Line outage security constraints ensure that a proposed generating schedule will not load any line to the point where its removal causes more overloading elsewhere. These increase operating costs by occasionally precluding usage of cheapest generation sources. That is, power networks frequently suffer congestion in this ($N-1$</inline...

For the efficient transmission of power from power plants to consumer loads, the power losses are reduced in modern power system. In order to reduce such losses, a recently evolved FACTS technology is used. In this paper, Thyristor Controlled Series Capacitor (TCSC) is selected to enhance the loadability in the transmission line. To improve the maximum power transfer capability by this device a...

As known, nonlinear loads in power systems originate harmonic distortion and quality issues. Converter-interfaced exhibit a behaviour as well may largely contribute to increase the pollution. The nonlinearities introduced by PLL-synchronization control originate, indeed, coupling mechanism between fundamental frequencies. These effects are not captured traditional Norton/Thevenin equivalent con...

in this paper the effects of non-linearity of suspension on dynamic behavior of a railway wheelset has been studied. this wheelset has four degrees of freedom that with two constraints it has reduced to two degrees of freedom. vermeulen-johnson theory has been used to calculate contact forces between wheel and rail. in this study the creep coefficients have considered constant. any linearizatio...

in this paper, penetration of high velocity impact of 4340 steel and tungsten carbide projectiles with specific shapes in to ceramic armor that includes 10 mm alumina (95%) is considered analytically and simulated with ls-dyna software. bernoulli equation used to consider the penetration velocity in ceramics, shows that the penetration is better and easier by increasing projectile density. the ...

L. A Souza, F. F. Bellotti, T. Frederico, M. T. Yamashita, and L. Tomio Instituto Tecnológico de Aeronáutica, DCTA, 12228-900, São José dos Campos, Brazil Department of Physics and Astronomy, Aarhus University, DK-8000 Aarhus C, Denmark Instituto de Fomento e Coordenação Industrial, 12228-901, São José dos Campos, SP, Brazil Instituto de F́ısica Teórica, UNESP Univ Estadual Paulista, C.P. 70532-...