Title :
High power medium frequency DC/DC power converters for wind application
Author :
Zhou, Yangzhong ; Macpherson, D.E. ; Blewitt, W.
Author_Institution :
Sch. of Eng., Univ. of Edinburgh, Edinburgh, UK
Abstract :
In an offshore wind HVDC system, one option for connecting the variable speed wind turbine/permanent magnet generators to the DC grid is via passive rectifiers in series with DC/DC converters. This paper focuses on the DC/DC converters in the PMSG-rectifier-DC/DC converter the system. Three DC/DC converter topologies are investigated supplied by MW level PMSG wind generators. The topologies include the Phase Shift Full Bridge Converter, Series Load Resonant (SLR) Full Bridge Converter and Thyristor Based Resonant Converter. Detailed models of the DC/DC converters are built in the PLECS simulator. A 15kW 150V/600V 500Hz Phase Shift full bridge DC/DC converter prototype has been built to validate the simulations.
Keywords :
DC-DC power convertors; HVDC power convertors; offshore installations; permanent magnet generators; rectifiers; resonant power convertors; synchronous generators; wind power plants; wind turbines; PLECS simulator; PMSG-rectifier; SLR full bridge converter; converter topologies; dc grid; frequency 500 Hz; high power medium frequency dc-dc power converters; offshore wind HVDC system; passive rectifiers; permanent magnet synchronous generator; phase shift full bridge converter; power 15 kW; series load resonant converter; thyristor based resonant converter; variable speed wind turbine; voltage 150 V; voltage 600 V; wind generators; DC-DC converter; PMSG; medium frequency; offshore wind;
Conference_Titel :
Power Electronics, Machines and Drives (PEMD 2014), 7th IET International Conference on
Conference_Location :
Manchester
Electronic_ISBN :
978-1-84919-815-8
DOI :
10.1049/cp.2014.0520
