Comparison of different modelling approaches of drive train temperature for the purposes of wind turbine failure detection

The Science of Making Torque from Wind

Tautz-Weinert, J.^1 ; Watson, S.J.^1

Centre for Renewable Energy Systems Technology, Wolfson School of Mechanical, Electrical and Manufacturing Engineering, Loughborough University, Loughborough

LE11 3TU, United Kingdom^1

关键词: Adaptive neuro-fuzzy inference system;    Cross-correlation analysis;    Gaussian process regression;    Generator temperature;    Modelling techniques;    Monitoring techniques;    Sensitivity studies;    Training and testing;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/753/7/072014/pdf
DOI  :  10.1088/1742-6596/753/7/072014

来源: IOP

【 摘 要 】

Effective condition monitoring techniques for wind turbines are needed to improve maintenance processes and reduce operational costs. Normal behaviour modelling of temperatures with information from other sensors can help to detect wear processes in drive trains. In a case study, modelling of bearing and generator temperatures is investigated with operational data from the SCADA systems of more than 100 turbines. The focus is here on automated training and testing on a farm level to enable an on-line system, which will detect failures without human interpretation. Modelling based on linear combinations, artificial neural networks, adaptive neuro-fuzzy inference systems, support vector machines and Gaussian process regression is compared. The selection of suitable modelling inputs is discussed with cross-correlation analyses and a sensitivity study, which reveals that the investigated modelling techniques react in different ways to an increased number of inputs. The case study highlights advantages of modelling with linear combinations and artificial neural networks in a feedforward configuration.