Fast Critical Clearing Time Calculation for Power Systems with Synchronous and Asynchronous Generation

2025-03-15 · Xuezao Wang, Yijun Xu, Wei Gu, Kai Liu, Shuai Lu, Mert Korkali, Lamine Mili

The increasing penetration of renewables is replacing traditional synchronous generation in modern power systems with low-inertia asynchronous converter-interfaced generators (CIGs). This penetration threatens the dynamic stability of the modern power system. To assess the latter, we resort to the critical clearing time (CCT) as a stability index, which is typically computed through a large number of time-domain simulations. This is especially true for CIG-embedded power systems, where the complexity of the model is further increased. To alleviate the computing burden, we developed a trajectory sensitivity-based method for assessing the CCT in power systems with synchronous and asynchronous generators. This allows us to obtain the CCT cost-effectively. The simulation results reveal the excellent performance of the proposed method.

📄 PDF Abstract BibTeX arXiv:2503.12132

Code (0)

등록된 구현이 없습니다.

Methods 이 논문이 사용한 방법론

Attention 설명 없음

Linear Layer A Linear Layer is a projection $\mathbf{XW + b}$.

Position-Wise Feed-Forward Layer 설명 없음

Layer Normalization Unlike batch normalization, Layer Normalization directly estimates the normalization statistics from the summed inputs…

BPE Byte Pair Encoding, or BPE, is a subword segmentation algorithm that encodes rare and unknown words as sequences of subword units. The intuition is that various word…

Softmax The Softmax output function transforms a previous layer's output into a vector of probabilities. It is commonly used for multiclass classification. Given an input vector $x$…

Label Smoothing Label Smoothing is a regularization technique that introduces noise for the labels. This accounts for the fact that datasets may have mistakes in them, so maximizing the…

Multi-Head Attention 설명 없음

Critical Clearing Time Estimates of Power Grid Faults via a Set-Based Method

2022-11-28 · Willem Esterhuizen, Gyula Molnár, Tim Aschenbruck, Franz Rußwurm 외

This paper is concerned with estimating critical clearing times in the transient stability problem of power grids without extensive time-domain simulations. We consider a highdimensional post-fault system (the grid after…

Event-Structured Physics-Informed Neural Networks for Differentiable Critical Clearing Boundaries

2026-07-30 · Baoli Hao, Chenxi Hu, Ming Zhong, Ren Wang arxiv

Transient-stability assessment determines whether a power system can recover after a disturbance and is therefore essential to preventing generator trips and cascading outages. A key metric is the critical clearing time …

Computational Efficiency

Approximating Energy Market Clearing and Bidding With Model-Based Reinforcement Learning

2023-03-03 · Thomas Wolgast, Astrid Nieße

Energy market rules should incentivize market participants to behave in a market and grid conform way. However, they can also provide incentives for undesired and unexpected strategies if the market design is flawed. Mul…

Model-based Reinforcement Learning Multi-agent Reinforcement Learning reinforcement-learning Reinforcement Learning+1

Critical Clearing Time Sensitivity for Differential-Algebraic Power System Model

2020-07-17

Standard power systems are modeled using differential-algebraic equations (DAE). Following a transient event, voltage collapse can occur as a bifurcation of the transient load flow solutions which is marked by the system…

Sensitivity

Analyzing the Impact of Strategic Bidding on the Reserve Capacity via a Bi-Level Model

2025-06-25 · Yun Xu, Yunxiao Bai, Yunyong Zhang, Peng Wang 외

The growing integration of renewable energy sources necessitates adequate reserve capacity to maintain power balance. However, in market clearing, power companies with flexible resources may submit strategic bids to maxi…