학술논문
Efficiency improvement and reliability evaluation of small-scale PMSG-based wind energy conversion system using back-to-back T-type converter.
Document Type
Article
Source
Subject
*WIND energy conversion systems
*PERMANENT magnet generators
*POWER electronics
*INDUCTION generators
*RELIABILITY in engineering
*ELECTRON configuration
*THERMAL analysis
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Language
ISSN
0948-7921
Abstract
Utilization of small-scale wind energy conversion systems (WECS) has been grown in recent years. Permanent magnet synchronous generator due to lack of slip rings is a suitable alternative for induction generators to be used in these systems. However, these generators use full power converters which means higher power losses. In this paper, an ultra-efficient three-level converter, called T-type converter, is used in a back-to-back configuration as power electronic interface for PMSG-based small-scale WECS. Then, simulations are carried out to evaluate the efficiency of the system and compare it to conventional two- and three-level back-to-back configurations. Meanwhile, thermal analysis is carried out to investigate the thermal loading of different switching components of the converter. Data given by this analysis can be further used to evaluate system reliability. Therefore, system reliability is calculated and compared to conventional two- and three-level converter systems. [ABSTRACT FROM AUTHOR]