Real-time rotor ground fault protection based on the convolution integral for synchronous motors with static excitation

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dc.creatorGustavo Fortes
dc.creatorEnzo Gomes
dc.creatorPedro Vilkn
dc.creatorLenin M. F. Morais
dc.creatorThiago Ribeiro de Oliveira
dc.creatorCláudio Nunes
dc.date.accessioned2025-05-29T14:07:23Z
dc.date.accessioned2025-09-09T01:34:33Z
dc.date.available2025-05-29T14:07:23Z
dc.date.issued2023
dc.identifier.doi10.1109/TIE.2023.3279556
dc.identifier.issn02780046
dc.identifier.urihttps://hdl.handle.net/1843/82618
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.rightsAcesso Restrito
dc.subjectEletrônica de potência
dc.subject.otherRotor fault detection
dc.subject.otherground fault
dc.subject.othersynchronous motors
dc.subject.otherstatic excitation
dc.subject.otherCircuit faults , Rotors , Voltage measurement , Synchronous motors , Resistance , Grounding , Harmonic analysis
dc.subject.otherSynchronous Motor , Convolution Integral , Ground Fault , Static Excitation , Low Sensitivity , Limited Bandwidth , Electric Power System , Rotor Winding , Detection Limit , Normal Conditions , Real-Time System , Simple Model , Equivalent Circuit , Function Of Frequency , Current Field , Parasitic Capacitance , Test Bench , Fault Occurrence , Rf Values , Synchronous Generator , Fault Resistance , Grounding Resistance , DC Level , Fault Position , Protective Threshold , Dc Value , Input Transformation , Common Perspective
dc.titleReal-time rotor ground fault protection based on the convolution integral for synchronous motors with static excitation
dc.typeArtigo de periódico
local.citation.epage4190
local.citation.spage4181
local.citation.volume71
local.description.resumoThe detection of motor failures is a very active research topic within the literature. In particular, ground faults in wound rotors of synchronous motors have a relatively high failure rate since the rotor winding is exposed concomitantly to electrical, mechanical, and thermal stress cycles. Its detection depends on the grounding type of the electrical power system, and, in its early stages, it may present significant resistance. This article provides a new rotor ground fault protection method based on the convolution integral of the neutral voltage that is measured by a single extra sensor. In addition, it is able to fill out the gaps of the current state-of-the-art, such as: provides a larger detection frontier for incipient faults; has low sensitivity for dynamic variances of the firing angle, allowing its utilization in cyclical applications; and can be implemented in power electronic controller systems with limited bandwidth. In this sense, mathematical modeling, simulations and experimental data are presented to support to the proposed method. Furthermore, it was implemented in the controller of static excitation converters for real-time protection and successfully tested with synchronous motors (2.4MW/3.3kV) of a cold rolling mill plant owned by ArcelorMittal Group.
local.publisher.countryBrasil
local.publisher.departmentENG - DEPARTAMENTO DE ENGENHARIA ELETRÔNICA
local.publisher.initialsUFMG
local.url.externahttps://ieeexplore.ieee.org/document/10138730

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