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Analysis of institutional authors

Diez, JmCorresponding AuthorBlasco, PaAuthorMontoya Villena, RafaelAuthor

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Equivalent circuit and calculation of unbalanced power in three-wire three-phase linear networks

Publicated to:Iet Generation Transmission & Distribution. 12 (7): 1466-1473 - 2018-04-10 12(7), DOI: 10.1049/iet-gtd.2017.0670

Authors: Montoya-Mira, Rafael; Diez, Jose M; Blasco, Pedro A; Montoya, Rafael

Affiliations

Univ Politecn Valencia, Dept Ingn Elect, Plaza Ferrandiz & Carbonell S-N - Author

Abstract

For analysis of three-wire three-phase linear systems, the transformations wye-delta and delta-wye from theorem of Kennelly are used. These transformations can be applied to balanced systems but not to unbalanced systems. This is due to the fact that zero-sequence voltages or zero-sequence currents are present in these types of connections. This modifies the value of the unbalance power in the load with respect to the generator. These zero-sequence voltages and currents that appear in generators and loads are not transferred over the network. The zero-sequence voltage in a delta-connected load and the zero-sequence current that is obtained using theorem of Kennelly in a star-connected load, or vice versa, cause different imbalance effects. Here, the equivalent circuit for any point of the system is developed. The impedances of the equivalent circuit in any node are calculated using line-to-line voltages and line currents. This equivalent circuit incorporates all energetic phenomena, including the unbalance of all downstream loads. For its verification, the phasor unbalance power is used.

Keywords

Apparent powerBalanced systemsConnected loadsDefinitionsDelta-connected loadDelta-wye transformationElectric power generationEquivalent circuitEquivalent circuitsKennelly theoremLine currentLine currentsLine voltageLine-to-line voltageLinear networksLinear systemsLinear transformationsMathematical transformationsPhasor measurementPhasor unbalance powerStar-connected loadSystemsThree phaseThree-wire three-phase linear networkTiming circuitsUnbalanced power calculationUnbalanced systemsVoltage unbalanceWye-delta transformationZero sequence currentZero sequence voltageZero-sequence currentZero-sequence voltageZero-sequence voltage,zero-sequence current,delta-connected load,star-connected load,line-to-line voltage,line current,phasor unbalance power

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal Iet Generation Transmission & Distribution due to its progression and the good impact it has achieved in recent years, according to the agency Scopus (SJR), it has become a reference in its field. In the year of publication of the work, 2018, it was in position , thus managing to position itself as a Q1 (Primer Cuartil), in the category Electrical and Electronic Engineering. Notably, the journal is positioned above the 90th percentile.

Independientemente del impacto esperado determinado por el canal de difusión, es importante destacar el impacto real observado de la propia aportación.

Según las diferentes agencias de indexación, el número de citas acumuladas por esta publicación hasta la fecha 2025-06-27:

  • WoS: 4
  • Scopus: 4

Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2025-06-27:

  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 5 (PlumX).

It is essential to present evidence supporting full alignment with institutional principles and guidelines on Open Science and the Conservation and Dissemination of Intellectual Heritage. A clear example of this is:

Leadership analysis of institutional authors

There is a significant leadership presence as some of the institution’s authors appear as the first or last signer, detailed as follows: First Author (Montoya-Mira, R) and Last Author (Montoya, R).

the author responsible for correspondence tasks has been Diez Aznar, José Manuel.