Title :
Frequency Monitoring for Wide-Area Power Grid Protection
Author :
Ko, Junho ; Park, Chul-Won ; Shin, Dong-Kwang ; Kim, Chul-Hwan ; Kim, Hak-Man ; Kim, Yoon Sang
Author_Institution :
Korea Univ. of Technol. & Educ., Cheonan, South Korea
Abstract :
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.
Keywords :
power grids; power system measurement; power system protection; power system simulation; EMTP-RV; GPS-based FNET; frequency deviation monitoring; monitoring software; power grid modeling; transmission system; voltage 345 kV; wide-area blackouts; wide-area power grid protection; wide-area protective relaying; Digital filters; Equations; Frequency estimation; Monitoring; Power grids;
Conference_Titel :
Information Science and Applications (ICISA), 2011 International Conference on
Conference_Location :
Jeju Island
Print_ISBN :
978-1-4244-9222-0
Electronic_ISBN :
978-1-4244-9223-7
DOI :
10.1109/ICISA.2011.5772386
