Existing sliding mode observer (SMO) schemes for fault reconstruction in descriptor systems
require stringent conditions, or do not consider disturbances which can corrupt the …

This paper describes a Newton-Raphson method that accurately shifts a set of electrical
network poles and transfer function zeros to more suitable locations in the complex plane to …

This paper describes the use of modal analysis of s-domain network models in the solution
of harmonic distortion problems of industrial systems. Modal analysis involves the …

This paper describes an s-domain sequence model for three winding transformers to be
used in modal analysis of ac networks. The model takes into account off-nominal tap …

Dois tipos de modelagens propícias para a realização da análise modal de redes elétricas
são apresentados neste trabalho: sistemas descritores (SD) e matriz Y (s). Os modelos …

This paper describes a Newton-Raphson method that shifts a set of electrical network poles
and transfer function zeros to specify positions in the complex plane. These shifts aim at the …

The HarmZs program has been developed for the analysis of harmonic problems in power
systems. This program makes use of modal analysis that provides additional dynamic …

A Newton-Raphson method was proposed previously to accurately shift the electrical
network poles and zeros to more suitable locations in the complex plane to improve the …

SUMÁRIO O programa HarmZs do CEPEL faz a análise de harmônicos, modelando
detalhadamente a parte linear da rede, sendo a parte não linear representada por fontes de …

This paper describes two network modeling approaches. The s-domain or Y (s) and
descriptor system approaches. Both approaches are suitable for perform the modal analysis …