A survey of power system state estimation using multiple data sources: PMUs, SCADA, AMI, and beyond

G Cheng, Y Lin, A Abur… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
State estimation (SE) is indispensable for the situational awareness of power systems.
Conventional SE is fed by measurements collected from the supervisory control and data …

The challenges of low voltage distribution system state estimation—an application oriented review

I Táczi, B Sinkovics, I Vokony, B Hartmann - Energies, 2021 - mdpi.com
Global trends such as the growing share of renewable energy sources in the generation mix,
electrification, e-mobility, and the increasing number of prosumers reshape the electricity …

Application of event-triggered cubature Kalman filter for remote nonlinear state estimation in wireless sensor network

S Li, Z Li, J Li, T Fernando, HHC Iu… - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
This article proposes a novel filter, which is based on the event-triggered schedule and the
cubature Kalman filter (CKF), to perform the nonlinear remote state estimation in the wireless …

The branch-and-bound algorithm in optimizing mathematical programming models to achieve power grid observability

NP Theodorakatos, R Babu, AP Moschoudis - Axioms, 2023 - mdpi.com
Phasor Measurement Units (PMUs) are the backbone of smart grids that are able to
measure power system observability in real-time. The deployment of synchronized sensors …

A survey on hybrid scada/wams state estimation methodologies in electric power transmission systems

O Darmis, G Korres - Energies, 2023 - mdpi.com
State estimation (SE) is an essential tool of energy management systems (EMS), providing
power system operators with an overall grasp of the actual power system operating …

Observability analysis of a power system stochastic dynamic model using a derivative-free approach

Z Zheng, Y Xu, L Mili, Z Liu, M Korkali… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
Serving as a prerequisite to power system dynamic state estimation, the observability
analysis of a power system dynamic model has recently attracted the attention of many …

Towards smart energy grids: A box-constrained nonlinear underdetermined model for power system observability using recursive quadratic programming

NP Theodorakatos, M Lytras, R Babu - Energies, 2020 - mdpi.com
This paper introduces an underdetermined nonlinear programming model where the
equality constraints are fewer than the design variables defined on a compact set for the …

Hd-Deep-EM: Deep Expectation Maximization for Dynamic Hidden State Recovery Using Heterogeneous Data

Z Ma, H Li, Y Weng, E Blasch… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
Uncertain power generations and loads are continually integrated into the power system,
causing high risks of dynamic events. To better monitor systems, advanced meters like …

Deep Neural Network-Based State Estimator for Transmission System Considering Practical Implementation Challenges

AC Varghese, H Shah, B Azimian, A Pal… - Journal of Modern …, 2024 - ieeexplore.ieee.org
As the phasor measurement unit (PMU) placement problem involves a cost-benefit trade-off,
more PMUs get placed on the higher voltage buses. However, this causes many of the lower …

A real-time recursion correction hybrid linear state estimator using stream processing

K Sun, M Huang, Z Wei, J Zhao… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
This study intends to improve the accuracy, efficiency, and timeliness of state estimation (SE)
for large-scale electric power systems by presenting a recursion correction hybrid linear …