The stability of power systems has been and continues to be a major concern in the operation of the system. Modern electrical power systems have grown to great complexity due to increased interconnections, the installation of large generation units and high voltage connection lines, etc. Transient stability is the ability of the power system to maintain synchronism when subjected to a severe transient disturbance, such as failure in transmission facilities, sudden loss of generation or loss of a large load. The system response to such disturban ....etc

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MODELING RELAYS FOR POWER SYSTEM
PROTECTION STUDIES

by
SANDRO GIANNY AQUILES PEREZ


ABSTRACT
Numerical relays are the result of the application of microprocessor technology in relay
industry. Numerical relays have the ability to communicate with its peers, are
economical and are easy to operate, adjust and repair. Modeling of digital and
numerical relays is important to adjust and settle protection equipment in electrical
facilities and to train protection personnel. Designing of numerical relays ....etc

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We analyze the feedback loop in Tele-Graffiti, a cameraprojectorbased remote sketching system which we recentlydeveloped. We derive the gain through the feedback loopand the final images that will be viewed by the users of thesystem. We then derive the optimal gain as the gain thatresults in the final viewed images being as close as possibleto the sum of the images actually drawn on the paper. Wealso propose a way of using the projector to compensate forinsufficient ambient light and describe how our analysis isaffected by: (1) automatic gain ....etc

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Presented By
PRANAMITA BASU
AISWARYA HARICHANDAN
National Institute of Technology Rourkela
Under the guidance of PROF. P.C. PANDA

ABSTRACT
The stability of an interconnected power system is its ability to return to normal or stable operation after having been subjected to some form of disturbance. With interconnected systems continually growing in size and extending over vast geographical regions, it is becoming increasingly more difficult to maintain synchronism between various parts of the power system.
....etc

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MATLAB/Simulink-based transient stability
analysis of a multimachine power system



Abstract

Simulink is advanced software by MathWorks Inc., which is increasingly being used as a
basic building block in many areas of research. As such, it also holds great potential in the area of
power system simulation. In this paper, we have taken a multi-machine power system example to
demonstrate the features and scope of a Simulink-based model for transient stability analysis. A selfsufficient
model has been giv ....etc

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Modeling and Control Coordination of
Power Systems with FACTS Devices in
Steady-State Operating Mode


by

Van Liem NGUYEN
This thesis is presented for the degree of Doctor of Philosophy
of The University of Western Australia
Energy Systems Centre
School of Electrical, Electronic and Computer Engineering


ABSTRACT

This thesis is devoted to the development of new models for a recently-implemented
FACTS (flexible alternating current transmission system) device, the unifi ....etc

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Abstract
In this paper steady-state modeling of Static VAR Compensator (SVC) and Thyristor Controlled Series Compensator (TCSC) for power flow studies has been represented and discussed in details. Firing angle model for SVC was proposed to control the voltage at which it is connected. In same manner firing angle model for TCSC is used to control active power flow of the line to which TCSC is installed. The proposed models take firing angle as state variable in power flow formulation. To validate the effectiveness of the proposed models ....etc

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matlab code for transient stability of multimachine power system ....etc

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Blackouts in power grids usually result from cascading faults. The key importance of the electric power grid for society encourages further research into maintaining the reliability of the energy system and developing new methods to manage the risks of cascading blackouts. Appropriate software tools are required to better analyse, understand, and evaluate the consequences of cascading failures. This article presents MATCASC, an open-source MATLAB-based tool for analysing cascading faults in electrical networks. Cascade effects due to line overh ....etc

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Steady-state bumpless transfer under controller uncertainty using the state/output feedback topology
Linear quadratic (LQ) bumpless transfer design gives a very convenient and straightforward computational procedure for the steady-state bumpless transfer operator synthesis. It cannot, however provide convergence of the output of the offline controller to that of the online controller in many industrial applications thereby producing bumps in the plant output in the wake of controller transfer. the applications in question are characteri ....etc

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