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    Fault control of microgrid system: A case study of Karabuk University-Turkey
    (IOP Publishing Ltd, 2020) Yusupov, Z.; Almagrahi, N.; Tursunov, O.; Kodirov, D.; Almgarbj, H.A.; Toshpulatov, N.
    In this paper Karabuk University microgrid system is introduced and fault control of microgrid is analyzed. The microgrid system of Karabuk University campus consists of diesel generator, solar PV panels, energy storage unit, critical and non-critical loads. Simulation of microgrid in both grid-connected and isolated operation modes are conducted on MATLAB/Simulink. The fault control has been implemented in the microgrid system to effectively manage of power in the system. The system is effectively disconnecting the microgrid from main grid within a microsecond after fault conditions. The distributed energy sources have been supplying the energy to load based load profile settings. From the simulation results, the developed control mechanisms provide stable operation in the microgrid system. © Published under licence by IOP Publishing Ltd.
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    Study on issues of uninterrupted power supply, energy-saving and improving the quality of electrical energy of water facilities
    (IOP Publishing Ltd, 2020) Toshpulatov, N.; Tursunov, O.; Kodirov, D.; Maksumkhanova, A.; Yusupov, Z.
    This paper analyses the results of studies of uninterrupted power supply, energy saving issues, problems of improving the quality of electrical energy of irrigation pumping stations and electrical consumers of water facilities. The current state of the power supply system is described, and the analysis of the existing situation is carried out. On the basis of comparison of theoretical calculations and practical measurements of the consumption of electrical energy, discrepancies in the results were determined. A solution was found to the problem of reducing the actual consumption in relation to the calculated ones. Recommendations are given for ensuring uninterrupted power supply, solving the issues of increasing the energy efficiency of the equipment in operation for energy conservation and saving electrical energy by improving quality indicators. © Published under licence by IOP Publishing Ltd.