Multiterminal DC Wind Farm Collection Grid Internal Fault Analysis and Protection Design

Yang, J., Fletcher, J.E. and O'Reilly, J. (2010) Multiterminal DC Wind Farm Collection Grid Internal Fault Analysis and Protection Design. IEEE Transactions on Power Delivery, 25(4), pp. 2308-2318. (doi:10.1109/TPWRD.2010.2044813)

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Publisher's URL: http://dx.doi.org/10.1109/TPWRD.2010.2044813

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.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:O'Reilly, Professor John
Authors: Yang, J., Fletcher, J.E., and O'Reilly, J.
College/School:College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
Journal Name:IEEE Transactions on Power Delivery
ISSN:0885-8977

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