Research on Wind Turbine Blade Clearance Detection Method Based on Arc Array for Emission Source Localization
Wind turbine blades tend to bend towards the tower under strong winds thus leading to great risks for wind power generation.In this regard,a wind turbine blade headroom detection method based on curved arrays to localize the emitting source is proposed.Due to the obstruction of the tower,only the blade-fa-cing part of the circular array can receive the signal from the emitter source located at the top of the blade,so the array flow shape and direction map formula of the curved array are derived,based on which the method of emittersource localization based on the curved array is proposed,and then the equation of the functional rela-tionship between the blade headroom and the emitter source's elevation angle is deduced.Finally,the feasibility and effectiveness of the above method are verified by Matlab-based simulation.
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