Wind turbine blades are the critical components of wind turbines, converting wind’s kinetic energy into mechanical energy, which is then transformed into electricity. The efficiency of this process largely depends on the blades’ structural design. Among the various structural elements, the blade trailing edge is crucial for blade performance as it is subjected to edge driven loads, which are due to blade own weight. In addition, Trailing edge is more critical for aero performance and noise reduction. This paper describes the potential standard design methods implemented in existing blade designs and associated challenges. In addition, this paper describes the design enhancements of trailing edge to cope up with the latest blade design requirements.

The trailing edge joint is challenging to reinforce due to limited access for adding materials, especially as blade length increases and edge-driven loads become more significant. Design improvements such as stiffeners, enhanced material choices, and revised architectures may offer more effective solutions.

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