| Autor: |
Shokhin Dzhuraev, Svetlana Beryozkina, Mukhammadzhon Kamolov, Murodbek Safaraliev, Inga Zicmane, Khurshed Nazirov, Sherkhon Sultonov |
| Jazyk: |
angličtina |
| Rok vydání: |
2022 |
| Předmět: |
|
| Zdroj: |
Energy Reports, Vol 8, Iss , Pp 563-573 (2022) |
| Druh dokumentu: |
article |
| ISSN: |
2352-4847 |
| DOI: |
10.1016/j.egyr.2022.09.176 |
| Popis: |
Recently the electrical receivers with a nonlinear volt–ampere characteristic have increased significantly in utility electrical networks. The authors suggest applying a detailed account of their characteristics to analyze asymmetric/non-sinusoidal operating mode on an external electrical network. This paper is devoted to the problem of calculating the current level in a zero wire with an asymmetric operating mode of utility electrical networks containing such electrical receivers. A simulation model of the 0.4 kV network section of the urban electrical networks of Dushanbe has been developed. It is shown that a consideration of the higher harmonic components of the zero-sequence current is required, which is not a multiple of three. An algorithm for calculating the harmonic component of the zero-wire current has been also developed to determine the heating temperature of a cable. The obtained results make it possible to correctly select the cross-section of the zero wire of the cable line in the 0.4 kV distribution network for feeding a non-sinusoidal/asymmetric load. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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