Journal of System Simulation
Abstract
A new state estimation algorithm is proposed to improve the accuracy to obtain the optimal state estimation of distribution network against FDI attack. In the case of phasor measurement units being attacked and the measurement results being alteredthe optimal Kalman estimate can be decomposed into a weighted sum of local state estimates. Focusing on the insecurity of the weighted sum methoda convex optimization based on local estimation is proposed to replace the method and combine the local estimation into a secure state estimation. The simulation results show that the proposed estimator is consistent with the Kalman estimator when all the PMU measuring devices operate well. When the PMU device is attacked and the measurement is abnormal a sufficient condition is provided under which the security state estimator is stable.
Recommended Citation
Dong, Ze; Jiang, Wei; Wang, Xiaoyan; and Liu, Lei
(2023)
"Application of Digital Twin in Digital Transformation of Thermal Power Units,"
Journal of System Simulation: Vol. 35:
Iss.
6, Article 2.
DOI: 10.16182/j.issn1004731x.joss.22-0229
Available at:
https://dc-china-simulation.researchcommons.org/journal/vol35/iss6/2
First Page
1144
Revised Date
2022-04-18
DOI Link
http://dx.doi.org/10.16182/j.issn1004731x.joss.22-0229
Last Page
1156
CLC
TP391.9
Recommended Citation
Ze Dong, Wei Jiang, Xiaoyan Wang, Lei Liu. Application of Digital Twin in Digital Transformation of Thermal Power Units[J]. Journal of System Simulation, 2023, 35(6): 1144-1156.
DOI
10.16182/j.issn1004731x.joss.22-0229
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