OPTIMAL LOSSES IN POWER DISTRIBUTION NETWORKS

The distributed power network 0,38–10 kV is investigated and the conditions for providing optimal load of network and technically reasonable (minimal) values of electricity consumption are determined. It is shown that the optimum (minimum) value of all technical losses of electricity in power networ...

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Main Author: M. I. Fursanov
Format: Article
Language:Russian
Published: Belarusian National Technical University 2014-10-01
Series:Известия высших учебных заведений и энергетических объединенний СНГ: Энергетика
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Online Access:https://energy.bntu.by/jour/article/view/815
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author M. I. Fursanov
author_facet M. I. Fursanov
author_sort M. I. Fursanov
collection DOAJ
description The distributed power network 0,38–10 kV is investigated and the conditions for providing optimal load of network and technically reasonable (minimal) values of electricity consumption are determined. It is shown that the optimum (minimum) value of all technical losses of electricity in power network 0,38–10 kV is being achieved at the equality of semi-constant and variable (load) losses in network  and in denominated units for the period T and is characterized by twice value of variable losses. Optimum work load of transformers is determined by their technical data and is equal to (approximately) 40 % and corresponds to relatively low value of minimum losses – 1,73 %. In the whole, in network 0,38–10 kV there is optimal load factor for non-changeable equipment set, to a great extent, which depends on configuration and type of equipment. The more branching of network the less will be effective line’s resistance and so the value of optimal load factor will be more significant.Networks 0,38 kV mainly influence on formation and value of total electricity losses in network 0,38–10 kV as losses in 0,38 kV networks under the equal conditions are higher than in 10 kV networks in times (or ten times). Losses in 0,38 kV network to a great extend decreases the value of generalized coefficient of network load and increases optimal value of relative loss in network 0,38–10 kV. And optimal total losses in denominated units are not changed. The developed structural algorithm of technical losses of electricity in network 0,38–10 kV allows evaluating actual and optimal network loading, to determine minimum and reserves of losses enhancement, but it can be realize only when loading of lines and transformers is low. That is why minimum technical losses are not finale criteria of optimal state of network which should be (in reality) determined from economical reasons, for example, from minimum cost of electrical energy transmission.
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institution Kabale University
issn 1029-7448
2414-0341
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publishDate 2014-10-01
publisher Belarusian National Technical University
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series Известия высших учебных заведений и энергетических объединенний СНГ: Энергетика
spelling doaj-art-f43bae0e728e49d786583a933368827a2025-02-03T05:35:41ZrusBelarusian National Technical UniversityИзвестия высших учебных заведений и энергетических объединенний СНГ: Энергетика1029-74482414-03412014-10-01051526807OPTIMAL LOSSES IN POWER DISTRIBUTION NETWORKSM. I. Fursanov0Belarusian National Technical UniversityThe distributed power network 0,38–10 kV is investigated and the conditions for providing optimal load of network and technically reasonable (minimal) values of electricity consumption are determined. It is shown that the optimum (minimum) value of all technical losses of electricity in power network 0,38–10 kV is being achieved at the equality of semi-constant and variable (load) losses in network  and in denominated units for the period T and is characterized by twice value of variable losses. Optimum work load of transformers is determined by their technical data and is equal to (approximately) 40 % and corresponds to relatively low value of minimum losses – 1,73 %. In the whole, in network 0,38–10 kV there is optimal load factor for non-changeable equipment set, to a great extent, which depends on configuration and type of equipment. The more branching of network the less will be effective line’s resistance and so the value of optimal load factor will be more significant.Networks 0,38 kV mainly influence on formation and value of total electricity losses in network 0,38–10 kV as losses in 0,38 kV networks under the equal conditions are higher than in 10 kV networks in times (or ten times). Losses in 0,38 kV network to a great extend decreases the value of generalized coefficient of network load and increases optimal value of relative loss in network 0,38–10 kV. And optimal total losses in denominated units are not changed. The developed structural algorithm of technical losses of electricity in network 0,38–10 kV allows evaluating actual and optimal network loading, to determine minimum and reserves of losses enhancement, but it can be realize only when loading of lines and transformers is low. That is why minimum technical losses are not finale criteria of optimal state of network which should be (in reality) determined from economical reasons, for example, from minimum cost of electrical energy transmission.https://energy.bntu.by/jour/article/view/815power distribution networklevel of lossesoptimal loadingstructural algorithm
spellingShingle M. I. Fursanov
OPTIMAL LOSSES IN POWER DISTRIBUTION NETWORKS
Известия высших учебных заведений и энергетических объединенний СНГ: Энергетика
power distribution network
level of losses
optimal loading
structural algorithm
title OPTIMAL LOSSES IN POWER DISTRIBUTION NETWORKS
title_full OPTIMAL LOSSES IN POWER DISTRIBUTION NETWORKS
title_fullStr OPTIMAL LOSSES IN POWER DISTRIBUTION NETWORKS
title_full_unstemmed OPTIMAL LOSSES IN POWER DISTRIBUTION NETWORKS
title_short OPTIMAL LOSSES IN POWER DISTRIBUTION NETWORKS
title_sort optimal losses in power distribution networks
topic power distribution network
level of losses
optimal loading
structural algorithm
url https://energy.bntu.by/jour/article/view/815
work_keys_str_mv AT mifursanov optimallossesinpowerdistributionnetworks