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Dynamic State Estimation for Multi-Machine Power System by Unscented Kalman Filter with Enhanced Numerical Stability
Junjian Qi, Kai Sun, Jianhui Wang +1
In this paper, in order to enhance the numerical stability of the unscented Kalman filter (UKF) used for power system dynamic state estimation, a new UKF with guaranteed positive s…
Decentralized Voltage and Power Regulation Control of Excitation and Governor System with Global Asymptotic Stability
Hui Liu, Junjian Qi, Jianhui Wang +1
The Global Asymptotic Stability (GAS), Voltage Regulation (VR), and Power Regulation (PR) of the excitation and governor control system are of critical importance for power system…
Dynamic State Estimation under Cyber Attacks: A Comparative Study of Kalman Filters and Observers
Ahmad F. Taha, Junjian Qi, Jianhui Wang +1
Utilizing highly synchronized measurements from synchrophasors, dynamic state estimation (DSE) can be applied for real-time monitoring of smart grids. Concurrent DSE studies for po…
Risk Mitigation for Dynamic State Estimation Against Cyber Attacks and Unknown Inputs
Ahmad F. Taha, Junjian Qi, Jianhui Wang +1
Phasor measurement units (PMUs) can be effectively utilized for the monitoring and control of the power grid. As the cyber-world becomes increasingly embedded into power grids, the…