PEMD_Paper.pdf (2.45 MB)
Download fileEffect of power converter on condition monitoring and fault detection for wind turbine
conference contribution
posted on 2016-10-25, 13:26 authored by Raed Ibrahim, Simon WatsonThis paper investigates the impact of power electronics converter when attempting wind turbine condition monitoring system and fault diagnosis by the analysis of fault signatures in the electrical output of the turbine. A wind turbine model has been implemented in the MATLAB/Simulink environment. Fault signature analysis for electrical signals is presented. A signal processing algorithm based on a fast fourier transform is then used to potentially identify fault signatures. The results
obtained with this model are validated with experimental data measured from a physical test rig. Through comparison between
simulation data and experimental data it is concluded that the power converter has significantly reduced fault signatures from
the electrical signal though not entirely extinguished them. It may still be possible to extract some fault information after the
converter though this is much more challenging than upstream. Further work is needed to see whether it may be possible to
modify the power converter particularly the filter design and the switching elements to avoid removing fault signatures from
electrical signals without adding significant cost or compromising performance.
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- Mechanical, Electrical and Manufacturing Engineering