Details to the IEA Wind Task 32 Workshop #8 on Certification Of

January 2018 Details to the IEA Wind Task 32 Workshop #8 on

Certification of Lidar-Assisted Control Applications

Date: 30. – 31. January 2018 Venue: DNV GL, Hamburg, Germany Workshop leader: Nikolai Hille, DNV GL

Objectives of the Workshop  Gain basic understanding of Type Certification of wind turbines (WT) and what makes certification special with Lidar Assisted Control (LAC).  Bridge the gap between the different parties (i.e., WT manufacturers, Lidar manufacturers, research institutes and certification bodies) to gain a common understanding of each other’s perspectives on certification with LAC. Collect ideas to understand, adapt and improve system interfaces to ease integration of the different components and processes.  Use the expertise of WT and Lidar manufacturers, researchers and certification bodies to identify ideas for supplements that should be made to the existing design standards to account for LAC.  Discuss and develop appropriate approaches in component modelling and verification for certification.

Concept The first day of the workshop serves to create a common understanding of the topic and to present and discuss the challenges for the type certification of LAC. We arranged the following sessions: 1. What is type certification and how is it affected by LAC? 2. What are the challenges for type certification with LAC for the various involved groups? a. Turbine manufacturer b. Lidar manufacturer c. Consultants d. Researchers On the second day, four working groups will discuss the following topics led by an expert moderator: 1. Lidar system 2. Simulation models and load simulations 3. Control and Protection System 4. Prototype measurements Every 45 minutes, participants will have the possibility to switch rooms and contribute to other topics. Finally, the results will be presented and discussed in a plenary session.

Expected Outcome  Develop approaches and draft text for a best practices document as a basis to certify WT with LAC.  The drafted text from the workshop will be edited by motivated participants to form a document “Best Practices for Certification of Lidar-Assisted Control Applications”. The document will be distributed to all participants and made available on the Task 32 website.  The contents of this document will be incorporated into DNV GL’s guidelines on WT certification with LAC planned for 2018.

Practical Arrangements

Venue Information DNV GL Office Hamburg --- Media Room --- Brooktorkai 18 D-20457 Hamburg Germany Please check in at the DNV GL reception on arrival! More details on how to find the DNV GL Office in Hamburg can be found on pages 5 and 6.

Contact Information Please contact Nikolai Hille (workshop leader), Eric Simley (IEA Wind Task 32 Advisory Board member for loads and control) or David Schlipf (IEA Wind Task 32 Operating Agent) with any questions you may have about the workshop.

Optional side event (16:00 – 17:30): After the workshop all participants are invited to join a nice stroll of about 20-30 min from the DNV GL office through the modern harbour city district to the new Elbphilharmonie concert hall. There, we will visit its open air panorama terrace which gives a marvellous view over the harbour and parts of Hamburg and also have an impression of the extraordinary building itself. Please indicate here before Friday 19, if you will be able to participate in the optional visit of the Elbphilharmonie.

