Electric Control Substituting Pitch Control for Large Wind Turbines

<table>The relationship between <svg height="15.5375" id="M15" style="vertical-align:-3.27605pt" version="1.1" viewbox="0 0 20.299999 15.5375" width="20.299999" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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<g transform="matrix(.012,-0,0,-.012,12.05,15.475)"><path d="M619 482q0 -69 -40.5 -119t-96 -72.5t-118.5 -26.5h-44l-70 20l-31 -151q-14 -67 0.5 -83t89.5 -22l-5 -28h-287l8 28q65 7 81.5 22t29.5 83l79 398q12 56 0.5 70.5t-78.5 20.5l7 28h255q108 0 164 -43t56 -125zM524 478q0 141 -146 141q-25 0 -47 -8q-16 -6 -20.5 -13.5
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</svg> and tip speed ratio. The dashed line indicates the optimal tip speed ratio. </table>

Journal of Wind Energy

Electric Control Substituting Pitch Control for Large Wind Turbines

Figure 2