Results 261 to 270 of about 4,175,588 (290)

A Novel Scenario Reduction Method for Static Voltage Stability

2020 IEEE 4th Conference on Energy Internet and Energy System Integration (EI2), 2020
The scenario-based method has been widely used to model the uncertainty in power systems. To decrease the complexity and computational burden for the evaluation and solution of the stochastic static voltage stability problem due to the integration of renewable energy sources, we propose a novel scenario reduction method in this paper. Compared with the
Guobing Gao, Lei Wang, Yongning Chi, Xingdong Xu   +3 more
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Series compensation for static and dynamic voltage stability enhancement

2009 Innovative Technologies in Intelligent Systems and Industrial Applications, 2009
The continuous change in power demand and supply altered the power flow patterns in transmission networks which raise serious challenge in operating the power system in secure and reliable manner. To cope up with this problem Flexible AC Transmission systems (FACTS) is used. It plays a very important role in improving the power system static as well as
M. Kowsalya, Kanika Garg, Neha Gupta
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Uniqueness of static voltage stability analysis in power systems

2001 Power Engineering Society Summer Meeting. Conference Proceedings (Cat. No.01CH37262), 2001
Diverse theories have been established in voltage stability analysis since various aspects have been observed during voltage collapse phenomena. Through rigorous mathematical investigation, this paper shows that all the major methods used in static voltage stability analysis, i.e.
null Young-Hyun Moon, null Heon-Su Ryu, null Jong-Gi Lee, null Baik Kim   +3 more
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Robustness evaluation of static voltage stability in power systems

IEEJ Transactions on Electrical and Electronic Engineering, 2007
AbstractSeveral upper and/or lower bounds to nodal voltage variations are derived in this paper, by exploiting what we call the Hermitian power equations of power systems. Bound inequalities are established for nodal voltage variations in terms of singular values of structural characteristics of power systems, which are running at steady‐state ...
Zhou, Jun, Ohsawa, Yasuharu
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Neural networks and static voltage stability in power systems

2008 IEEE International Conference on Industrial Technology, 2008
A power system is an interconnected network of mainly generation, transmission/distribution, and consumption of electrical energy. The steady-state operation of maintaining voltage stability is done by switching various controllers scattered all over the network.
openaire   +1 more source

Static and dynamic stabilities of a microbeam actuated by a piezoelectric voltage

Microsystem Technologies, 2009
In this paper, flutter and divergence instabilities of a cantilever, a clamped–clamped, and a cantilever with intermediate simply-support microbeam sandwiched by piezoelectric layers have been studied. By presenting a mathematical formulation and numerical solution, critical piezoelectric force for avoiding of the instability in a cantilever microbeam ...
Ghader Rezazadeh, Mohammad Fathalilou, Rasul Shabani   +2 more
openaire   +1 more source

Static Voltage Stability Analysis Based on PSS/E

2013
In this paper, the static voltage stability is studied by PSS/E. Firstly, the author gives the mechanism of branch contingency ranking,PV,QV curve in the analysis of voltage stability of PSS/E.PV curve is to find the maximum transfer power limit,while comprehensive sensitivity indicator is used to analyze static voltage stability in the method of QV ...
Xiaoyan Bian, Fangqi Yuan, Yang Fu
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Influence of the modified static load characteristic on the voltage stability

2015
Die steigende Anzahl an dezentraler Stromerzeugung erzwingt die Benutzung von Blindleistung zur lokalen Spannungsregulierung, was wiederum zu einem ungewollten und unkontrollierten Blindleistungsfluss führen kann. Dieser unkontrollierte Blindleistungsfluss hat Auswirkungen auf das überlagerte Hochspannungsnetz und modifiziert das Verhalten des ...
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A robust static voltage stability index for distribution networks

2010
In this paper, a new static voltage stability index is proposed for identifying the line or its corresponding bus on the verge of voltage collapse of distribution networks. The index is developed by using the distribution line receiving end bus voltage formulation, and its adequacy is evaluated on a modern distribution test system which has voltage ...
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Placement of DFIG power plants for Improving Static Voltage Stability

2022 19th International Multi-Conference on Systems, Signals & Devices (SSD), 2022
Ghada Machane, Ahmed Gherbi
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