tested. In the last decade of the 20th century typical configurations of modern horizontal-axis and vertical-axis wind turbines (HAWTs and VAWTs) began to emerge, and these will be described in this chapter. The evolutionary process that led to modern wind turbine configurations is described in detail...