A Novel Approach of Synchronization of Microgrid with a Power System of Limited Capacity

Anvari Ghulomzoda, Murodbek Safaraliev, Pavel Matrenin, Svetlana Beryozkina, Inga Zicmane, Pavel Gubin, Kamol Gulyamov and Nasim Saidov
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Anvari Ghulomzoda: Department of Automated Electric Power Systems, Novosibirsk State Technical University, 630073 Novosibirsk, Russia
Murodbek Safaraliev: Department of Automated Electrical Systems, Ural Federal University, 620002 Yekaterinburg, Russia
Pavel Matrenin: Department of Industrial Power Supply Systems, Novosibirsk State Technical University, 630073 Novosibirsk, Russia
Svetlana Beryozkina: College of Engineering and Technology, American University of the Middle East, Kuwait
Inga Zicmane: Faculty of Electrical and Environmental Engineering, Riga Technical University, LV-1048 Riga, Latvia
Pavel Gubin: Department of Automated Electrical Systems, Ural Federal University, 620002 Yekaterinburg, Russia
Kamol Gulyamov: Department of Electric Drive and Electric Machines, Tajik Technical University Named after Academic M. S. Osimi, Dushanbe 734042, Tajikistan
Nasim Saidov: Department of Energy Efficient and Resourse Saving Technologies, Dushanbe Branch of National University of Science and Technology MISIS, Dushanbe 734012, Tajikistan

Sustainability, 2021, vol. 13, issue 24, 1-17

Abstract: Currently, active networks called microgrids are formed on the basis of local power supply systems with a small share of distributed generation. Microgrids operating in an island mode, in some cases, have the ability to transfer electricity excess to an external network leading to a synchronization requirement; thus, the optimization task in terms of the system’s synchronization must be considered. This paper proposes a method for obtaining synchronization between microgrids and power systems of limited capacity based on a passive synchronization algorithm, allowing us to connect a microgrid to an external power system with a minimum impact moment on the shaft of the generating equipment. The algorithm application was demonstrated by considering a real-life object in Tajikistan. The simulation was carried out on RastrWin3. The obtained results show that the microgrid generator is connected to an external power system at an angle of 0.3° and a power surge of 29 kW, unlike the classical synchronization algorithm with an angle of 6.8° and a power surge of 154 kW (a reduction of the shock moment by more than five times). The proposed synchronization method allows us to reduce the resource consumption of the generating equipment and increase the reliability and efficiency of the functioning units of the examined power system.

Keywords: decentralized management; microgrid; passive synchronization; power system of limited capacity; recloser (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2021
References: View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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