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Efficiency improvement and reliability evaluation of small-scale PMSG-based wind energy conversion system using back-to-back T-type converter

Efficiency improvement and reliability evaluation of small-scale PMSG-based wind energy... 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. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Electrical Engineering (Archiv fur Elektrotechnik) Springer Journals

Efficiency improvement and reliability evaluation of small-scale PMSG-based wind energy conversion system using back-to-back T-type converter

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References (37)

Publisher
Springer Journals
Copyright
Copyright © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2021
ISSN
0948-7921
eISSN
1432-0487
DOI
10.1007/s00202-021-01275-9
Publisher site
See Article on Publisher Site

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.

Journal

Electrical Engineering (Archiv fur Elektrotechnik)Springer Journals

Published: Dec 1, 2021

Keywords: Wind energy conversion system (WECS); Permanent magnet synchronous generator (PMSG); T-type converter; Efficiency improvement; Thermal analysis; Reliability

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