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description Publicationkeyboard_double_arrow_right Article , Journal 2020 Russian FederationPublisher:MDPI AG Authors:Anvari Ghulomzoda;
Anvari Ghulomzoda
Anvari Ghulomzoda in OpenAIREAminjon Gulakhmadov;
Alexander Fishov;Aminjon Gulakhmadov
Aminjon Gulakhmadov in OpenAIREMurodbek Safaraliev;
+4 AuthorsMurodbek Safaraliev
Murodbek Safaraliev in OpenAIREAnvari Ghulomzoda;
Anvari Ghulomzoda
Anvari Ghulomzoda in OpenAIREAminjon Gulakhmadov;
Alexander Fishov;Aminjon Gulakhmadov
Aminjon Gulakhmadov in OpenAIREMurodbek Safaraliev;
Xi Chen;Murodbek Safaraliev
Murodbek Safaraliev in OpenAIREKhusrav Rasulzoda;
Khusrav Rasulzoda
Khusrav Rasulzoda in OpenAIREKamol Gulyamov;
Kamol Gulyamov
Kamol Gulyamov in OpenAIREJavod Ahyoev;
Javod Ahyoev
Javod Ahyoev in OpenAIREdoi: 10.3390/en13143673
Small-scale power generation based on renewable energy sources is gaining popularity in distribution grids, creating new challenges for power system control. At the same time, remote consumers with their own small-scale generation still have low reliability of power supply and poor power quality, due to the lack of proper technology for grid control when the main power supply is lost. Today, there is a global trend in the transition from a power supply with centralized control to a decentralized one, which has led to the Microgrid concept. A microgrid is an intelligent automated system that can reconfigure by itself, maintain the power balance, and distribute power flows. The main purpose of this paper is to study the method of control using reclosers in the Lahsh district of the Rasht grid in Tajikistan with distributed small generation. Based on modified reclosers, a method of decentralized synchronization and restoration of the grid normal operation after the loss of the main power source was proposed. In order to assess the stable operation of small hydropower plants under disturbances, the transients caused by proactive automatic islanding (PAI) and restoration of the interconnection between the microgrid and the main grid are shown. Rustab software, as one of the multifunctional software applications in the field of power systems transients study, was used for simulation purposes. Based on the simulation results, it can be concluded that under disturbances, the proposed method had a positive effect on the stability of small hydropower plants, which are owned and dispatched by the Rasht grid. Moreover, the proposed method sufficiently ensures the quality of the supplied power and improves the reliability of power supply in the Lahsh district of Tajikistan.
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You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.3390/en13143673&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold 10 citations 10 popularity Top 10% influence Average impulse Top 10% Powered by BIP!
more_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.3390/en13143673&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2022Publisher:MDPI AG Authors:Aminjon Gulakhmadov;
Aminjon Gulakhmadov
Aminjon Gulakhmadov in OpenAIRESalima Asanova;
Damira Asanova;Salima Asanova
Salima Asanova in OpenAIREMurodbek Safaraliev;
+4 AuthorsMurodbek Safaraliev
Murodbek Safaraliev in OpenAIREAminjon Gulakhmadov;
Aminjon Gulakhmadov
Aminjon Gulakhmadov in OpenAIRESalima Asanova;
Damira Asanova;Salima Asanova
Salima Asanova in OpenAIREMurodbek Safaraliev;
Murodbek Safaraliev
Murodbek Safaraliev in OpenAIREAlexander Tavlintsev;
Alexander Tavlintsev
Alexander Tavlintsev in OpenAIREEgor Lyukhanov;
Egor Lyukhanov
Egor Lyukhanov in OpenAIRESergey Semenenko;
Sergey Semenenko
Sergey Semenenko in OpenAIREIsmoil Odinaev;
Ismoil Odinaev
Ismoil Odinaev in OpenAIREdoi: 10.3390/en15030765
This paper proposes a structured hierarchical-multilevel approach to calculating the power flows and losses of electricity in radial electrical networks with different nominal voltages at given loads and voltages of the power source. The researched electrical networks are characterized by high dimensionality, dynamism of development, but also insufficient completeness and reliability of state information. The approach is based on the representation of the initial network graph in the form of a hierarchical-multilevel structure, divided into two stages with rated voltages Unom≤35 kV and Unom≥35 kV, and using the traditional (manual) engineering two-stage method, where the calculation is performed in a sequence from bottom to top (stage 1) and from top to bottom (stage 2), moving along the structure of the network. The application of the above approach makes it possible to obtain an algorithm for implementation on a computer, which is characterized by universality (for an arbitrary configuration and complexity of the network), high performance and low requirements for the computer memory.
add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.3390/en15030765&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold 3 citations 3 popularity Top 10% influence Average impulse Average Powered by BIP!
more_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.3390/en15030765&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu