Multiterminal DC wind farm collection grid internal fault analysis and protection design


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.

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Divisions: Engineering & Applied Sciences > Electrical, Electronic & Power Engineering
Additional Information: © 2010 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Uncontrolled Keywords: fault overcurrent,multiterminal dc wind farm,voltage-source converter (VSC),wind power generation,Electrical and Electronic Engineering,Energy Engineering and Power Technology
Full Text Link: http://ieeexplo ... rnumber=5446298
Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
PURE Output Type: Article
Published Date: 2010-10
Published Online Date: 2010-04-12
Authors: Yang, Jin ( 0000-0002-1026-8495)
Fletcher, John
O'Reilly, John



Version: Accepted Version

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