- 21. Mathematical modeling of power supply reliability at low voltage quality
- (Content №2 2021)
- ... processes, processes of transformation, transmitting and consumption of electrical energy in power systems of 6 and 0.4 kV with non-sinusoidal voltage in it. The subjects of the research are reliability ...
- Created on 29 April 2021
- 22. Improvement of the membrane-free electrolysis process of hydrogen and oxygen production
- (Content №1 2021)
- ... values of the voltage of the oxidation and reduction of the iron electrode active mass, as well as the voltage on the half-cycle of hydrogen evolution during the electrolysis of water, are calculated. ...
- Created on 05 March 2021
- 23. Mathematical model for forecasting the process of electric power generation by photoelectric stations
- (Content №1 2021)
- ... stations to track changes in voltage levels in the connection nodes. Findings. Mathematical models for forecasting the electricity generation of photovoltaic stations for different time ranges are built. ...
- Created on 05 March 2021
- 24. Method for optimization of switching frequency in frequency converters
- (Content №1 2021)
- ... in frequency converters and autonomous voltage inverters, the load of which is an asynchronous electric motor. The methodology is based on determining the dependences of static and dynamic power losses ...
- Created on 05 March 2021
- 25. Integrated system of modular power supply and multilevel control of brushless dc motor for electric vehicles
- (Content №6 2020)
- ... Abstract: Purpose. Development of a multi-purpose control algorithm for a cascaded semiconductor inverter to provide a six-step switching of phase voltages of a brushless DC (BLDC) motor, multilevel regulation ...
- Created on 22 December 2020
- 26. Influence of pulse excitation on electromechanical indicators of a linear pulse converter of electrodynamic type
- (Contens №3 2020)
- ... damped current pulse, while the smallest ones – upon excitation by an aperiodic pulse. The LPEC excitation by an aperiodic current pulse with recharge allows the use of a reduced charge voltage for rechargeable ...
- Created on 02 July 2020
- 27. Calculation of static and dynamic losses in power IGBT transistors by polynomial approximation of basic energy characteristicss
- (Contens №2 2020)
- ... Findings. The proposed calculation method allows the Matlab software to determine with sufficient accuracy the static and dynamic losses in power IGBT-transistors and reverse diodes for any type of semiconductor converter with any control law. The simulation confirms the accuracy of the proposed technique for calculating power losses in semiconductor converters. In addition, the presented method allows determining not only the power loss, but also the temperature of the power transistor to prevent it from failing. The results of the approximation of the characteristics of high-voltage power IGBT-transistors manufactured by Mitsubishi are presented. ...
- Created on 10 May 2020
- 28. Contens 01 2020
- (Content №1 2020)
- ... current based on a stand-alone voltage inverter 89 M. Yo. Fedoriv, I. V. Hlad, I. D. Halushchak, І. М. Mykhailiv.DC link power supply system of electric ...
- Created on 11 March 2020
- 29. DC link power supply system of electric drill
- (Content №1 2020)
- ... текст / full article Abstract: Purpose. Selection of a rational power supply system for an electric drill based on an assessment of active power and voltage losses in a cable line. Methodology. ...
- Created on 10 March 2020
- 30. A complex source of electrical energy for three-phase current based on a stand-alone voltage inverter
- (Content №1 2020)
- ... one autonomous voltage inverter, to establish operating modes using zero combinations of inverter keys and to formulate a condition for energy transfer to an electromechanical converter from an additional ...
- Created on 10 March 2020
- 31. Earth fault protection for compensated electric networks based on frequency filters
- (Content №1 2020)
- ... the zero sequence voltage and currents. Methodology. The methods of mathematical modeling and analysis of transients in compensated electric networks of 6‒35 kV, Fourier transform and Goertzel ...
- Created on 10 March 2020
- 32. On the efficiency factor for induction motor at non-sine supply
- (Content №1 2020)
- ... for calculating the efficiency factor for the induction motor with sine supply when connecting it to semiconductor converters of voltage or frequency. The task involves determination of influence of the ...
- Created on 10 March 2020
- 33. Innovative technique for evaluating electric power distortion in cable transmission line
- (Content №1 2020)
- ... текст / full article Abstract: Purpose.The rationale for use of electrical power components produced by current and voltage harmonics with different frequencies to assess its impact on ...
- Created on 10 March 2020
- 34. The perfection of motivational model for improvement of power supply quality with using the one-way analysis of variance
- (Contens №6 2019)
- ... ISBN-13: 978-1943450039, ISBN-10: 194345003X. 10. Methodical instructions for the accounting and analysis in the power systems of the technical state of distribution networks with voltage 0.38-20 ...
- Created on 23 December 2019
- 35. Active single-phase four-quadrant rectifier with improved hysteresis modulation algorithm
- (Electrical Complexes and Systems)
- ... in active voltage-source rectifier. 2018 IEEE 3 rd International Conference on Intelligent Energy and Power Systems (IEPS) (pp. 253-258). DOI: 10.1109/IEPS.2018.8559514. 11. Zhao, G. I., ...
- Created on 26 October 2019
- 36. Contens 04 2019
- (Contens №4 2019)
- ... of the energy efficiency of a two-level voltage source inverter in the overmodulation mode 68 Power Supply Technologies 73 ...
- Created on 01 September 2019
- 37. Methodical approaches to distribution of resources of an energy supplying company to reduce operational losses
- (Economy and Management)
- ... Application of voltage of 20 kV for distribution electrical networks. Vestnik NGEI, (4), 6-9. 2. Kostetska, N.I. (2014). Methodological Approaches to Cost Planning in the Enterprise. In ...
- Created on 19 August 2019
- 38. A voltage loss preliminary estimation in ac busbars
- (Power Supply Technologies)
- ... losses and voltage drops in three-phase systems of power networks. Improvement of the method of preliminary voltage drop estimation in these systems of power networks, which allows taking into account ...
- Created on 19 August 2019
- 39. Analysis of the energy efficiency of a two-level voltage source inverter in the overmodulation mode
- (Electrical Complexes and Systems)
- ... Abstract: Purpose. Increasing the output power and ensuring maximum sinusoidality of output current in a two-level voltage source inverter by implementing the overmodulation mode. Methodology. Simulation ...
- Created on 19 August 2019
- 40. Using a phase-differential busbar protection for switchgears of power system facilities
- (Electrical Complexes and Systems)
- ... Bucharest PowerTech. Bucharest, Romania, DOI: 10.1109/PTC.2009.5282019. 8. Pereira, C.E., & Zanetta, L.C. (2004). Fault location in transmission lines using one-terminal postfault voltage ...
- Created on 19 August 2019