Performance evaluation of transmission of electricity in the sip–lines in electric distribution networks
DOI:
https://doi.org/10.15587/1729-4061.2014.26300Keywords:
energy efficiency, energy-saving, electricity losses, asymmetric and nonlinear power consumption modes, harmonicsAbstract
A method of performance evaluation of electricity transmission through modern electricity transmission SIP-lines of electric distribution networks in conditions of abruptly variable, nonlinear and asymmetric operation mode of electricity consumers was proposed in the paper. The specified operation mode of consumers meet modern operation conditions of the electrical network and is almost not considered in existing calculation methods of the actual electricity losses in the network that does not allow to adequately assess real energy efficiency of electric networks.
The proposed evaluation method of electricity losses is based on measuring the current THD and values of harmonic components of currents and voltages in the network that allows to use existing measuring instruments - electricity quality analyzers for evaluation. The relationship between the measured electricity quality parameters and the instantaneous voltage change rate allows to estimate the share of electricity losses, which is caused by abruptly variable, nonlinear and asymmetric operation mode of consumers.
Application of the developed method allows to assess the level of additional electricity losses in order to analyze the causes of the deterioration of electricity transmission efficiency, reduce these losses and increase energy efficiency of electricity transmission through the network. It was shown that in the modern electric distribution networks, additional electricity losses are almost 10% due to the presence of higher harmonic components of currents and voltages in the electric network.References
- Kuznecov, V., Grigor'ev, A., Daniljuk, V. (1992). Snizhenie nesimmetrii i nesinusoidal'nosti naprjazhenij v jelektricheskih setjah. Kiev: Naukova dumka, 240.
- Kuznecov, V., Kurennyj, Je., Ljutyj, A. (2005). Jelektromagnitnaja sovmestimost'. Nesimmetrija i nesinusoidal'nost' naprjazhenija. Doneck: Nord-Press, 250.
- Soldatkina, L. (1998). Jelektricheskie seti i sistemy Moscow: Jenergija, 216.
- Perhach, V., Segeda, M., Varec'kij, Ju. (1993). Rozrahunok strumіv korotkogo zamikannja ta nepovnofaznih rezhimіv elektroenergetichnih sistem u faznih koordinatah metodom konturnih strumіv. Tehnіchna elektrodinamіka, 4, 67–68.
- Zhelezko, Ju. (2002). Raschet, analiz i normirovanie poter' jelektrojenergii v jelektricheskih setjah. Moscow: NU JeNAS, 280.
- Ovchinnikov, A. (2003). Poteri jelektrojenergii v raspredelitel'nyh setjah 0,38 – 6 (10) kV. Novosti JelektroTehniki, 1, 15–17.
- Akagi, H., Watanabe, E. H., Aredes, M. (2007). Instantaneous Power Theory and Applications to Power Conditioning, 379. doi:10.1002/0470118938
- Veprik, Ju. (2010). Metody modelirovanija rezhimov raboty jelektricheskih sistem s nesimmetriej i tendencii ih razvitija. Vіsnik Nacіonal'nogo tehnіchnogo unіversitetu «Harkіvs'kij polіtehnіchnij іnstitut», 1, 48–61.
- Gricaj, M. (2011). Meroprijatija po povysheniju jeffektivnosti raboty jelektricheskoj seti. Regional'nye problemy jenergetiki, 3 (17), 23–26.
- Cicorin, A. (2011). O poterjah jelektricheskoj jenergii v linijah jelektroperedach 0,4-10 kV. Jelektricheskie stancii, 3, 48–51.
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2014 Володимир Ігорович Романовський, Максим Вікторович Качан
This work is licensed under a Creative Commons Attribution 4.0 International License.
The consolidation and conditions for the transfer of copyright (identification of authorship) is carried out in the License Agreement. In particular, the authors reserve the right to the authorship of their manuscript and transfer the first publication of this work to the journal under the terms of the Creative Commons CC BY license. At the same time, they have the right to conclude on their own additional agreements concerning the non-exclusive distribution of the work in the form in which it was published by this journal, but provided that the link to the first publication of the article in this journal is preserved.
A license agreement is a document in which the author warrants that he/she owns all copyright for the work (manuscript, article, etc.).
The authors, signing the License Agreement with TECHNOLOGY CENTER PC, have all rights to the further use of their work, provided that they link to our edition in which the work was published.
According to the terms of the License Agreement, the Publisher TECHNOLOGY CENTER PC does not take away your copyrights and receives permission from the authors to use and dissemination of the publication through the world's scientific resources (own electronic resources, scientometric databases, repositories, libraries, etc.).
In the absence of a signed License Agreement or in the absence of this agreement of identifiers allowing to identify the identity of the author, the editors have no right to work with the manuscript.
It is important to remember that there is another type of agreement between authors and publishers – when copyright is transferred from the authors to the publisher. In this case, the authors lose ownership of their work and may not use it in any way.
