A fast and robust state estimator based on exponential function for power systems

T Chen, H Ren, EYS Foo, L Sun… - IEEE Sensors …, 2022 - ieeexplore.ieee.org
In realistic power system state estimation, the distribution of measurement noise is usually
assumed to be Gaussian while many researcher have verified that it can be non-Gaussian …

A robust dynamic state estimation method for power systems using exponential absolute value-based estimator

T Chen, H Ren, P Li… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
Even though the noise model applied in power system dynamic state estimation (DSE) is
usually assumed to be Gaussian, this is not the case due to the unknown system inputs …

Variance analysis of robust state estimation in power system using influence function

WK Ho, T Chen, KV Ling, L Sun - International Journal of Electrical Power & …, 2017 - Elsevier
An analytical equation is derived using influence function approximation to calculate the
variance of the state estimate for traditional robust state estimators such as the Quadratic …

[HTML][HTML] A new robust dynamic state estimation approach for power systems with non-Gaussian noise

T Chen, F Liu, H Luo, EYS Foo, L Sun, Y Sun… - International Journal of …, 2024 - Elsevier
The Gaussian noise distribution is typically used in dynamic state estimation (DSE) but it is
not always true in practice because of abnormal system inputs, impulsive noise and …

A two-stage robust power system state estimation method with unknown measurement noise

J Zhao, G Zhang, M La Scala - 2016 IEEE Power and Energy …, 2016 - ieeexplore.ieee.org
In practical applications like power system, the distribution of the measurement noise is
unknown or frequently deviates from the assumed Gaussian model, often being …

Robust state estimation method based on maximum exponential square

W Wu, Y Guo, B Zhang, A Bose, S Hongbin - IET generation, transmission & …, 2011 - IET
State estimation is a fundamental function of energy management system (EMS) and has
been practically used for many years. However, traditional weighted least square (WLS) …

Robust state estimator based on maximum normal measurement rate

G He, S Dong, J Qi, Y Wang - IEEE Transactions on Power …, 2011 - ieeexplore.ieee.org
In this paper, the concept of normal measurement rate (NMR) is defined based on the theory
of uncertainty in measurement and a robust state estimator named maximum normal …

Enhanced maximum exponential square state estimator based on simulation-hyperparameter optimization

X Wang, Y Liu, Z Li, S Sun - IEEE Transactions on Power …, 2023 - ieeexplore.ieee.org
The maximum exponential square (MES) provides an effective method for robust state
estimation. However, its estimation effect is greatly influenced by the window width. This …

An improved algorithm for state estimator based on maximum normal measurement rate

B Wang, G He, S Dong - IEEE Transactions on Power Systems, 2013 - ieeexplore.ieee.org
Previous work has shown that robust state estimator based on maximum normal
measurement rate is accurate and reliable. However, in the existing algorithm, the optimal …

PMU based robust dynamic state estimation method for power systems

J Zhao, G Zhang, M La Scala - 2015 IEEE Power & Energy …, 2015 - ieeexplore.ieee.org
An accurate and dynamically robust state estimator is indispensable for the efficient and
reliable operation of a power system. In this paper, a state estimation method based on …