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Frequency Monitoring for Wide-Area Power Grid Protection

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6 Author(s)
Junho Ko ; Korea Univ. of Technol. & Educ., Cheonan, South Korea ; Chul-Won Park ; Dong-Kwang Shin ; Chul-Hwan Kim
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There have been recent research activities on GPS-based FNET to prevent wide-area blackouts by monitoring frequency deviation. This study developed a system for monitoring regional frequencies in power grid modeling as an advanced research project for implementing intelligent wide-area protective relaying. The system was implemented by modeling an actual 345 kV transmission system using EMTP-RV and by measuring voltages and currents at 5 regions. The frequencies were estimated with a frequency estimation algorithm using gain compensation. The monitoring software implemented by this study was used to visualize frequency propagation effects and review simulation processes in various failure conditions.

Published in:

2011 International Conference on Information Science and Applications

Date of Conference:

26-29 April 2011