Abstract
This paper presents methods and results in modeling wind turbine dynamic radar signatures in the near field. The theoretical analysis begins with the simpler case of modeling wind turbine blades as rectangular plates. The theoretical radar signature for the wind turbine in the near field is formulated and its main peculiarities are investigated. Subsequently, the complex shape of the blades is considered and the corresponding radar signatures are modeled. Theoretical modeling is confirmed for both cases via experimental testing in laboratory conditions. It is shown that the experimental results are in good accordance with the theoretically predicted signatures.
Highlights
The interaction between radar and wind turbines (WTs) has drawn the increased attention of researchers for a number of years
This paper presents methods and results in modelling wind turbine dynamic radar signatures in the near-field
The theoretical analysis begins with the simpler case of modelling wind turbine blades as rectangular plates
Summary
The interaction between radar and wind turbines (WTs) has drawn the increased attention of researchers for a number of years. One of the major motivations for considering such a system is that WTs rapidly increase in size and complexity [24] This means that radar clutter becomes more problematic, and implies that these large structures become increasingly more difficult and expensive to maintain [25]. To tackle the latter problem, WTs currently employ a number of different sensors, installed directly on their blades, and operating at different physical principles (e.g. accelerometers, strain gauges, displacement sensors etc) to persistently monitor WT’s unattended and detect different structural faults [26]-[28].
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