TY - JOUR
T1 - Fast decoupled state estimation for distribution networks considering branch ampere measurements
AU - Ju, Yuntao
AU - Wu, Wenchuan
AU - Ge, Fuchao
AU - Ma, Kang
AU - Lin, Yi
AU - Ye, Lin
PY - 2018/11/1
Y1 - 2018/11/1
N2 - Fast decoupled state estimation (FDSE) is proposed for distribution networks, with fast convergence and high efficiency. Conventionally, branch current magnitude measurements cannot be incorporated into FDSE models; however, in this paper, branch ampere measurements are reformulated as active and reactive branch loss measurements and directly formulated in the proposed FDSE model. Using the complex per unit normalization technique and special chosen state variables, the performance of this FDSE can be guaranteed when it is applied to distribution networks. Numerical tests on seven different distribution networks show that this method outperforms Newton type solutions and is a promising method for practical application.
AB - Fast decoupled state estimation (FDSE) is proposed for distribution networks, with fast convergence and high efficiency. Conventionally, branch current magnitude measurements cannot be incorporated into FDSE models; however, in this paper, branch ampere measurements are reformulated as active and reactive branch loss measurements and directly formulated in the proposed FDSE model. Using the complex per unit normalization technique and special chosen state variables, the performance of this FDSE can be guaranteed when it is applied to distribution networks. Numerical tests on seven different distribution networks show that this method outperforms Newton type solutions and is a promising method for practical application.
UR - https://www.scopus.com/pages/publications/85055438224
U2 - 10.1109/TSG.2017.2709463
DO - 10.1109/TSG.2017.2709463
M3 - Article
SN - 1949-3053
VL - 9
SP - 6338
EP - 6347
JO - IEEE Transactions on Smart Grids
JF - IEEE Transactions on Smart Grids
IS - 6
ER -