TY - GEN
T1 - Identification of short transmission-line parameters from synchrophasor measurements
AU - Shi, Di
AU - Tylavsky, Daniel
AU - Logic, Naim
AU - Koellner, Kristian M.
PY - 2008/12/1
Y1 - 2008/12/1
N2 - Accurate knowledge of transmission line impedance parameters helps to improve accuracy in relay settings, postevent fault location and transmission power flow modeling. Four methods are presented in this paper to identify transmission line impedance parameters from synchronized measurements for short transmission lines. Estimates of parameters for short transmission lines is more challenging than for long transmission lines since measurement noise often causes large errors in the estimates. The effectiveness of these methods is verified through simulations. These simulations incorporate two types of measurement errors: biased and non-biased noise. The different effects of bias errors and random noise on the accuracy of the calculated impedance parameters are quantified. Last, some complicating factors and challenges inherent in real world measurements are discussed.
AB - Accurate knowledge of transmission line impedance parameters helps to improve accuracy in relay settings, postevent fault location and transmission power flow modeling. Four methods are presented in this paper to identify transmission line impedance parameters from synchronized measurements for short transmission lines. Estimates of parameters for short transmission lines is more challenging than for long transmission lines since measurement noise often causes large errors in the estimates. The effectiveness of these methods is verified through simulations. These simulations incorporate two types of measurement errors: biased and non-biased noise. The different effects of bias errors and random noise on the accuracy of the calculated impedance parameters are quantified. Last, some complicating factors and challenges inherent in real world measurements are discussed.
KW - ATP
KW - Phasor measurement unit (PMU)
KW - Synchrophasor
KW - Transmission line impedance parameters
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U2 - 10.1109/NAPS.2008.5307354
DO - 10.1109/NAPS.2008.5307354
M3 - Conference contribution
AN - SCOPUS:73849121726
SN - 9781424442836
T3 - 40th North American Power Symposium, NAPS2008
BT - 40th North American Power Symposium, NAPS2008
T2 - 40th North American Power Symposium, NAPS2008
Y2 - 28 September 2009 through 30 September 2009
ER -