Wind turbine generator defect analysis diagram

What is a wind turbine generator failure analysis & fault diagnosis?

In this article, a comprehensive and up-to-date review of wind turbine generators failure analysis and fault diagnosis are presented. First, the electrical and mechanical failures of various WTG components, including stator, rotor, air gap, and bearings, are analyzed. Then, the fault characteristics and root causes of WTG are studied.

Do wind turbines have fault analysis data?

Not only do wind turbines have a large number of installations and complex operational data, but the number of effective analyses for fault samples is small, which results in a lack of real and valid fault analysis data.

Why is early detection and diagnosis of wind turbine failures important?

Early detection and diagnosis of wind turbine failures is essential for the application of possible maintenance and control strategies to avoid catastrophic events .

How to detect a fault in a wind turbine?

The fault diagnosis of a wind turbine was performed by comparing the wind turbine behavior predicted by the trained model with the reference space and analyzing the distribution and correlation of the wind turbine SCADA data. However, the fault model was combined with the acoustic signal, which reduced the success rate of fault detection.

Which approach is best for wind turbine generator fault diagnosis?

Finally, the application of four categories of model-based, signal-based, knowledge-based and hybrid approaches to wind turbine generator fault diagnosis is summarized. The comprehensive review shows that the hybrid approach is now the leading and most accurate tool for real-time fault diagnosis for wind turbine generators.

Why is time-frequency analysis important for wind turbine fault diagnosis?

Since the wind turbine is a complex system with variable operating conditions, the actual fault signal often has nonlinear and non-stationary characteristics, so time-frequency analysis is more effective for fault diagnosis of generators and other components.