Кафедра "Електричні станції"

Постійне посилання колекціїhttps://repository.kpi.kharkov.ua/handle/KhPI-Press/6884

Офіційний сайт кафедри http://sites.kpi.kharkov.ua/es

Від 1950 року кафедра має назву "Електричні станції", первісна назва – кафедра "Центральні електричні станції".

Кафедра "Центральні електричні станції" була створена в 1930 році. Першим завідувачем кафедри був призначений професор Берлін Сергій Миколайович. Підготовка інженерів-електриків для роботи на електричних станціях почалася в Харкові від часу відкриття, в 1921 році, електротехнічного факультету. За роки своєї роботи кафедра випустила понад 4000 інженерів-електриків, які плідно працюють в енергетиці.

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

У складі науково-педагогічного колективу кафедри працюють: 7 кандидатів технічних наук; 5 співробітників мають звання доцента, 1 – старшого наукового співробітника.

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Фільтри

2018 - 20194

Налаштування

Кінцева дата: 2019ORCID: search.filters.orcid.https://orcid.org/0000-0001-7038-3172

Результати пошуку

Зараз показуємо 1 - 4 з 4
  • Ескіз
    Документ
    The Increase in Efficiency of the Modes Power Resources Consumptions of the Processing Equipment of the Enterprises of Oil-processing Industry
    (2018) Shokarov, Dmytro; Lazurenko, Oleksandr; Cherkashyna, Halyna; Chorna, Viktoria
    The technique of static planning of an experiment for creation of mathematical model of energy consumption of technological plants of the enterprise of oil industry is offered that has allowed to analyze effectively the factors which influence the production and to optimize the expenses, to reduce the prime cost and to increase the overall performance of the enterprise in general.
  • Ескіз
    Документ
    The Formed Autonomous Source for Power Supply of Single-Phase Consumers on the Basis of the Three- Phase Asynchronous Generator
    (2018) Chenchevoi, Volodymyr; Zachepa, Iurii; Chornyi, Oleksii; Zachepa, Nataliia; Ogar, Vita; Shokarov, Dmytro
    The work of a three-phase autonomous asynchronous generator with controlled capacitive excitation in asymmetric loading conditions is considered. The quality parameters of output voltage of a three-phase autonomous asynchronous generator operating on single-phase electric power consumers are investigated. The application of the phase-byphase adjusting system of the generator output voltage with relay control of capacitive excitation is based, providing the desired amount of generated electricity in all operation modes, in particular when single-phase consumers are connected, by balancing the output voltage and increasing its control range.
  • Ескіз
    Документ
    Дослідження енергоефективності будівлі КЗ "Харківська спеціалізована школа №11"
    (Кременчуцький національний університет ім. Михайла Остроградського, 2019) Шокарьов, Дмитро Анатолійович; Панасенко, І. С.
  • Ескіз
    Документ
    Development of the converter structure that enables power supply to traction induction motors of mine electric locomotives from different levels of voltage
    (PC Technology Center, 2018) Lazurenko, O.; Shokarov, D. A.; Chorna, V.; Melnyk, O.; Cherkashyna, H. I.; Volynets, V.; Antsyferova, O. O.
    We have proposed an adjustable structure of the converter of energy of electric drive in the electrotechnical complex of a mine electric locomotive from power sources with different voltage levels ‒ from a contact network and a battery of traction accumulators. A characteristic feature of the converter is the presence of inverter units that can be connected either sequentially or in parallel. When powered by a low­voltage source, inverter units are connected in parallel over the entire range of change in the output voltage. When powered by a high voltage source, inverter units are connected sequentially in the range of low output voltages and in parallel in the range of high output voltages. Such an approach makes it possible to align the power voltage levels of traction asynchronous motors of a mine electric locomotive at a lower level. The expected alignment of voltage levels is carried out at a lower level compared to a standard circuit of the three­phase bridge autonomous inverter and is achieved by controlling the paired bridges in the power circuit of traction induction motors. Given this, the frequency of voltages of width­pulse modulation does not change, which is important for the process of reducing dynamic losses of power in the drive’s elements. It has been confirmed that an increase in the output voltage distortion coefficient in the IGB­transistors of the inverter with the minimal level of energy losses in the electric drive’s elements is achieved by modulating the voltage at a constant switching frequency at different voltage levels. We have proven the fact that the best indicators for the harmonic coefficient were obtained at frequencies about 30 Hz, which are the working ones, so the converter operating mode is most effective at these frequencies. The result of analysis of the classical scheme of the inverter has revealed that increasing the frequency of pulse­width modulation by three times significantly increases electrical losses in the windings of traction electric motor. In the proposed circuit of the voltage inverter of engine’s power, at leveling the voltage at low level, there is no need to increase the frequency of pulse­width modulation, which does not lead to a growth in the electrical losses in a traction motor.