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Design of a Medium Voltage Generator and Power Converter for High Power Wind Energy Conversion Systems

 
: Steffen, Jonas; Lengsfeld, Sebastian; Jung, Marco; Ponick, Bernd; Herranz Gracia, Mercedes; Spagnolo, Aristide; Schleicher, Klaus; Schäfer, Klaus

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Institute of Electrical and Electronics Engineers -IEEE-:
UPEC 2020, 55th International Universities Power Engineering Conference. Conference Proceedings : Verifying the Targets, Virtual Conference, Torino, Italy, 1-4 September 2020
Piscataway, NJ: IEEE, 2020
ISBN: 978-1-7281-1078-3
ISBN: 978-1-7281-1079-0
S.234-238
International Universities Power Engineering Conference (UPEC) <55, 2020, Online>
Bundesministerium fur Wirtschaft und Energie BMWi (Deutschland)
0324276A; MagnetRingIII
Entwurf und Integration eines segmentierten Mittelspannungsgenerators für große Windenergieanlagen
Englisch
Konferenzbeitrag
Fraunhofer IEE ()
wind energy conversion systems; permanent magnet synchronous generator; DC-cascade; power converter; medium voltage insulation; PMSG; WECS

Abstract
In this paper a new topology of a gearless, segmented synchronous generator and power converter system is presented to address medium output voltage in wind power applications. To fulfill the boundary condition, the generator has a high pole count and a stator divided into several 3-phase segments with their own rectifier. With the resulting DC-cascade (series connection of the rectifiers) it is possible to achieve a medium output voltage with low voltage converters and without a bulky transformer. This new topology of the DC-cascade reduces the effort to achieve medium DC voltage in wind turbines and simplifies the converter system.

: http://publica.fraunhofer.de/dokumente/N-624801.html