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Journal ArticleDOI

A Synthesis Method for One-Port and Multi-Port Equivalent Networks for Analysis of Power System Transients

Van Que Do, +1 more
- 01 Apr 1986 - 
- Vol. 1, Iss: 2, pp 103-113
TLDR
In this paper, an iterative method is developed for synthesizing one-port equivalent networks by the removal of poles corresponding to resonances of the driving-point impedance or admittance function.
Abstract
Equivalent networks can be used in power system simulation to reduce simulation equipment or computer time and memory space. In this paper, an iterative method is developed for synthesizing one-port equivalent networks by the removal of poles corresponding to resonances of the driving-point impedance or admittance function. This results in networks formed by the series or parallel connection of modular RLC circuits. The RLC values are calculated using a parameter-optimization technique. Multi-port equivalent networks are first configured as ? or T forme composed of one-port network branches and the latters are then synthesized by the proposed method for one-port equivalent networks.

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Citations
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Journal ArticleDOI

Dynamic System Equivalents: A Survey of Available Techniques

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

A method for wide frequency range modeling of power transformers and rotating machines

TL;DR: In this article, a method is presented for state space formulation of machine windings based on external terminal impedance measurements and data related to the internal structure is not required, and a numerical method is given for calculation of the state equation parameters directly from the measured terminal impedance characteristics.
Journal ArticleDOI

Three-transfer-function approach for building phenomenological models of synchronous machines

TL;DR: In this paper, the authors provide analytical and experimental evidence for the claim that a triple transfer function (3TF) parameterisation is the only one general enough to cope with both stator and rotor voltage perturbations, thus broadening the range of physical phenomena the model can account for.
References
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Journal ArticleDOI

Simulation of AC System Impedance in HVDC System Studies

TL;DR: In this paper, a simple approach to calculate an approximate equivalent network consisting of parallel LCR branches and having an impedance-frequency characteristic similar to that given for the ac system is presented.
Journal ArticleDOI

Transmission Network Equivalents for Electromagnetic Transients Studies

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

An Iterative Pole-Removal Method for Synthesis of Power System Equivalent Networks

TL;DR: 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.
Journal ArticleDOI

Coordinated Use of TNA and Digital Computer for Switching-Surge Studies: Transient Equivalent of a Complex Network

TL;DR: In this article, the authors discuss the possible correct evaluation of switching overvoltages by means of a coordinated use of analog and digital methods, taking into account both frequency and voltage-dependent parameters.
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