Mitigation of electric arc furnace transformer inrush current using soft-starter-based controlled energization

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dc.creatorIgor Amariz Pires
dc.creatorAlysson Machado
dc.creatorBraz de J. Cardoso Filho
dc.date.accessioned2025-04-01T17:08:49Z
dc.date.accessioned2025-09-09T00:44:41Z
dc.date.available2025-04-01T17:08:49Z
dc.date.issued2017
dc.identifier.doi10.1109/IAS.2017.8101818
dc.identifier.urihttps://hdl.handle.net/1843/81187
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.rightsAcesso Restrito
dc.subjectAltos-fornos
dc.subjectSoldagem elétrica
dc.subject.otherElectric Arc Furnace , Power transformer energization , Series Thyristors , Soft-starter , Thyristor Series Operation , Transformer Inrush Current
dc.subject.otherElectric Arc Furnace , Electric Arc Furnace Transformer , Simulation Results , Transformative Power , Flux-cored , Power System , Loading Conditions , Short-circuit , Peak Current , Current Voltage , Transformer Model , Short-circuit Current , Forward Bias , Opposite Characteristics , Circuit Breaker , Voltage Sag , Line Voltage , Reverse Recovery , Secondary Voltage , Light Load Conditions , Fast Switching , Nominal Current , Blocking Voltage
dc.titleMitigation of electric arc furnace transformer inrush current using soft-starter-based controlled energization
dc.typeArtigo de evento
local.citation.spage1
local.description.resumoThe energization of power transformers is a frequent operation in Electric Arc Furnaces (EAF). Magnetization inrush currents with 10 to 50 times the rated transformer current can flow during several line cycles. The magnitude of the inrush currents depends on parameters like the point on wave of voltage energization, residual flux in the core, transformer size and utility systems characteristics. This momentary high current results in system disturbances and reduction of the transformer life cycle. In this paper a scheme to mitigate the inrush current using controlled voltage ramp soft-starter-based circuit is presented. Simulation and experimental results prove the effectiveness of the soft-starter-based controlled energization.
local.publisher.countryBrasil
local.publisher.departmentENG - DEPARTAMENTO DE ENGENHARIA ELÉTRICA
local.publisher.departmentENG - DEPARTAMENTO DE ENGENHARIA ELETRÔNICA
local.publisher.initialsUFMG
local.url.externahttps://ieeexplore.ieee.org/abstract/document/8101818

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