Paper Title:
The Analysis of the Opto-Couplers Relay Malfunctions in HVDC Control and Protection and the Improvements of the Trip Circuits
  Abstract

Due to the voltage surge and transient disturbances can cause malfunctions of the opto-couplers relay (OCR) easily, which will lead the HVDC to stop working, an optimized project to the trip circuits of HVDC control and protection is proposed. Firstly, the problems of current trip circuits are analyzed. Secondly, the trip circuits of the AC filters and DC filters are improved, as well as the DC protective trip circuits. Finally, choose other relays with better performance and more reliable to instead of the current ones, and improve the stripping link circuits of the DC filter group. The optimized project was used in the Zhaoqing converter station successfully, which is under good operating condition now.

  Info
Periodical
Advanced Materials Research (Volumes 354-355)
Chapter
Chapter 7: High Voltage and Insulation Technology
Edited by
Hao Zhang, Yang Fu and Zhong Tang
Pages
1216-1219
DOI
10.4028/www.scientific.net/AMR.354-355.1216
Citation
W. M. Guo, G. Q. Zuo, R. Lin, "The Analysis of the Opto-Couplers Relay Malfunctions in HVDC Control and Protection and the Improvements of the Trip Circuits", Advanced Materials Research, Vols. 354-355, pp. 1216-1219, 2012
Online since
October 2011
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Price
$32.00
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