Low Voltage Ride Through (LVRT) Constrained Transient Stability Assessment Using Lyapunov Functions Family Method
Abstract
Growing penetration of renewable generation in power systems brings more challenges in transient stability assessment using direct methods. One of the reasons is the inability to assess the risk of instability brought by tripping of a large amount of RGs due to violation of their ride through curves. In this paper, a scalable approach is proposed based on the Lyapunov functions family to estimate the stability region under ride through constraints. An inner polytopic approximation to the feasibility region is proposed to convexify the overall problem. The acquired constrained stability region estimate helps capture trajectories that trigger undesirable tripping of renewable generation. A 2-machine system is used to visualize its effectiveness.
Cite
@article{arxiv.2002.01072,
title = {Low Voltage Ride Through (LVRT) Constrained Transient Stability Assessment Using Lyapunov Functions Family Method},
author = {Chen Wang and Chetan Mishra and Virgilio A. Centeno},
journal= {arXiv preprint arXiv:2002.01072},
year = {2020}
}
Comments
Accepted to be published in the Proceedings of the 2020 IEEE PES General Meeting, August 2-6 2020, Montreal, Quebec, Canada