Reliable operation of power systems requires detailed models of the network during system studies. Transmission line parameters are essential for accurate simulation results as many of power system studies depend upon the precision of transmission line parameters. In this paper, a noise adaptable synchrophasor based real-time parameters monitoring algorithm for a series compensated transmission line is proposed. The algorithm requires positive sequence voltage and current phasors of the sending and the receiving ends as inputs at the phasor measurement unit (PMU) reporting rate. The proposed algorithm can be implemented in real-time monitoring due to its non-requirement of different operating points or input excitation. The accuracy and performances of the algorithm was tested with practical synchrophasor measurements in real-time digital simulator (RTDS) as well as a hardware experimental setup.
D. R. Gurusinghe, A. D. Rajapakse, D. Ouellette, R. Kuffel, Presented at PACWorld 2015, Glasgow, Scotland, July 2015, Paper No. WEM03
KEYWORDS: Nonlinear least squares, phasor measurement unit (PMU), real-time digital simulator (RTDS), real-time monitoring, series compensated transmission line