Power devices loading in multilevel converters for 10 MW wind turbines

Author

Ma, Ke ; Blaabjerg, Frede ; Xu, Dehong

Author_Institution

Dept. of Energy Technol., Aalborg Univ., Aalborg, Denmark

fYear

2011

fDate

27-30 June 2011

Firstpage

340

Lastpage

346

Abstract

Several promising multilevel converter solutions for 10 MW wind turbines using permanent magnet synchronous generators are proposed, designed and compared both with one-stage gear-box drive and direct drive systems. The current and loss distributions, as well as the utilization of power devices in each converter are analyzed based on simulation results. Finally, the total loss and efficiency comparison are given. It is concluded that five-level and three-level H-bridge topologies show higher efficiency either in the power conversion or in the device utilization compared to the three-level Neutral-Point-Clamped topology with both the direct-drive and one-stage gear box drive systems.

Keywords

current distribution; permanent magnet generators; power convertors; synchronous generators; wind turbines; H-bridge topology; current distribution; direct drive system; loss distribution; multilevel converter; neutral-point-clamped topology; one-stage gear-box drive system; permanent magnet synchronous generator; power 10 MW; power device loading; power device utilization; wind turbine; Gears; Generators; Loading; Switches; Topology; Wind turbines; Windings;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics (ISIE), 2011 IEEE International Symposium on

Conference_Location

Gdansk

ISSN

Pending

Print_ISBN

978-1-4244-9310-4

Electronic_ISBN

Pending

Type

conf

DOI

10.1109/ISIE.2011.5984182

Filename

5984182