A new wide-area power monitoring integrated with virtual FDR in South Korea

By introducing a concept of "virtual FDR" to enhance the simulation capability of power monitoring systems, this paper proposes a new wide-area power monitoring integrated with it. The proposed virtual FDR 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. Finally, by transmitting the data into the monitoring system, the monitoring system with virtual FDR can display simulated disturbances and data, including voltages, currents, and frequencies. Various fault conditions were studied to examine the data simulation and monitoring performances of the system based on the virtual FDR.