Title :
Multilevel converters for 10 MW Wind Turbines
Author :
Ke Ma ; Blaabjerg, Frede
Author_Institution :
Dept. of Energy Technol., Aalborg Univ., Aalborg, Denmark
fDate :
Aug. 30 2011-Sept. 1 2011
Abstract :
Several promising multi-level converter configurations for 10 MW Wind Turbines both with direct drive and one-stage gear box drive using Permanent Magnet Synchronous Generator (PMSG) are proposed, designed and compared. Reliability is a crucial indicator for large scale wind power converters, therefore the evaluations are mainly focused on the power device thermal performances, which are closely related to the life time and cost of the converter. Simulation results of different converter candidates regarding the loss and junction temperature are presented and analyzed. It is concluded that the three-level and five-level H-bridge converter topologies both have potential to achieve improved thermal performances compared to the three-level Neutral-Point-Clamped converter topology in the wind power application.
Keywords :
electric drives; gears; permanent magnet generators; power convertors; power generation reliability; synchronous generators; wind turbines; five-level H-bridge converter topology; junction temperature; large scale wind power converter; multilevel converter candidate; one-stage gear box drive; permanent magnet synchronous generator; power 10 MW; power device thermal performance; three level neutral point clamped converter topology; three-level H-bridge converter topology; wind turbine; Gears; Generators; Performance evaluation; Switches; Switching loss; Topology; Wind turbines; Multilevel converters; Thermal stress; Wind energy;
Conference_Titel :
Power Electronics and Applications (EPE 2011), Proceedings of the 2011-14th European Conference on
Conference_Location :
Birmingham
Print_ISBN :
978-1-61284-167-0
Electronic_ISBN :
978-90-75815-15-3
