Results 31 to 40 of about 81,542 (163)

Impact of renewable energy penetration rate on power system transient voltage stability

Energy Reports, 2022
Transient voltage stability of power system with high penetration of renewable energy faces challenges. This paper proposes a method for quantitatively evaluating the impact of renewable energy penetration rate on transient voltage stability.
Shuanbao Niu, Zhe Zhang, Xianbo Ke, Gang Zhang, Chao Huo, Boyu Qin   +5 more
doaj   +1 more source

Assessing River Embankment Stability Under Transient Seepage Conditions

Procedia Engineering, 2016
AbstractThe evaluation of riverbank stability is a fundamental problem in flood risk management, representing a critical task for engineering practice. Soil heterogeneity together with initial and boundary conditions are among the crucial issues that should be considered to obtain an accurate solution of the problem.
GOTTARDI, GUIDO, GRAGNANO, CARMINE GERARDO, ROCCHI, IRENE, BITTELLI, MARCO   +3 more
openaire   +2 more sources

A risk assessment method of multi-form transient voltage stabilities for high-proportion renewable energy sending-end power grids

International Journal of Electrical Power & Energy Systems
For high-proportion renewable energy sending-end power grids, various transient voltage instabilities including transient overvoltage, transient low voltage, delayed voltage recovery, repeated low voltage ride through, and sustained low voltage, are ...
Lei Wu, Pupu Chao, Weixing Li, Zhimin Li
doaj   +1 more source

Transient stability risk assessment of power systems incorporating wind farms

Journal of Modern Power Systems and Clean Energy, 2013
Large-scale wind farm integration has brought several aspects of challenges to the transient stability of power systems. This paper focuses on the research of the transient stability of power systems incorporating with wind farms by utilizing risk ...
Lu Miao, Jiakun Fang, Jinyu Wen, Weihua Luo   +3 more
doaj   +1 more source

Power System Transient Stability Assessment Using Convolutional Neural Network and Saliency Map

Energies, 2023
This study proposes a model for transient stability assessment, which is a convolutional neural network model combined with a saliency map (S–CNN model).
Heungseok Lee, Jongju Kim, June Ho Park, Sang-Hwa Chung   +3 more
doaj   +1 more source

A multi-task transient stability assessment method adapted to topology changes using multi-graph sample and aggregate-attention network

Frontiers in Energy Research
Transient stability assessment (TSA) plays a pivotal role in guiding power grid risk control strategies. However, it faces challenges when dealing with complex multi-graph inputs generated by pre-fault, fault occurrence, and post-fault states. Meanwhile,
Lingxiang Huang, Kun Dong, Jianfeng Zhao, Kangli Liu, Cheng Jin, Xirui Guo   +5 more
doaj   +1 more source

Time-Adaptive Transient Stability Assessment Based on the Gating Spatiotemporal Graph Neural Network and Gated Recurrent Unit

Frontiers in Energy Research, 2022
With the continuous expansion of the UHV AC/DC interconnection scale, online, high-precision, and fast transient stability assessment (TSA) is very important for the safe operation of power grids.
Jianfeng Liu, Chenxi Yao, Lele Chen
doaj   +1 more source

Transient Energy of an Individual Machine PART I: Stability Characterization

IEEE Access, 2021
The individual-machine-equal-area-criterion method already shows potential in the transient stability assessment of multimachine systems. This two-paper series systematically analyzes the transient characteristics of the system trajectory from a genuine ...
Songyan Wang, Jilai Yu, Aoife M. Foley, Wei Zhang   +3 more
doaj   +1 more source

Transient voltage stability assessment and margin calculation based on disturbance signal energy feature learning

Frontiers in Energy Research
With the increasing variation of the network topology and the high complexity of the processing measurement data, the transient voltage stability assessment of the new power system is facing significant challenges in low accuracy and high time costs.
Yan Chen, Zirui Huang, Zhaobin Du, Guoduan Zhong, Jiawei Gao, Hongyue Zhen   +5 more
doaj   +1 more source

Artificial Intelligence Techniques for Power System Transient Stability Assessment

Energies, 2022
The high penetration of renewable energy sources, coupled with decommissioning of conventional power plants, leads to the reduction of power system inertia. This has negative repercussions on the transient stability of power systems.
Petar Sarajcev, Antonijo Kunac, Goran Petrovic, Marin Despalatovic   +3 more
doaj   +1 more source