نتایج جستجو برای: electromechanical oscillations

تعداد نتایج: 54851  

2014
R. Ajabi-Farshbaf

Power system stabilizers (PSSs) must be capable of providing appropriate stabilization signals over a broad range of operating conditions and disturbances. The main idea of this paper is changing a classic PSS (CPSS) to an adaptive PSS using genetic algorithm. This new genetic algorithm based on adaptive PSS (GAPSS) improves power system damping, considerably. The controller design issue is for...

Journal: :Journal of modern power systems and clean energy 2023

This study presents the assumptions and strategies for practical implementation of dynamic mode decomposition approach in wide-area monitoring system Italian transmission operator, Terna. The procedure setup aims to detect poorly damped interarea oscillations power systems. Dynamic is a data-driven technique that has gained increasing attention different fields; proposed can both characterize o...

Journal: :Journal of theoretical biology 2013
Philipp Thomas Arthur V Straube Jens Timmer Christian Fleck Ramon Grima

A class of theoretical models seeks to explain rhythmic single cell data by postulating that they are generated by intrinsic noise in biochemical systems whose deterministic models exhibit only damped oscillations. The main features of such noise-induced oscillations are quantified by the power spectrum which measures the dependence of the oscillatory signal's power with frequency. In this pape...

2006
Y Du M A Lion

In the automotive industry, electrical and electromechanical components and systems become more and more important. In comparison with commonly used mechanical and hydraulic systems they offer a large number of advantages with respect to efficiency and flexibility, for example. Therefore, conventional hydraulic steering systems are being replaced more and more with electromechanical ones. Curre...

2007
D. Menniti

In this paper the authors propose a Genetic Algorithm (GA) to determine the operating point of a Unified Power Flow Controller (UPFC) for simultaneous solving of static security and dynamic stability problems. In particular, the interest is focused on damping of the electromechanical oscillations. The proposed algorithm is based on genetic mutation operator and it acts directly on the control p...

2011
I. Mahboob E. Flurin K. Nishiguchi A. Fujiwara H. Yamaguchi

In conventional computers, wiring between transistors is required to enable the execution of Boolean logic functions. This has resulted in processors in which billions of transistors are physically interconnected, which limits integration densities, gives rise to huge power consumption and restricts processing speeds. A method to eliminate wiring amongst transistors by condensing Boolean logic ...

2014
Naz Niamul Islam M. A. Hannan Hussain Shareef Azah Mohamed M. A. Salam

Power oscillation damping controller is designed in linearized model with heuristic optimization techniques. Selection of the objective function is very crucial for damping controller design by optimization algorithms. In this research, comparative analysis has been carried out to evaluate the effectiveness of popular objective functions used in power system oscillation damping. Two-stage lead-...

Journal: :Bioinspiration & biomimetics 2017
Stefano Buoso Benjamin T Dickinson Rafael Palacios

This paper presents a numerical investigation on the closed-loop performance of a two-dimensional actuated membrane wing with fixed supports. The proposed concept mimics aerodynamic sensing and actuation mechanisms found in bat wings to achieve robust outdoor flight: firstly, variable membrane tension, which is obtained in bats through skeleton articulation, is introduced through a dielectric-e...

Journal: :Nature communications 2012
M T Allen J Martin A Yacoby

Quantum-confined devices that manipulate single electrons in graphene are emerging as attractive candidates for nanoelectronics applications. Previous experiments have employed etched graphene nanostructures, but edge and substrate disorder severely limit device functionality. Here we present a technique that builds quantum-confined structures in suspended bilayer graphene with tunnel barriers ...

2007
Mark Ndubuka NWOHU Mark N. NWOHU

The capability of regulating power flow in Nigerian Grid System using UPFC is the main focus in this paper. Consequently, three control methods, namely, voltage control through shunt compensation, real power flow control through quadrature voltage injection and reactive power flow control through in-phase voltage injection for the UPFC were examined in order to improve the transient stability o...

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