Results 221 to 230 of about 72,767 (263)
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Transient stabilization of power systems with an adaptive control law
Automatica, 1994Abstract Due to a variety of effects, such as lightning, severe storms and equipment failures, the configuration of an electric power system is not constant. Thus, important parameters, such as effective reactances of transmission lines, in an electric power system always contain some uncertainties.
Youyi Wang +3 more
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Transient Stabilization in Systems with Wind Power
2013This chapter analyzes transient stability problems in networks with high wind penetration. Disturbances caused by wind power perturbations and major equipment failures are considered, and their impact on system dynamics is analyzed. Next, the potential of power-electronically switched devices for the stabilization of system dynamics during high energy ...
Milos Cvetković +2 more
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Robust nonlinear control of transient stability of power systems
42nd IEEE International Conference on Decision and Control (IEEE Cat. No.03CH37475), 2004In this paper we present a robust nonlinear excitation controller of synchronous generator connected through one transmission line to an infinite bus (SMIB) to enhance transient stability. Simulation results show that transient stability of a single machine infinite bus power system under a large sudden fault can be improved.
Brahim Behar +2 more
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Power-Electronics-Enabled Transient Stabilization of Power Systems
2013Transient stability of electric energy grids is defined as the ability of the power system to remain in synchronism during large disturbances. If the grid is not equipped with controllers capable of transiently stabilizing system dynamics, large disturbances could cause protection to trigger disconnecting the equipment and leading further to cascading ...
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Improving of Transient Stability of Power Systems Using UPFC
IEEE Transactions on Power Delivery, 2005The objective of this paper is to answer to the following question: How the unified power flow controller (UPFC) parameters should be controlled in order to achieve the maximal desired effect in solving first swing stability problem. This problem appears for bulky power systems with long transmission lines.
Gholipour, Eskandar, Saadate, Shahrokh
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Some aspects of the tunisian power system transient stability
2017 14th International Multi-Conference on Systems, Signals & Devices (SSD), 2017This paper exposes some aspects of the Tunisian power system transient stability, drawn from the operational experience of the network. Different types and criteria of stability are considered: angular stability is studied by determining the fault critical clearing time after short circuit faults.
Adnene Haj Hamida +2 more
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Transient Stability of Dissipative Power Systems
IFAC Proceedings Volumes, 1984Abstract Stability criteria for on-line analysis of transient processes in power systems are discussed. A method to approximate separation manifolds by energy surfaces of corresponding conservative systems is derived by using the theory of differential manifolds in the spirit of Its applications in classical mechanics. Closed form stability criteria,
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Transient Stability of Multimachine Power Systems
International Journal of Electrical Engineering & Education, 1976Transient stability of multimachine power systems is discussed using the concepts of modern control theory e.g. state variables, Lyapunov functions. The points discussed include the mathematical model, dimension of the state space, effect of damping on stability, validity of neglecting transfer conductances, also suggestions for further work in the ...
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Global Transient Stability and Voltage Regulation for Power Systems
IEEE Power Engineering Review, 2001Summary form only given as follows. This paper is concerned with the global control of power systems. It arises from the practical concern that transient stability and voltage regulation are both important properties of power system control, but they are ascribed to different model descriptions and relate to different stages of system operation (i.e ...
Guo, Y, Hill, DJ, Wang, Y
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A Unified Scheme for Power System Transient Stability Simulation and Transient Stability Assessment
2019 IEEE 8th International Conference on Advanced Power System Automation and Protection (APAP), 2019Transient stability assessment (TSA) is critical for power system stability analysis and control. Among all efforts to achieve TSA, the transient stability simulation(TSS) plays a fundamental role. In this paper, a unified scheme is proposed for TSS and TSA of numerous power system transient scenarios. The scheme mainly consists of two parts, which are
Songhao Yang +4 more
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