Results 1 to 10 of about 2,407,984 (289)

Power System Controlled Islanding Using Directed Motif‐Based Spectral Clustering: A Novel Complex Network Perspective

IET Smart Grid
Intentional Controlled Islanding (ICI) is a wide‐area self‐healing strategy to prevent power system blackouts. Recent studies integrate ICI within a complex network framework using community detection techniques, thus addressing the complex nature of ...
Mohsen Safarzadeh, Gholam Reza Yousefi, Mohammad Amin Latify, Zeinab Maleki   +3 more
doaj   +1 more source

Dynamic reactive power reserve assessment method for hybrid AC/DC networks based on a reduced equivalent model of an LCC‐HVDC converter process

IET Renewable Power Generation
LCC‐HVDC technology has been widely applied. Commutation failure is a common disturbance in converter stations. In the absence of an adequate and rapid dynamic reactive power supply, the system is prone to trigger DC blocking.
Sidun Fang, Yuli Lei, Tao Niu, Guanhong Chen, Lin Xue, Wenguo Wu, Nan Feng, Yuyao Feng   +7 more
doaj   +1 more source

Determining the Load Inertia Contribution from Different Power Consumer Groups

Energies, 2020
Power system inertia is a vital part of power system stability. The inertia response within the first seconds after a power imbalance reduces the velocity of which the grid frequency changes.
Henning Thiesen, Clemens Jauch
doaj   +1 more source

Investigating early warning signs of oscillatory instability in simulated phasor measurements

, 2013
This paper shows that the variance of load bus voltage magnitude in a small power system test case increases monotonically as the system approaches a Hopf bifurcation. This property can potentially be used as a method for monitoring oscillatory stability
Ghanavati, Goodarz, Hines, Paul D. H., Lakoba, Taras I.   +2 more
core   +1 more source

Small‐Signal Synchronization Stability Enhancement of GFL‐Based Renewable Energy Generation Using the Koopman Operator

IET Renewable Power Generation
Recent reports have highlighted small‐signal synchronous instability issues in grid‐following converter‐based renewable energy generation systems connected to weak power grids.
Le Zheng, Jiajie Zheng, Xin Liu, Gengyin Li, Yanhui Xu   +4 more
doaj   +1 more source

Interval analysis of the small‐signal stability of grid‐connected voltage‐source converter system considering multiparameter uncertainty

IET Energy Systems Integration
Grid‐connected voltage source converters (VSCs) have been broadly applied in modern power system. However, instability issues may be triggered by the integration of grid‐connected VSCs, jeopardising the operation of the power grid. Conventional stability
Fuxin Ouyang, Zhenguo Shao, Changxu Jiang, Yan Zhang, Feixiong Chen   +4 more
doaj   +1 more source

A STATIC AND DYNAMIC TECHNIQUE CONTINGENCY RANKING ANALYSIS IN VOLTAGE STABILITY ASSESSMENT [PDF]

, 2013
The objective of the research is to compare between technique for determine the weak bus of the power system using static and dynamic contingency ranking analysis. Identification of the weak bus is very important for providing
Nizam , Muhammad
core  

Koopman model predictive control based load modulation for primary frequency regulation

IET Generation, Transmission & Distribution
Conventional power systems function under the assumption that loads are uncontrollable, and that the generation control is the primary means of preserving system voltage, frequency, and stability.
Ahmed Husham, Innocent Kamwa, Hussein Suprême   +2 more
doaj   +1 more source

An analytical approach for power system frequency stability evaluation

IET Generation, Transmission & Distribution
Recent years have seen high penetration of renewable energies, which have significantly reduced the inertia of bulk power systems. As a result, the frequency behaviour of power systems is becoming more complex.
Zhenyao Li, Jing Li, Deqiang Gan
doaj   +1 more source

Synchronization and Transient Stability in Power Networks and Non-Uniform Kuramoto Oscillators [PDF]

, 2011
Motivated by recent interest for multi-agent systems and smart power grid architectures, we discuss the synchronization problem for the network-reduced model of a power system with non-trivial transfer conductances.
Bullo, Francesco, Dorfler, Florian
core