Перегляд за Автор "Veselova, N. V."
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Документ The development of high-voltage technique in NTU "KhPI"(Национальный технический университет "Харьковский политехнический институт", 2018) Veselova, N. V.; Ojo, Solomon; Vasylieva, O. E.Документ Horizontal-axis wind turbine of medium capacity for using in morocco(ТОВ "Планета-Прінт", 2021) Veselova, N. V.; Hasnaa MontassirДокумент Increasing of the effectiveness of the industrial silicon photo-electric transformers for the hybrid photo-power module(Луцький національний технічний університет, 2017) Zaytsev, R. V.; Kirichenko, M. V.; Zaytseva, L. V.; Veselova, N. V.Possibilities of increase in effectiveness over 20% for Chinese made silicon photo-electric transformers have been investigated. By the method of computer designing operation it is established that the lifetimes of nonequilibrium charge carriers realized in such photo-electric transformers which make 520 mcs do not limit a possibility of increasing their efficiency over 20%. It is shown that increase in density of a photo current up to 43.1 mA/cm² leads up to 20.1% to body height of efficiency, and decrease in density of the diode saturation current to 3.1∙10⁻¹⁴ A/cm² - causes body height of efficiency to 20.4%. Simultaneous change of these of a diode characteristic leads to increase of efficiency up to 23.1%. In work physicotechnological approaches for increase in density of a photo current and decrease of density of the diode saturation current in ready photo-electric transformers are offered.Документ Power supply system of a private farming using wind turbine and solar panel(ТОВ "Планета-Прінт", 2021) Veselova, N. V.; Ojo, SolomonДокумент Structural reliability of electrical objects. Theory and examples of solving tasks(2020) Veselova, N. V.; Rezinkin, O. L.Structural reliability of energy objects is one of the most important topics of study in the study of specialty disciplines in the field of Power Engineering, Electrical Engineering and Electromechanics. Students in the specialty "Renewable Energy and High Voltage Engineering and Electrophysics" should have a clear understanding of the nature of structural redundancy issues, be able to evaluate the actual level of reliability through appropriate analysis and know the ways and means of ensuring trouble–free operation of power systems, subsystems and objects of renewable energy.Документ Structure and Properties of the Cadmium Sulfide Films Received by Magnetron Dispersion Method(Сумський державний університет, 2017) Zaitsev, R. V.; Kirichenko, M. V.; Mygushchenko, R. P.; Veselova, N. V.; Khrypunov, G. S.; Dobrozhan, A. I.; Zaitseva, L. V.For the purpose of creation of the economic, suitable for large-scale application technology of formation of a layer of wide-scale "window", for thin-film photo-electric converters on the basis of sulfide and telluride of cadmium the pilot studies of temperature effect of a deposition of the films of sulfide of cadmium received by method of magnetron dispersion on a direct current on their optical properties and crystalline structure were conducted. By method of a two-channel optical spectroscopy it is established that a deposition of films of sulfide of cadmium at a temperature of 160 °C allows to form layers with a width of forbidden region of 1,41 eV that approaches value, characteristic of monocrystals, and the density of the photon flux passing through a cadmium sulfide layer in a spectral interval of a photosensitivity of telluride of cadmium at the level of 37,0 W·nm·cm².Документ The Сadmium Telluride Thin Films for Flexible Solar Cell Received by Magnetron Dispersion Method(Sumy State University, 2017) Zaitsev, R. V.; Khrypunov, G. S.; Veselova, N. V.; Kirichenko, M. V.; Kharchenko, M. M.; Zaitseva, L. V.For the purpose of creation of thin-film photoelectric converters on the basis of sulfide and telluride of cadmium the pilot studies of process of magnetron dispersion on a direct current of telluride of cadmium and influence of the modes of magnetron dispersion on crystalline structure of films of CdTe are conducted. CdTe films for basic layers of sheet photoelectric converters on flexible polyimide substrate by the method of magnetron dispersion on a direct current are received for the first time. It is experimentally shown that "chloride" processing of the received layers of telluride of cadmium leads to transformation of metastable hexagonal modification of telluride of cadmium in stable cubic. At the same time at the expense of the eutectic recrystallization body height of the sizes of areas of a coherent dispelling much and decrease by 1,5 times of level of microstrains is observed.