A distributed maximum-likelihood-based state estimation approach for power systems

T Chen, Y Cao, X Chen, L Sun, J Zhang… - IEEE Transactions …, 2020 - ieeexplore.ieee.org
The distribution of measurement noise is commonly considered as an assumed Gaussian
model in power systems, but this assumption is not always true in reality. This article …

A Distributed Robust Power System State Estimation Approach Using -Distribution Noise Model

T Chen, Y Cao, L Sun, X Qing, J Zhang - IEEE Systems Journal, 2020 - ieeexplore.ieee.org
In practical power system applications, the distribution of the measurement noise is
sometimes unknown and deviates from the assumed Gaussian noise model due to …

Distributed state estimation using a modified partitioned moving horizon strategy for power systems

T Chen, YSE Foo, KV Ling, X Chen - Sensors, 2017 - mdpi.com
In this paper, a distributed state estimation method based on moving horizon estimation
(MHE) is proposed for the large-scale power system state estimation. The proposed method …

A distributed multi-area power system state estimation method based on generalized loss function

T Chen, F Liu, P Li, L Sun… - … Science and Technology, 2023 - iopscience.iop.org
For power system state estimation, the measurement noise is usually assumed to follow the
Gaussian distribution, and the widely used estimator is the weighted least squares (WLS) …

A distributed robust system-wide state estimation method for power systems based on maximum correntropy

T Chen, H Ren, G Chen, HB Gooi… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
The distribution of measurement noise applied in practical power system state estimation
(PSSE) can deviate from the assumed Gaussian model, and the performance of an estimator …

Hybridization of WLS and LMR: a Robust Solution for Power System State Estimation

MS Shahriar, IO Habiballah - 2022 IEEE Sustainable Power …, 2022 - ieeexplore.ieee.org
Ensuring accurate estimation of the power system states (bus-voltage's magnitude and
angle) is a prime requirement for its protection, monitoring and controlling. Meters might …

Power system state estimation: Undetectable bad data

RAS Benedito, LFC Alberto, NG Bretas… - … on Electrical Energy …, 2014 - Wiley Online Library
This paper proposes an index, called Undetectability Index (UI), to classify the
measurements according to their characteristics of not reflecting their errors into the …

Decentralized multi-area state estimation with hybrid measurements

X Fan, D Duan - 2017 IEEE power & energy society general …, 2017 - ieeexplore.ieee.org
Power system state estimation (SE) is one of the most fundamental applications at the
control center, since it helps the system operator to monitor, control and optimize the …

A Hybrid Power System State Estimator Under Limited PMU Availability

O Darmis, GN Korres - IEEE Transactions on Power Systems, 2024 - ieeexplore.ieee.org
This paper proposes an equality-constrained hybrid state estimation algorithm that
processes data from the supervisory control and data acquisition (SCADA) and wide area …

Probabilistic assessment of state estimation capabilities for grid observation

AA Augusto, MB Do Coutto Filho… - IET Generation …, 2016 - Wiley Online Library
State estimation (SE) has been considered the fulcrum of advanced computer‐aided tools
used to monitor, control, and optimise the performance of power grids. It is destined for the …