Adaptive Fixed-Time Stability Control and Parameters Identification for Chaotic Oscillation in Second Order Power System

Abstract

In this paper, the novel adaptive fixed-time stability control for chaotic oscillation in second order power system is proposed. The settling time of fixed-time control can be adjusted to the desired value without knowing the initial condition, while the finite time control depends on that. Then, we develop a parameter identification method of fixed-time depending on synchronous observer with adaptive law of parameters, which can guarantee these uncertain parameters to be identified effectively. Finally, some numerical results demonstrate the effectiveness and practicability of the scheme.

A Robust Online Identification of Sustained Low Frequency Oscillation in Steady‐State Power Systems

“…Low-frequency oscillations (LFOs) in power system are usually in range of 0.1-2.5Hz and may result in unstable and unsecure operation, so its real-time identification is essential [1][2][3]. Different methods have been proposed for this goal.…”