Show simple item record

dc.contributor.authorSantos Ferrari, Júlio Cesar [UNESP]
dc.contributor.authorJusto de Araújo, Anderson Ricardo
dc.contributor.authorKurokawa, Sérgio [UNESP]
dc.identifier.citationInternational Journal of Electrical Power and Energy Systems, v. 125.
dc.description.abstractThis paper analyses the voltage profile along a three-phase transmission line whose power transfer capability was increased by an uprating technique based on the injection of a third harmonic voltage component. The superposition of a third harmonic voltage component with the fundamental component at the sending and receiving ends of the line proposes to increase the amplitude of the fundamental voltage component without exceeding the electrical insulation voltage limits, and thus increasing the power transfer capability. However, this uprating technique can affect the voltage amplitudes significantly along the line. In some cases, these amplitudes can be higher than acceptable values. The study was carried out in Simulink/MatLab® software. Two three-phase uprated transmission lines with voltages of 230 kV and 735 kV were represented by the Bergeron's line model, then voltage profiles and the voltage waveforms in the time domain at the midpoint of each simulated system were obtained. Results have shown that 230-kV transmission lines with lengths of up to 300 km operating under natural to heavy load conditions can be uprated by the THV technique, whereas 735-kV transmission lines have presented overvoltages along its length when operating between light and natural loading, attesting that this technique is not feasible for this system.en
dc.relation.ispartofInternational Journal of Electrical Power and Energy Systems
dc.subjectPower capability
dc.subjectThird harmonic voltage
dc.subjectTransmission lines
dc.subjectUprating technique
dc.titleAnalysis of the voltage profile in transmission lines operating with injected third harmonic voltagesen
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionUniversidade Estadual de Campinas (UNICAMP)
dc.description.affiliationSão Paulo State University-UNESP
dc.description.affiliationUniversity of Campinas-UNICAMP
dc.description.affiliationUnespSão Paulo State University-UNESP
Localize o texto completo

Files in this item


There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record