Кафедра "Загальна електротехніка"

Постійне посилання колекціїhttps://repository.kpi.kharkov.ua/handle/KhPI-Press/2838

Офіційний сайт кафедри http://web.kpi.kharkov.ua/ze

Кафедра "Загальна електротехніка" заснована в 1931 році на базі електротехнічного факультету.

Курс електротехніки як самостійної дисципліни першим почав читати Клобуков Микола Петрович ще в 1892 році. Першим завідувачем кафедри був професор Копняєв Павло Петрович.

Кафедра входить до складу Навчально-наукового інституту енергетики, електроніки та електромеханіки Національного технічного університету "Харківський політехнічний інститут" .

У складі науково-педагогічного колективу кафедри працюють: 2 доктора технічних наук, 5 кандидатів технічних наук; 2 співробітника мають звання професора, 3 – доцента.

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20191

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Автор: search.filters.author.Bolyukh, V. F.Ключові слова: search.filters.subject.efficiency

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  • Ескіз
    Документ
    Influence of geometrical parameters of the inductor and armature on the indicators of a linear pulse electromechanical converter of an electrodynamic type
    (National Technical University "Kharkiv Polytechnic Institute", 2019) Bolyukh, V. F.; Kashanskij, Yu. V.; Schukin, I. S.
    Purpose. The aim of the paper is to study the influence of geometrical parameters, namely, the number of layers and the cross section of the copper tire of the inductor and the armature coils on the power and speed indicators of a linear pulse electromechanical converter (LPEC) of an electrodynamic type. Methodology. On the basis of the developed chain mathematical model, recurrent relations are obtained for the calculation of interconnected electromagnetic, mechanical and thermal processes of LPEC of an electrodynamic type. The effect of the thickness of a square copper tire and the number of its layers in the inductor and armature coils on the characteristics and characteristics of electrodynamic LPEC is investigated. It is these parameters that determine the number of turns and the axial height of the coils with limited radial dimensions. Results. The influence of the geometrical parameters of the inductor and the armature coils with limited radial dimensions on the electrical and mechanical characteristics of LPEC of an electrodynamic type is established. It has been established that with an increase in the thickness of a rectangular cross-section of copper tire from 1 to 2.5 mm, an increase in the amplitude and pulse of electrodynamic forces (EF) occurs. However, the maximum speed of the armature is the highest at LPEC wound with a 1.5 mm thick tire. The highest efficiency value is demonstrated by LPEC, in which the inductor and armature coils are wound with a 2 mm thick tire. With an increase in the number of layers of the inductor coil tire, the amplitude of the EF decreases significantly, and the magnitude of the EF pulse decreases slightly. As a result, the maximum armature speed, efficiency and temperature rise of the coils are reduced. Originality. It is established that the largest amplitude of the EF is realized in LPEC with the minimum number of layers of tires of the inductor and armature coils. The largest value of the pulse EF occurs when the maximum number of layers of the inductor and the armature. In this case, the largest values of the amplitude and pulse of the EF occur under the condition that the number of tire layers of the inductor and the armature coils are the same. Practical value. It has been established that the greatest efficiency 21.82 % is realized in LPEC, in which the number of tire layers is 2 mm thick with inductor and armature coils are 4. A catapult model for launching an unmanned aerial vehicle was made and tested on the basis of LPEC of an electrodynamic type.