GPS Synchronization and EMC of Harmonic and Transient Measurement Equipment in Offshore Wind Farms

Łukasz Hubert Kocewiak, Iván Arana, Jesper Hjerrild, Troels Sørensen, Claus Leth Bak, Joachim Holbøll, Trond Kvamsdal, Ole Gunnar Dahlhaug John Olav Giaever Tande

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    Abstract

    The challenges of harmonic and transient measurements in wind farms are described in this paper. It is shown that appropriate measurements of harmonic and transient phenomena in offshore wind farms are essential for data analysis and model creation/validation of components or subsystems. The GPS synchronization, electromagnetic compatibility (EMC) and interference (EMI) challenges during the development, construction, testing and installation of a measurement system for multi-point, high-speed and long-term data logging is described in this paper. The presented measurement system was tested in a rough offshore environment at Avedøre Holme and Gunfleet Sands offshore wind farms.The paper will describe the application of GPS technology in synchronised measurements carried out at Avedøre Holme and Gunfleet Sands wind farms. Different aspects of software development and hardware configuration in order to optimise measurement systems reliability during offshore measurements will be presented. Also real-life examples of results from both offshore measurement campaigns will be described. Some limitations, improvements and results of the measurement system will be explained from both harmonic and transient measurements. The paper clearly presents possible electromagnetic interference in wind turbines that can affect measurements. Also the application of appropriate mitigation techniques such as data acquisition board configuration, coaxial cable leading, as well as usage of EMC-proof boxes for high frequency measurements is described.
    Original languageEnglish
    JournalEnergy Procedia
    Volume24
    Pages (from-to)212-228
    ISSN1876-6102
    DOIs
    Publication statusPublished - 2012
    Event9th Deep Sea Offshore Wind R&D Seminar - Trondheim, Norway
    Duration: 19 Jan 201220 Jan 2012
    Conference number: 9
    http://www.sintef.no/Projectweb/Deepwind_2012/

    Conference

    Conference9th Deep Sea Offshore Wind R&D Seminar
    Number9
    Country/TerritoryNorway
    CityTrondheim
    Period19/01/201220/01/2012
    Internet address

    Keywords

    • GPS synchronization
    • EMC
    • EMI
    • harmonic measurements
    • offshore wind farm
    • transient measurements

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