Learnings from over 25 floating lidar validation campaigns for offshore wind resource assessment

Application of Gaussian Processes to Dual-Doppler LiDAR scanning measurements for high frequency wind field reconstruction

Application of Gaussian Processes to Dual-Doppler LiDAR scanning measurements for high frequency wind field reconstruction

The work here presented aims to demonstrate the potential of applying Gaussian Processes regression, a machine learning technique, for the purposes of extracting more information from scanning LiDARs measurements. With such goal in mind, two major tasks constitute the bulk of the work here presented: (1) application of Gaussian Processes to one...

Verification of LEOSPHERE WINDCUBE V2 unit WLS7-258 at TNO LiDAR Calibration Facility, for offshore measurements at Lichteiland Goeree

As part of the North Sea offshore wind conditions Governmental measurement program a Leosphere Windcube LiDAR is installed at Lichteiland Goeree on 24 October 2019. In order to assure high quality measurements, the LiDAR unit (Leosphere Windcube, WLS7-258, firmware 1.1.15) was validated at the TNO LiDAR Calibration Facility (TLCF) for the period...

Validation of LEOSPHERE WINDCUBE V2 unit WLS7-258 at TNO LiDAR Calibration Facility, for offshore measurements at Lichteiland Goeree

As part of the North Sea offshore wind conditions measurement program a Leosphere LiDAR is installed at Lichteiland Goeree on 24 October 2019. In order to assure high quality measurements, the LiDAR unit (Leosphere Windcube, WLS7-258, firmware 1.1.15) was validated at the TNO LiDAR Calibration Facility (TLCF) for the period of 12 July 2019 until...

Investigation into automating wind turbine underperformance detection using social statistics

This report describes the work performed as part of the PPP Toeslag project “Automated Underperformance Detection for Wind Turbines”. The project aimed to take a novel approach to wind farm condition monitoring and automated alerting, based on Bayesian statistics and the relative behaviour of wind turbines, with the following goals: • To be able...

Verification of ZephIR 300 unit 315 at ECN part of TNO LiDAR Calibration Facility for offshore measurements at Euro Platform (EPL)

As part of the North Sea offshore wind conditions measurement program a ZephIRLiDAR is installed at Euro Platform on 2 August 2018. In order to assure high quality measurements, the LiDAR unit (ZephIR 300, 315) was validated at the ECN part of TNO LiDAR Calibration Facility for the period of 24 April 2018 13:00 until 07 June 2018 10:00. ECN part...

Turbulence assessment using spinner anemometry

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Turbulence assessment using spinner anemometry

The turbulence length scale is measured by a calibrated iSpin anemometer mounted on the spinner of a large turbine. The results obtained in undisturbed and wake conditions are compared to those of a sonic anemometer mounted on an IEC compliant metmast. The wind speed and turbulence intensity results agree well, providing confidence in the iSpin....

Validation of the ZephIR 300 LiDAR at the ECN LiDAR Calibration Facility for the offshore Europlatform measurement campaign

As part of the North Sea offshore wind conditions measurement program a ZephIR LiDAR is installed at the so-called Europlatform on May 9, 2016. In order to assure high quality measurements, the LiDAR unit (ZephIR 300, U308) was first validated at the ECN LiDAR Calibration Facility for the period of February 27 till April 27, 2016. The validation...

Evaluation of the ROMO Wind iSpin Guardian approach

ROMO Wind has requested ECN to evaluate its iSpin Guardian approach, which is an approach for wind farm performance monitoring. ROMO Winds aim is to make wind farm performance more transparent and for this approach to be used in warranty contracts between wind turbine manufacturers and wind farm owners. It is de?ned in six steps: 1. Determine...

Verification of the ZephIR 300 LiDAR at the ECN LiDAR Calibration Facility for the offshore Europlatform measurement campaign

As part of the North Sea offshore wind conditions measurement program a ZephIR LiDAR is installed at the so-called Europlatform on May 9, 2016. In order to assure high quality measurements this LiDAR unit, i.e. ZephIR 300 LiDAR U308, was first validated and verified at the ECN LiDAR Calibration Facility for the period of February 27 till April...

ACT: Advanced Control Tool by ECN

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ECN - Wind energy presentations of the Dutch Wind Workshops 2008

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Modern wind turbine controller design

The ECN Control Design Tool (CDT) is used to design wind turbine feedback control algorithms. Due to its automated code generation it combines high level development with seamless integration with aero-elastic codes and PLC hardware. TURBU greatly enhances the range of controllers that can be developed with the CDT (like individual pitch and...

The development of fuel cell systems for mobile applications

The ECN fuel cell related R&D program on fuel cells is linked to the stationary market and the automotive market. This paper will summarize our R&D activities for the automotive market. The role of fuels cells in two transport application areas will be described: the development of dedicated hydrogen based platforms in combination with...