A development of a generalized frequency-domain transient program-FTP

The frequency-domain transient program (FTP) is based on a frequency-time transform method using nodal analysis, admittance parameters, and modal theories. Discontinuous and nonlinear elements are solved as initial condition problems using a piecewise linear approximation. The FTP is used to solve for the transient and steady states of a network composed of an arbitrary interconnection of basic circuit elements. The FTP is structured to be compatible with the Electromagnetic Transients Program (EMTP), so that the same input data and output formats can be used. The present version of the FTP can deal with a network with over a hundred nodes and branches. Comparisons of calculated results obtained with the FTP with results of field tests and calculations by the EMTP confirm the high accuracy and satisfactory efficiency of the FTP. The FTP offers the most accurate or theoretically exact solutions of transients on distributed-parameter lines. >

[1]  A. Ametani,et al.  Transient Calculations on Crossbonded Cables , 1983, IEEE Transactions on Power Apparatus and Systems.

[2]  M. J. Battisson,et al.  Calculation of switching phenomena in power systems , 1967 .

[3]  T. W. Sze,et al.  A general approach for obtaining transient response by the use of a digital computer , 1959, Transactions of the American Institute of Electrical Engineers, Part I: Communication and Electronics.

[4]  H. Nakanishi,et al.  Transient calculation of a transmission line using superposition law , 1986 .

[5]  H. W. Dommel,et al.  Computation of electromagnetic transients , 1974 .

[6]  Sylvia J. Day,et al.  Developments in Obtaining Transient Response Using Fourier Transforms , 1965 .

[7]  W. Scott Meyer,et al.  Numerical Modelling of Frequency-Dependent Transmission-Line Parameters in an Electromagnetic Transients Program , 1974 .

[8]  Hermann W. Dommel,et al.  Digital Computer Solution of Electromagnetic Transients in Single-and Multiphase Networks , 1969 .

[9]  Akihiro Ametani,et al.  Surge Characteristics on an Untransposed Vertical Line , 1983 .

[10]  A. Ametani.  A highly efficient method for calculating transmission line transients , 1976, IEEE Transactions on Power Apparatus and Systems.

[11]  Albert E. Ruehli,et al.  The modified nodal approach to network analysis , 1975 .

[12]  Akihiro Ametani,et al.  Surge propagation characteristics of a POF cable , 1985 .

[13]  Jose R. Marti.  Accuarte Modelling of Frequency-Dependent Transmission Lines in Electromagnetic Transient Simulations , 1982 .

[14]  A. Ametani,et al.  Development of exponential Fourier transform and its application to electrical transients , 1979 .

[16]  L. Marti,et al.  Simulation of transients in underground cables with frequency-dependent modal transformation matrices , 1988 .

[17]  A. Ametani,et al.  A General Formulation of Impedance and Admittance of Cables , 1980, IEEE Transactions on Power Apparatus and Systems.

[18]  A. Ametani.  Wave Propagation Characteristics of Cables , 1980, IEEE Transactions on Power Apparatus and Systems.

[19]  L. M. Wedepohl.  Application of matrix methods to the solution of travelling-wave phenomena in polyphase systems , 1963 .

[20]  A. Semlyen,et al.  Fast and accurate switching transient calculations on transmission lines with ground return using recursive convolutions , 1975, IEEE Transactions on Power Apparatus and Systems.