Journal ArticleDOI
An Iterative Pole-Removal Method for Synthesis of Power System Equivalent Networks
Momeilo M. Gavrilovic,Van QueDo +1 more
TLDR
This paper presents an iterative pole-removal method based on the least-squares fitting techniq% to synthesize RLC equivalent networks according to their specified driving-point function in the frequency domain.Abstract:
In power system simulation (by means of TNA or digital computer) equivalent networks can be used to reduce the simulation complexity. This paper presents an iterative pole-removal method based on the least-squares fitting techniq% to synthesize RLC equivalent networks according7 to their specified driving-point function in the frequency domain. The synthesized networks are composed of only passive components to represent the DC constant, complex poles as well as poles at zero and infinite. Poles are removed individually from the specified driving-point function applying the least-squares fitting with respect to the frequency domain around the relevant resonance. This algorithm converges quickly even for highly resistive systems.read more
Citations
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Journal ArticleDOI
Dynamic System Equivalents: A Survey of Available Techniques
Udaya Annakkage,Nirmal-Kumar C. Nair,Y. Liang,Aniruddha M. Gole,Venkata Dinavahi,Bjorn Gustavsen,Taku Noda,H. Ghasemi,Antonello Monti,Mahmoud Matar,Reza Iravani,Juan A. Martinez +11 more
TL;DR: In this paper, a brief review of techniques available for reducing large systems to smaller equivalents is presented, which is divided into high frequency equivalents, low frequency equivalents and wideband equivalents.
Journal ArticleDOI
Multi-port frequency dependent network equivalents for the EMTP
TL;DR: A method is developed to reduce large power systems to single- and multiport frequency-dependent equivalents, which consist of simple RLC modules that faithfully reproduce the frequency characteristics of the network.
Journal ArticleDOI
Identification of a multiphase network equivalent for electromagnetic transient calculations using partitioned frequency response
TL;DR: In this paper, an algorithm for identifying a multiphase network equivalent for EM transient calculations is presented. But the proposed algorithm cannot handle a wide range of values which cannot be accurately treated within machine arithmetic accuracy.
Journal ArticleDOI
Time domain modeling of external systems for electromagnetic transients programs
TL;DR: In this paper, a time domain method for accurate modeling of external power systems in electromagnetic transients programs (EMTPs) is presented, where the response of the external system to a multisine excitation signal is utilized to identify a discrete-time model for the external systems.
Journal ArticleDOI
Multi-port equivalencing of external systems for simulation of switching transients
TL;DR: In this paper, a multi-port external system equivalent model to simulate switching transients is developed based on direct time domain techniques, as opposed to the currently available models based on frequency domain methods.
References
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Journal ArticleDOI
Transmission Network Equivalents for Electromagnetic Transients Studies
A. S. Morched,V. Brandwajn +1 more
TL;DR: In this article, a method to generate network equivalents from the frequency response of its admittance has been developed, which are in the form of lumped parameter circuits, have a simple structure and reproduce the network's behaviour over a wide frequency range.
Journal ArticleDOI
Transmission Network Equivalents for Electromagnetic Transients Studies
Journal ArticleDOI
Realization of resistively terminated two-variable lossless ladder networks
TL;DR: In this paper, the authors presented a simple procedure for the realization of a two-variable doubly terminated low-pass ladder network with all transmission zeros at s 1 = ∞ and s 2 = \infty (in the complex S 1, S 2 biplane).
Journal ArticleDOI
Synthesis of lumped and distributed networks for impedance matching of complex loads
R. Cottee,William T. Joines +1 more
TL;DR: Numerically generated results based on existing theoretical restrictions are presented enabling the straight-forward synthesis of ladder type networks for matching a resistive source to a complex load.
Journal ArticleDOI
Cascade synthesis of a class of multivariable positive real functions
TL;DR: In this article, necessary and sufficient conditions are developed for the realization of a multivariable positive real function (MPRF) as the driving point function of an extracted single-variable lossless two-port with a termination whose driving-point function is an MPRF in the rest of the variables as the load.
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