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

fYear

2011

fDate

26-29 April 2011

Firstpage

1

Lastpage

5

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ICISA.2011.5772386

Filename

5772386