TY - GEN
T1 - An Estimation Method of Transmission Line Parameters Based on Measurements of Injection Power and Voltage Phasor in Power Grid
AU - Zhou, Yadong
AU - Hu, Bowen
AU - Wu, Jiang
AU - Xu, Zhanbo
AU - Guan, Xiaohong
AU - Chen, Wei
AU - Liu, Ting
N1 - Publisher Copyright:
© 2021 IEEE.
PY - 2021/8/23
Y1 - 2021/8/23
N2 - Estimation of transmission line parameters is an important problem for state estimation of power grid. In recent years, some studies have shown that the transmission line parameters can be estimated by some specific measurement data of the power grid. However, most of the studies mainly focus on single type of measurement data. In this paper, we propose an estimation method of transmission line parameters based on multi-measurement data of power grid, including measurements of injection power and voltage phasor. And considering the different reliability of the measurements, we make different restrictions on the multi-measurements. In our method, parameters and connection topology of transmission lines are estimated separately, and an ALS optimization model is established to solve the problem. Compared to the previous methods, the objective functions and constraints of our optimization model are improved, with considering different constraints based on phasor measurements, to get better estimation accuracy. The effectiveness and performance of the developed estimation method are demonstrated based on experiments using IEEE 30-bus and 118-bus systems.
AB - Estimation of transmission line parameters is an important problem for state estimation of power grid. In recent years, some studies have shown that the transmission line parameters can be estimated by some specific measurement data of the power grid. However, most of the studies mainly focus on single type of measurement data. In this paper, we propose an estimation method of transmission line parameters based on multi-measurement data of power grid, including measurements of injection power and voltage phasor. And considering the different reliability of the measurements, we make different restrictions on the multi-measurements. In our method, parameters and connection topology of transmission lines are estimated separately, and an ALS optimization model is established to solve the problem. Compared to the previous methods, the objective functions and constraints of our optimization model are improved, with considering different constraints based on phasor measurements, to get better estimation accuracy. The effectiveness and performance of the developed estimation method are demonstrated based on experiments using IEEE 30-bus and 118-bus systems.
UR - https://www.scopus.com/pages/publications/85117033911
U2 - 10.1109/CASE49439.2021.9551501
DO - 10.1109/CASE49439.2021.9551501
M3 - 会议稿件
AN - SCOPUS:85117033911
T3 - IEEE International Conference on Automation Science and Engineering
SP - 202
EP - 207
BT - 2021 IEEE 17th International Conference on Automation Science and Engineering, CASE 2021
PB - IEEE Computer Society
T2 - 17th IEEE International Conference on Automation Science and Engineering, CASE 2021
Y2 - 23 August 2021 through 27 August 2021
ER -