Yazar "Köksal, Muhammet" seçeneğine göre listele

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  • Küçük Resim
    Öğe
    Computation of transmission line transients by using fast inverse laplace transform
    (İnönü Üniversitesi, Mühendislik Fakültesi, Elekrik Elektronik Mühendisliği Bölümü, Malatya, Türkiye, 1997) Mamiş, M. Salih; Köksal, Muhammet
    [Abstract Not Acailable]
  • Küçük Resim Yok
    Öğe
    Some renovations in transient analysis of transmission lines by state-space techniques
    (1996) Köksal, Muhammet; Mamiş, M. Salih
    A method for transient analysis of single phase transmission lines based on state-space technique is presented. Transmission lines are considered as the interconnection of many lumped parameter sections. By this approach state equations are formulated for the system by choosing the capacitor voltages and inductor currents as the state variables. These equations are solved by state space techniques to compute steady-state and transient responses of transmission lines for various source and load connections. A computer program called LPTLAP (Lumped Parameter Transmission Line Transient Analysis Program) has been prepared for both formulation and solution steps.
  • Küçük Resim
    Öğe
    State variable distributed-parameter representation of transmission line for transient simulations
    (Turkish Journal of Electrical Engineering and Computer Sciences, 2010) Mamiş, Mehmet Salih; Kaygusuz, Asım; Köksal, Muhammet
    Öz: Başlık (İngilizce): Öz (İngilizce): In this paper, a distributed-parameter state variable approach is used to calculate transients on transmission lines based on the concept of travelling waves. The method of characteristics for lossless line is used and the state equations are derived for the system. These equations are converted to a set of difference equations using the trapezoidal rule of integration and solved in time domain using LU decomposition. Single- and multi-phase transmission lines with various linear and non-linear terminations are considered in the illustrative examples. State-space modeling of transposed lines using modal decomposition is introduced and the effects caused by lumped parameter approximation of line losses are described. Comparisons with the results obtained by EMTP and conventional methods based on s-domain are given.