09:40 “Welcome” - PCWG > Power Curve Working Group

Introduction, Agenda and Review of Actions
9th Meeting: 12 December 2014 - Glasgow
Motivation: to agree the 2015 roadmap for the PCWG.
Morning Session: 09:30 – 13:00
09:30 - 09:40 “Welcome”, Ralph Torr (ORE Catapult – Event Host)
09:40 - 10:00 PCWG Status & Action Update – Peter Stuart (RES)
10:00 - 10:30 Round Robin 4 Results Overview and Discussion
10:30 - 11:30 2015 Road Map Discussion (All):
Discussion of proposed PCWG data sharing initiative.
Survey results
Presentation of draft roadmap
Group Exercise
11.30 – 11.45 Coffee Break
11:45 - 13:00 Road Map Discussion Continue (All)
13.00 – 14.00 Lunch
14:00 - 15:00 Afternoon Presentations Session Part 1
14:00 – 14:15 Richard Whiting DNV GL: “Modelling Type B effects in the 4th Quadrant
using Bladed)
14:15 – 14:30 Stuart Baylis, Prevailing “A Novel Method for Improving Turbine
Performance Predictions by Considering the Frequency Distribution of Shear”
14:30 – 14:45 “Redefinition of Power Curves: Electric vs. Kinetic Power”, Erik Tüxen
14:45 – 15:00 Presentation Discussion
15:15 - 16:00 Afternoon Presentations Session Part 2: LiDARs
15:15 – 15:30 Lidar observations of the compression zone and capabilities as a
turbulence instrument”, Peter Clive Sgurr
15:30 – 15:45 Michael Harris, ZephIR, "ANALYSIS OF REAL WORLD TURBINE
15:45 – 16:00 Presentation Discussion
Discussion Session: 16.00 – 16.45
Finalisation of turbulence correction consensus analysis and associated
Review of Proposed Round Robin 5: “Power Deviation Matrices”
Afternoon Wrap Up: 16.45 – 17.00
Venue for next meeting
Public distribution of presentations and minutes
Review of Previous Actions
Actions from Dec 2013 Meeting
• Develop glossary of terms.
• Perform round robin exercise for Veer term of REWS method using Dataset 3.
• Improve consensus analysis for turbulence renormalisation method making
calculation steps clearer e.g. flow charts.
• Publically distribute Inner-Outer range concept document.
• Identify and distribute additional validation datasets:
• Galion dataset from SSE
• Dedicate portion of next meeting to Type B effects.
1st April 2014
• Complete Rotor Equivalent Wind Speed (Veer) Exercise (revised deadline 27th of
• Develop Guideline Document on the Presentation of Power Curve Information
• Develop Guideline Document on the Application of the Turbulence Renormalisation
• Engage with research institutions to test Type B hypotheses using ‘open-source’
• Develop proof of concept for the ‘Black Box Model’ approach.
• Release python implementation of consensus analysis as open source.
• Investigate the possibility of hosting a PCWG event in the US.
• Publicise meeting via AWEA
• Release 4th RR exercise
September 2014
• Improve documentation of consensus analysis of turbulence correction (flow charts)
• Add user interface to Open Source Tool
• Publish Road Map for PCWG 2015 activities.
• Complete 4th Round Robin in advance of December Meeting
• Arrange a Round Robin on Power Deviation Matrix Method
• Arrange a Round Robin on Rotor Equivalent Wind Speed considering inflow.
• Explore enhanced data sharing exercise (possibly utilising open source tool).
• Revisit proposal to use Open Source Rotor to investigate “Type B” performance
October Meeting Key Outcomes
• The members present agreed that the PCWG should continue its activities for 2015. A
roadmap will be prepared detailing the planned objectives and activities for 2015.
• The IEC 61400-12-1 committee and PCWG should aim to hold a further joint meeting
in 2015 (timed with an existing 61400-12-1 meeting to minimise travel).
• A manufacturer PCWG member will investigate supplying climate/site specific power
curves for forthcoming the round robin.
• PCWG to add action to 2015 roadmap to develop data specification for climate/site
specific power curves. This should detail both the input data required by a
manufacturer to generate a site specific power curve and the output data required by
a developer/consultant in order to do their analysis.
• PCWG to explore establishing a named liaison between the PCWG and the IEC 6140015 (Resource Assessment) standard committee.
• PCWG to explore preparing a document that would outline the benefits of
manufacturers supplying power deviation matrices on an informative basis.
• PCWG to conduct round robin on application of power deviation method.
• PCWG members to explore release of additional datasets to the PCWG.
• PCWG to explore adding IEC uncertainty calculation to PCWG open source tool.

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