Multiterminal DC wind farm collection grid internal fault analysis and protection design: IEEE Transactions on Power Delivery

J. Yang, J.E. Fletcher, J. O'Reilly

    Research output: Contribution to journalArticlepeer-review

    338 Scopus citations

    Abstract

    The multiterminal dc wind farm is a promising topology with a voltage-source inverter (VSI) connection at the onshore grid. Voltage-source converters (VSCs) are robust to ac-side fault conditions. However, they are vulnerable to dc faults on the dc side of the converter. This paper analyzes dc faults, their transients, and the resulting protection issues. Overcurrent faults are analyzed in detail and provide an insight into protection system design. The radial wind farm topology with star or string connection is considered. The outcomes may be applicable for VSCs in the multi-VSC dc wind farm collection grid and VSC-based high-voltage direct current (HVDC) offshore transmission systems. © 2010 IEEE.
    Original languageBritish English
    Pages (from-to)2308-2318
    Number of pages11
    JournalIEEE Trans Power Delivery
    Volume25
    Issue number4
    DOIs
    StatePublished - 2010

    Keywords

    • Fault overcurrent
    • multiterminal dc wind farm
    • voltage-source converter (VSC)
    • wind power generation
    • Electric load dispatching
    • Electric power generation
    • Electric utilities
    • Farms
    • Overcurrent protection
    • Power converters
    • Topology
    • Wind power
    • AC-side
    • Dc fault
    • DC side
    • Fault conditions
    • High voltage direct current
    • Internal faults
    • Multi terminals
    • Over current
    • Protection systems
    • Radial winds
    • Transmission systems
    • Voltage-source converter
    • Voltage-source inverter
    • Wind farm
    • DC power transmission

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