NDLI: Reliability evaluation model of wind power converter system considering variable wind profiles

Content Provider	IEEE Xplore Digital Library
Author	Hui Li Haiting Ji Yang Li Shengquan Liu Dong Yang Xing Qin Li Ran
Copyright Year	2014
Description	Author affiliation: Sch. of Electr. Eng., Chongqing Univ., Chongqing, China (Hui Li; Haiting Ji; Yang Li; Shengquan Liu; Dong Yang; Xing Qin; Li Ran)
Abstract	This paper presents a reliability assessment model for the wind power converter system (WPCS). In this study, the most influential factors of average wind speed and wind turbulence intensity are considered. First, WPCS operation state is partitioned into different phases in terms of different thermal stress levels which are determined by its operation conditions of average wind speed and wind turbulence intensity. Then, based on FIDES reliability guide, thermal factor and thermal cycling factor for each WPCS operation phases are calculated to indicate the contribution of average wind speed and wind turbulence to WPCS reliability. Finally, the randomly changed thermal profile is regulated by rain-flow cycling count algorithm and thus the junction temperature cycling information is extracted to calculate the thermal factor and thermal cycling factor. The reliability assessment on a real full-rated WPCS of a 2.5MW wind turbine with a permanentmagnet synchronous generator (PMSG) is carried out and the influences of cut-in, rated, cut-out wind speed and heat sink design parameters to the WPCS reliability is analyzed.
Starting Page	3051
Ending Page	3058
File Size	1191872
Page Count	8
File Format	PDF
ISBN	9781479957767
DOI	10.1109/ECCE.2014.6953815
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-09-14
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Insulated gate bipolar transistors Wind speed Generators Wind turbines Reliability Thermal stresses
Content Type	Text
Resource Type	Article

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