Program First Day, Tuesday, January 30 10:00 Registration 10:30 Welcome and Introduction  Welcome to DNV GL (Steffen Haupt, DNV GL), 5 min  Introduction to IEA Wind Task 32 (David Schlipf, SWE), 5 min  Introduction to WS and objectives (Nikolai Hille, DNV GL), 5 min  Introduction to Lidar-Assisted Control (David Schlipf, SWE), 15 min  Presentation round (all participants), 30 min 11:30 Coffee Break 11:45 What is type certification and how is it affected by LAC?  Overview of certification (Mike Woebbeking, DNV GL), 30 min  Implications of LAC on the certification of Wind Turbines (Nikolai Hille, DNV GL), 30 min  Introduction to ISO 13849: Safety-related parts of control systems (Reinhard Schleeßelmann, DNV GL), 15 min 13:00 Lunch at DNV GL canteen 14:00 What are the challenges for type certification with LAC for lidar manufacturers?  Practical matters affecting the utility of nacelle mounted lidars for turbine loads measurements and control (Chris Slinger, ZephIR), 20 min  Description of realistic lidar modelling and lessons learned from field tests for lidar- assisted turbine control (Shumpei Kameyama, Mitsubishi Electric), 10 min  The necessity of a representative Lidar simulator (Paul Mazoyer, Leosphere), 20 min 14:50 What are the challenges for type certification with LAC for turbine manufacturers?  Goldwind EFarm - Lidar Assisted Control Application (Bin Wang, Goldwind), 20 min  An industrial perspective on Lidar-Assisted Control at Envision Energy (Eric Simley, Envision), 20 min 15:30 Coffee Break 15:45 What are the challenges for type certification with LAC for consultants?  Considerations in Design Load Cases when using LIDAR Assisted Control (Oscar Hugues Salas, DNV GL), 20 min  Prototype measurements on Wind Turbines - Considering LiDAR Assisted Control (Axel Sachse, DNV GL), 20 min  Cross-tool realistic lidar simulations (Steffen Raach, sowento), 15 min 16:40 What are the challenges for type certification with LAC for researchers?  Lessons learned from field testing experience on using lidars with wind turbine controls research (Andrew Scholbrock, NREL), 20 min  Overview of traditional lidar modeling and wind evolution modeling methods (Eric Simley, Envision), 15 min  Turbulent extreme event simulations for LAC (Tim Hagemann, SWE), 15 min 17:30 Split-up in working groups, preparation for day 2, 30 min 19:00 Dinner close to the DNV GL office (see page 6 for details)

Second Day, Wednesday, January 31 9:00 How should we certify wind turbines with LAC? 4 floating working groups rotating every 45 min with a 10 min break in between 12:30 Lunch at DNV GL canteen 13:30 Presentation/discussion of workshop’s results: “Suggestions for Best Practices” 15:30 End of Workshop 16:00 Optional event: Visit of Elbphilharmonie (see page 2)

Participant List Name Country Institution Andrew Scholbrock USA NREL Ashim Giyanani Netherlands TU Delft Axel Sachse Germany DNV GL Carlo Bottasso Germany TU München Chris Slinger UK ZephIR Lidar Christophe Lepaysan France Epsiline Claudia Meyer Germany DNV GL David Schlipf Germany SWE University Stuttgart Dennis de Bot Netherlands Lagerwey Wind Detlef Stein Germany Multiversum Dominique Philipp Held Denmark Windar Photonics Eric Simley USA Envision Energy Ervin Bossanyi UK DNV GL Fabian Anstock Germany HAW Hamburg Fabrice Guillemin France IFP Energie Nouvelles Florian Haizmann Germany SWE University Stuttgart Francesco Perrone Germany GE Frank Scheurich Denmark DNV GL Gerhard Peters Germany Metek Haimei Zhu China Beijing New Energy Technology Co. Hans-Juergen Kirtzel Germany Metek Holger Fürst Germany SWE University Stuttgart Iñaki Lezaun Mas Spain Gamesa Inga Reinwardt Germany HAW Hamburg Joern Jacobsen Germany Enercon Johan Olaison Germany DNV GL Johel Rodriguez Spain Sany Julen Ortega Rodriguez Spain Gamesa Julian Hieronimus Germany M.O.E. GmbH Lei Liu China Goldwind Liang Dong China Envision Energy Lin Hu China Beijing New Energy Technology Co. Linpeng Wang China Envision Energy Martijn Zijlstra Netherlands Lagerwey Wind Matthieu Boquet France Leosphere Mike Woebbeking Germany DNV GL Mingyuan Jiang China Goldwind Morten Hartvig Hansen Denmark University of Southern Denmark Nikolai Hille Germany DNV GL Nils Gerke Germany HAW Hamburg Oscar Hugues Salas UK DNV GL Paul Mazoyer France Leosphere Piet Markmann Germany Metek Reinhard Schleeßelmann Germany DNV GL Richard Welton UK Texo Drone Survey and Inspection Shumpei Kameyama Japan Mitsubishi Electric Corporation Stefan Löw Germany Siemens Steffen Haupt Germany DNV GL Steffen Raach Germany sowento Tim Hagemann Germany SWE University Stuttgart Theodore Holtom UK Wind Farm Analytics Torben Mikkelsen Denmark DTU Wind Energy Ulf Schaper Germany Enercon Wang Bin China Goldwind Wei Yufeng China MingYang Yago Urroz Spain Sany

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