5 papers
Calculating Domain of Attraction Boundary of Power Systems Based on the Gentlest Ascent Dynamics
Sixu Wu, Chenmin Zhang, Aiqing Zhu +3
The power system, a fundamental public utility, is increasingly important due to growing global electricity demand. Recent large-scale blackouts (e.g., Iberian Peninsula, UK) have…
Port-Hamiltonian Control and Structure-Preserving Algorithm for Grid-Forming SVGs
Jiaxin Qian, Feng Ji, Sixu Wu +2
This paper presents a port-Hamiltonian (PH) modeling, control, and structure-preserving simulation framework for grid-forming static var generators (SVGs). A PH model is establishe…
Effective Numerical Simulation of Fault Transient System
Sixu Wu, Feng Ji, Lu Gao +3
Power systems, including synchronous generator systems, are typical systems that strive for stable operation. In this article, we numerically study the fault transient process of a…
Fractional Langevin equation far from equilibrium: Riemann-Liouville fractional Brownian motion, spurious nonergodicity and aging
Qing Wei, Wei Wang, Yifa Tang +2
We consider the fractional Langevin equation far from equilibrium (FLEFE) to describe stochastic dynamics which do not obey the fluctuation-dissipation theorem, unlike the conventi…
The Unisolvence of Lagrange Interpolation with Symmetric Interpolation Space and Nodes in High Dimension
Yulin Xie, Yifa Tang
High-dimensional Lagrange interpolation plays a pivotal role in finite element methods, where ensuring the unisolvence and symmetry of its interpolation space and nodes set is cruc…