new guideline for offshore wind turbines
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NEW GUIDELINE FOR OFFSHORE WIND TURBINES. 2013-02-07, Mike Wöbbeking. Content. GL Renewables Certification – who we are Challenges offshore Offshore Guideline 2012. Germanischer Lloyd (GL). technical surveillance society founded 1867 renewables since 1977 own rules and guidelines - PowerPoint PPT PresentationTRANSCRIPT
NEW GUIDELINE FOR OFFSHORE WIND TURBINES
2013-02-07, Mike Wöbbeking
Content
2013-02-07NEW GUIDELINE FOR OFFSHORE WIND TURBINES
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1. GL Renewables Certification – who we are
2. Challenges offshore
3. Offshore Guideline 2012
Germanischer Lloyd (GL)
2013-02-07NEW GUIDELINE FOR OFFSHORE WIND TURBINES
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• technical surveillancesociety
• founded 1867
• renewables since 1977
• own rules and guidelines
• ~7000 persons worldwide
• ~230 locations
• ~80 countries
Geographical Reach of GL Renewables
2013-02-07NEW GUIDELINE FOR OFFSHORE WIND TURBINES
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>900 staff, in 43 locations, across 23 countries
Vancouver
Ottawa
Portland
San Diego
Montreal
Peterborough
Austin
Monterrey
Porto Alegre
Beijing
Tokyo
Shanghai
Mumbai
Bangalore
Newcastle
Melbourne
Wellington
HeerenveenSint Maarten Kaiser-Wilhelm- Koog
BristolDublinParis
Izmir
CopenhagenHinnerupOldenburgHamburgWarsaw
Lisbon Barcelona ZaragozaMadrid
Imola
Glasgow
LondonSlough
GL Renewables Certification
• local offices in 6 countries
• Present in three major regions: Americas, Asia, Europe
• ~185 staff worldwide
Challenges in the offshore wind industry• new industry with few experienced
partners particular in manufacturing • harsh weather conditions, challenging
environmental conditions• growing number and increase in
number of size of projects • multiple partners in contracts and
projects• scarce expert resources• availability of grid connection• CoE (Cost of Energy)• HSE (Health, Safety & Environment)• …
2013-02-07NEW GUIDELINE FOR OFFSHORE WIND TURBINES
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Source: DOTI
Challenges in the offshore wind industry• new industry with few experienced
partners particular in manufacturing • harsh weather conditions, challenging
environmental conditions• growing number and increase in
number of size of projects • multiple partners in contracts and
projects• scarce expert resources• availability of grid connection• CoE (Cost of Energy)• HSE (Health, Safety & Environment)• …
2013-02-07NEW GUIDELINE FOR OFFSHORE WIND TURBINES
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Source: DOTI
2013-02-07NEW GUIDELINE FOR OFFSHORE WIND TURBINES
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December 2012
New Offshore Guideline
• Latest developments in offshore industry• Latest testing conditions, safety systems
and quality requirements• Review and testing of control systems due
to increased size of turbines and mitigation of loads
• Novel analysis methods for piles under cyclic axial loading considering the high frequency of tensial cyclic loads
• Requirements for floating wind turbines regarding stability and mooring safety requirements are addressed
• And more
2013-02-07NEW GUIDELINE FOR OFFSHORE WIND TURBINES
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NEW: Released in December 2012
2013-02-07NEW GUIDELINE FOR OFFSHORE WIND TURBINES
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20122005
Same look andstructure
2013-02-07NEW GUIDELINE FOR OFFSHORE WIND TURBINES
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New content
2013-02-07NEW GUIDELINE FOR OFFSHORE WIND TURBINES
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New content
More delicious
2013-02-07NEW GUIDELINE FOR OFFSHORE WIND TURBINES
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Type Certification
• The Guideline for Offshore Wind Turbines was improved to fully comply with the (onshore) Guideline for Wind Turbines of 2010 (GL 2010 -> GL 2012) and to cover IEC 61400-3 / IEC 61400-1
• Type Certification especially for offshore wind turbines, floating and fixed• D-Design assessment included as a "feasibility check" prior to the
updated C-Design Assessment for prototypes• A- and B- Type Offshore Certificate introduced
(B-type allowing for non-safety relevant open items)• Component certification for all major parts included• Improvement of section regarding assessment of Implementation of the
design-related requirements in Production and Erection (IPE) and introduction of Critical Manufacturing Processes (CMP)
• Improved section ‘Test within the scope of the design assessment’. The section now gives more details, the scope is extended
• Improved section ‘Load measurements’. Additional requirements were added for measurements at offshore wind turbines and floating wind turbines
Implementation of Design Requirements
in Production and Erection
Implementation of Design Requirements
in Production and Erection
Design Assessment
Design Assessment
Prototype Testing
Prototype Testing
Quality Managemen
t
Quality Managemen
t
Type Certificate
Type Certificate
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Project Certification
• A- and B- Project Certificate introduced (B-type allowing for non-safety relevant open items)
• Site design conditions and design basis requirements reviewed and improved
• Site-specific design requirements improved (load analysis, foundation design, electrical installation)
• Surveillance during manufacture, transport and installation reviewed. Surveillance for 25% of the turbines required for project certification
• Commissioning updated, witnessing for 10% of the turbines is necessary
2013-02-07NEW GUIDELINE FOR OFFSHORE WIND TURBINES
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Floating Wind Turbines
• Different concepts of floating wind turbines introduced including their stability principles
• Prototype testing of floating wind turbines introduced
• Safety system requirements extended to floating (tightness and draft, position, mooring system, motions monitoring)
• Freeboard, intact and damage stability requirements have been introduced. Requirements fulfil international codes
• Special load cases for floating turbines. A load case group DLC 10.x is introduced to consider damage stability and mooring line loss situations
• Consideration of additional parameters in control design (e.g. body movement)• Section with requirements for floating structures, including mooring equipment
requirements• Requirements for towing of floating wind turbines are included
Source: www.siemens.com
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Turbine• Requirements introduced for external power supply based
on project experience • Requirements and classification of materials improved• Load case definitions improved and simplified• New list ‘Load assessment relevant data’, to support
design process• New appendix table ‘List of protection functions (example)’• Section "Drive Train Dynamics" included• Guidance on specification of synthetic SN-curves• Requirements for corrosion protection extended• Improved section ‘Automatic ice
detection’• New sections including heli-hoist
platforms, aviation obstruction lights and met masts
Sou
rce:
Sie
men
s
2013-02-07NEW GUIDELINE FOR OFFSHORE WIND TURBINES
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Transport and Installation• Substantially modified to cover all
operations starting from load-out and transportation till the lifting operations and installation procedures including vessel positioning
• Harmonized with other GL rules in offshore sector
• The components addressed are: • Load-out (floating, lifted, skidded, by trailers, grounded)• Transportation, including sea-fastening and towing (barges, floating)• Lifting• Installation of jackets, piles and topside structures• Vessel positioning• Pipe / cable laying
Mike Woebbeking
Germanischer Lloyd Industrial Services GmbHRenewables Certification
Vice PresidentHead of Certification Body
Brooktorkai 1820457 Hamburg
GERMANY
Phone: +49 (0) 40 - 3 61 49 - 33 07 Fax: +49 (0) 40 - 3 61 49 - 17 20
Email: [email protected] www: http://www.gl-group.com/GLRenewables
Thank you very much for your attention
Please visit us at booth No. A-C60.