METHOD AND DEVICE FOR EVALUATING SERVICE LIFE OF PITCH BEARING OF WIND TURBINE

The present disclosure provides a method and device for evaluating the service life of a pitch bearing of a wind turbine. The method comprises: acquiring the probability density of pitch driving torque in M historical time periods; acquiring a cumulative angle value of a pitch angle in each of the M...

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Bibliographic Details
Main Authors HAN, Wei, ZHANG, Pengfei, ZHAO, Shipei, SU, Huili
Format Patent
LanguageEnglish
French
German
Published 27.03.2024
Subjects
BLASTING
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
HEATING
LIGHTING
MACHINES OR ENGINES FOR LIQUIDS
MECHANICAL ENGINEERING
OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
PHYSICS
PRODUCING MECHANICAL POWER
WEAPONS
WIND MOTORS
WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS
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Summary:The present disclosure provides a method and device for evaluating the service life of a pitch bearing of a wind turbine. The method comprises: acquiring the probability density of pitch driving torque in M historical time periods; acquiring a cumulative angle value of a pitch angle in each of the M historical time periods; according to the pitch driving torque, the probability density thereof in the M historical time periods and the cumulative angle value in the M historical time periods determining the equivalent load of a pitch bearing; and, according to the equivalent load of the pitch bearing, determining the expended service life of the pitch bearing.
Bibliography:Application Number: EP20220899761