Mechanical stresses in fixed-speed wind turbines due to network disturbances

Papathanassiou, SA; Papadopoulos, MP

dc.contributor.author	Papathanassiou, SA	en
dc.contributor.author	Papadopoulos, MP	en
dc.date.accessioned	2014-03-01T01:16:44Z
dc.date.available	2014-03-01T01:16:44Z
dc.date.issued	2001	en
dc.identifier.issn	0885-8969	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/14186
dc.subject	Distribution system faults	en
dc.subject	Induction generators	en
dc.subject	Mechanical stresses	en
dc.subject	Unbalanced operation	en
dc.subject	Wind turbines	en
dc.subject.classification	Energy & Fuels	en
dc.subject.classification	Engineering, Electrical & Electronic	en
dc.subject.other	Asynchronous generators	en
dc.subject.other	Electric fault currents	en
dc.subject.other	Electric network topology	en
dc.subject.other	Fatigue of materials	en
dc.subject.other	Stress analysis	en
dc.subject.other	Torque	en
dc.subject.other	Voltage distribution measurement	en
dc.subject.other	Mechanical stresses	en
dc.subject.other	Wind turbines	en
dc.title	Mechanical stresses in fixed-speed wind turbines due to network disturbances	en
heal.type	journalArticle	en
heal.identifier.primary	10.1109/60.969476	en
heal.identifier.secondary	http://dx.doi.org/10.1109/60.969476	en
heal.language	English	en
heal.publicationDate	2001	en
heal.abstract	Electrical faults and other network disturbances generate transients of the generator electromagnetic torque which result in significant stresses for the wind turbine (WT) mechanical system and may also have a detrimental effect on the fatigue life of important drive train components, such as the gearbox. In this paper, the effect of faults and other disturbances, common in rural medium voltage (MV) distribution systems, is analyzed for a typical fixed speed WT, equipped with an induction generator. The resulting torque transients are evaluated and their propagation in the drive train is examined. Important conclusions are drawn With respect to the type of electrical faults to be considered in the design and certification of WTs according to the current IEC 61400-1 Standard. Although the emphasis is placed on the developed torque transients, the methodology presented is also suitable for analyzing electrical stresses in the generator, due to over-currents or over-voltages.	en
heal.publisher	IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC	en
heal.journalName	IEEE Transactions on Energy Conversion	en
dc.identifier.doi	10.1109/60.969476	en
dc.identifier.isi	ISI:000172670300009	en
dc.identifier.volume	16	en
dc.identifier.issue	4	en
dc.identifier.spage	361	en
dc.identifier.epage	367	en