PD IEC TS 61400-3-2:2019 Wind energy generation systems. Design requirements for floating offshore wind turbines

PD IEC TS 61400-3-2:2019

Wind energy generation systems. Design requirements for floating offshore wind turbines

Status : Current   Published : April 2019

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HARDCOPY



What is this standard about?

This part of IEC 61400, which is a technical specification, specifies additional requirements for assessment of the external conditions at a floating offshore wind turbine (FOWT) site and specifies essential design requirements to ensure the engineering integrity of FOWTs. Its purpose is to provide an appropriate level of protection against damage from all hazards during the planned lifetime.

This document focuses on the engineering integrity of the structural components of a FOWT but is also concerned with subsystems such as control and protection mechanisms, internal electrical systems and mechanical systems.

A wind turbine is considered as a FOWT if the floating substructure is subject to hydrodynamic loading and supported by buoyancy and a station-keeping system. A FOWT encompasses five principal subsystems: the RNA, the tower, the floating substructure, the station-keeping system and the on-board machinery, equipment and systems that are not part of the RNA.

The following types of floating substructures are explicitly considered within the context of this document:

a) ship-shaped structures and barges,

b) semi-submersibles (Semi),

c) spar buoys (Spar),

d) tension-leg platforms/buoys (TLP / TLB).

In addition to the structural types listed above, this document generally covers other floating platforms intended to support wind turbines. These other structures can have a great range of variability in geometry and structural forms and, therefore, can be only partly covered by the requirements of this document. In other cases, specific requirements stated in this document can be found not to apply to all or part of a structure under design. In all the above cases, conformity with this document will require that the design is based upon its underpinning principles and achieves a level of safety equivalent, or superior, to the level implicit in it.

This document is applicable to unmanned floating structures with one single horizontal axis turbine. Additional considerations might be needed for multi-turbine units on a single floating substructure, vertical-axis wind turbines, or combined wind/wave energy systems.

This document is to be used together with the appropriate IEC and ISO standards mentioned in Clause 2 of this document. In particular, this document is intended to be fully consistent with the requirements of IEC 61400-1 and IEC 61400-3-1. The safety level of the FOWT designed according to this document is to be at or exceed the level inherent in IEC 61400-1 and IEC 61400-3-1.




Standard NumberPD IEC TS 61400-3-2:2019
TitleWind energy generation systems. Design requirements for floating offshore wind turbines
StatusCurrent
Publication Date16 April 2019
Normative References(Required to achieve compliance to this standard)API RP 2T (R2015): 2010, API RP 2FPS: 2011, ISO 19901-4:2016, IEC 61400-3-1:2019, ISO 19901-7:2013, ISO 19906:2010, ISO 19904-1:2006, ISO 19901-1:2015, IEC 61400-1 Ed.4.0, ISO 19901-6:2009
Informative References(Provided for Information)DNV, DNV-OS-J103, ITTC:2017, ISO 2394:19982015, ISO 19900:2013, ISO 12944-9:2018
International RelationshipsIEC/TS 61400-3-2 Ed.1.0
DescriptorsWind power, Design, Turbines, Wind turbines, Winds
ICS27.180
CommitteePEL/88
ISBN978 0 580 87990 6
PublisherBSI
FormatA4
DeliveryYes
Pages54
File Size1.311 MB
Price£254.00


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