원문정보
초록
영어
This paper presents a frequency monitoring system for Korean wide-area power protection based on virtual FDR. The virtual FDR is introduced to enhance the simulation capability of frequency monitoring systems and consists of three parts: modeling, estimation, and simulation. Once a power grid model is obtained in the virtual FDR based on EMTP-RV, the frequency is estimated by DFT filtering and gain compensation based on real and imaginary filtering. Various disturbances and conditions are simulated using the data from the power grid model. The proposed FDR allows the monitoring system to display simulated disturbances and data, including voltages, currents, and frequencies. Various simulation results were given to show of the effectiveness of the proposed frequency monitoring system based on the virtual FDR.
목차
1. Introduction
2. Proposed Frequency Monitoring System based on Virtual FDR
2.1. Modeling
2.2. Estimation
2.3. Frequency Monitoring
3. Simulation Results and Discussions
4. Conclusions
Acknowledgement
References