FAILURE ANALYSIS OF WIND TURBINES IN ZAFARANA WIND FARM, SUEZ GULF, EGYPT

Document Type : Original Article

Authors

1 PhD Student, Libyan Armed Forces.

2 Egyptian Armed Forces.

3 Professor, South Valley University, Egypt.

Abstract

ABSTRACT
A detailed analysis of the recoded failure data of the wind turbines in Zafarana wind
farm namely Site-3 has been introduced. The failure cost consequences of one of
the main components of the wind turbine have been introduced for cost analysis and
maintenance planning.
The effect of variation of the capacity factor and the down time on failure cost
consequences is introduced. The down time has a significant effect on the failure
cost consequences of wind turbine components. The failure recoded data have been
illustrated for one year for the same site for different wind turbine components while
the capacity factor has only effect on gearbox and blade failure cost.
For failure rate and reliability analysis, the Weibull distribution has been introduced,
the modified maximum likelihood method has been used to evaluate the Weibull
distribution parameters. The failure rate and reliability have been studied for different
wind turbine components. The initial failure rate after one month (720 h) was 0.0026
while the failure rate was 0.0084 at the end of the year (8760h) for the generator
critical components.

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