Title :
Lifetime estimation for the power semiconductors considering mission profiles in wind power converter
Author :
Ke Ma ; Liserre, Marco ; Blaabjerg, Frede
Author_Institution :
Dept. of Energy Technol., Aalborg Univ., Aalborg, Denmark
Abstract :
As a key component in the wind turbine system, power electronic converter and its power semiconductors suffer from adverse power loadings related to environment, and are proven to have certain failure rates. Therefore, correct lifetime estimation of wind power converter is crucial for the reliability improvement and also for cost reduction of wind power technology. Unfortunately, the existing lifetime estimation methods for the power electronic converter are not yet suitable in the wind power application, because the comprehensive mission profiles are not well specified and included. Consequently, a relative more advanced approach is proposed in this paper, which is based on the loading and strength analysis of devices and takes into account different time constants of the thermal behaviors in power converter. With the established methods for loading profile generation and lifetime estimation, more detailed information for the reliability performance of wind power converter can be obtained.
Keywords :
cost reduction; estimation theory; power convertors; power semiconductor devices; reliability; wind power plants; wind turbines; adverse power loading analysis; correct lifetime estimation method; cost reduction; mission profile; power semiconductor estimation; reliability performance; strength analysis; thermal behavior; wind power electronic converter; wind turbine system; Estimation; Load modeling; Loading; Thermal loading; Wind power generation; Wind speed; Wind turbines;
Conference_Titel :
Energy Conversion Congress and Exposition (ECCE), 2013 IEEE
Conference_Location :
Denver, CO
DOI :
10.1109/ECCE.2013.6647087