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Converter lifetime assessment for doubly-fed induction generators considering derating control strategies at low rotor frequencies

 
: Morisse, M.; Bartschat, A.; Wenske, J.; Mertens, A.

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Volltext (PDF; )

TU München; European Academy of Wind Energy -EAWE-:
6th International Conference "The Science of Making Torque from Wind", TORQUE 2016 : 5-7 October 2016, Munich, Germany; Proceedings
Bristol: IOP Publishing, 2016 (Journal of physics. Conference series 753)
Art. 112003, 11 S.
International Conference "The Science of Making Torque from Wind" (TORQUE) <6, 2016, Munich>
Englisch
Konferenzbeitrag, Elektronische Publikation
Fraunhofer IWES ()
wind turbine; drive train; modelling; simulation; power converter; interaction; lifetime; Control Strategy

Abstract
In this paper, various control strategies around the synchronous operating point with the aim to reduce the thermal loading of the rotor-side converter in wind turbines equipped with doubly-fed induction generators are investigated regarding their assets and drawbacks. It is shown that there are various possibilities to prolong the lifetime expectation of the converter regarding its thermal stress by implementing these control strategies. However, every control measure requires a careful design process or a slight adjustment of the system to ensure a positive effect on the overall behaviour of the wind turbine.

: http://publica.fraunhofer.de/dokumente/N-417662.html