Based on the three primary configurations and failure statistics analysis of wind turbines in China, this paper summarizes the failures of wind turbine components, such as frequency converters, generators, gearboxes, pitch systems, yaw systems, blades, braking systems and sub-synchronous machines. ...
Summary of Wind Turbine Accident data to 31 December 2008 These accident statistics are copyright Caithness Windfarm Information Forum 2008 and are updated quarterly. The data may be used or referred to by groups or individuals, provided that the source (Caithness Windfarm Information Forum) is ...
8 Less well covered are vibration sensor requirements for wind turbine applications. This article provides system insights for wind turbine components, failure statistics, common fault types, and fault data gathering methods. Vibration sensor requirements, such as bandwidth, measurement...
the down times in case of failed components can be much higher than in the case of an onshore wind turbine. Having increased knowledge regarding the state of health of the wind farm as a whole and its components and detecting failures at an early stage, through online continuous monitoring ...
(WECS). Failure of WECS results in wind turbine (WT) shutdown or expenses maintenance that extensively cut down the yearly revenue. The WECS failures result in frequent planned O&M scheduled to guarantee the reliability of wind power (WP) generation. So, condition monitoring (CM) and fault ...
Carlos S et al (2014) Dynamic prediction of failures: a comparison of methodologies for a wind turbine. In: mathematical modeling in social sciences and engineering, pp. 51–58 Cross P, Ma X, Wang Y (2013) Feature selection for artificial neural network model-based condition monitoring of wi...
where\(V_a\)is the air volume in the chamber in an undisturbed state andVis the air volume variation in the chamber. A Wells turbine with a diameter ofDand a rotational velocity ofNis described by a linear relationship between the pressure and flow coefficients. ...
[8] gives an excellent summary of Danish and Wind Turbine failures based upon WindStats, in particular the Mean Time Between Failure(MTBF) as shown in Table I. The model used is: λ(t) = βΘ t Θβ−1 (2) t: time β: a parameter that allows us to tune the function according...
Missing wind speed data are mainly caused by harsh weather, wind turbine failures, and data transmission errors, which have adverse effects on the performance of wind power forecasting, power curve modeling, and energy assessment. Inspired by context encoders (CE), this paper proposes an improved...
2.1. Wind turbine reliability and performance statistics 2.1.1. Overview of onshore data One of the first reliability databases foronshore turbineswas compiled by Lynette [25], who analysed the trend in availability and costs for the maintenance of various types of small-scale units installed in...