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A novel transient based protection for ±800 kV UHVDC transmission lines

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4 Author(s)
Wang Gang ; Coll. of Electr. Power, South China Univ. of Technol., Guangzhou, China ; Li Haifeng ; Zhao Jie ; Li Zhikeng

A novel transient based protection for ±800 kV UHVDC transmission lines is proposed in the paper. A ±800 kV UHVDC bipolar model with DC control system is built with PSCAD/EMTDC software. Wavelet-multiresolution signal decomposition technique is applied to analyze the transient voltages. Based on spectral energy distribution of transient voltages, the criteria are presented to distinguish the UHVDC line faults from other transient phenomena. Extensive simulations are used to test the criteria. The results show the proposed transient based protection is highspeed, reliable and suitable for UHVDC lines.

Published in:
AC and DC Power Transmission, 2006. ACDC 2006. The 8th IEE International Conference on

Date of Conference: 28-31 March 2006

Page(s):
281 - 284
ISSN :
0537-9989
Print ISBN:
0-86341-613-6
INSPEC Accession Number:
8995132
Product Type:
Conference Publications

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