Wyniki wyszukiwania - BazTech

Ograniczanie wyników

Znaleziono wyników: 3

Liczba wyników na stronie

Wyniki wyszukiwania

Sortuj według:

Ogranicz wyniki do:

Improved Matlab/Simulink model of dual three-phase fractional slot and concentrated winding PM motor for EV applied brushless DC drive

Shchur Ihor, Mazur Damian, Makarchuk Oleksandr, Bilyakovskyy Ihor, Turkovskyi Valentyn, Kwiatkowski Bogdan, Kalandyk Dawid

Archives of Control Sciences

2022

Vol. 32, No. 4

677--707

The development of electric vehicles (EV) necessitates the search for new solutions for configuring powertrain systems to increase reliability and efficiency. The modularity of power supplies, converters, and electrical machines is one such solution. Among modular electric machines, dual three-phase (DTP) motors are the most common in high-power drives. To simplify low and medium power drives for EVs based on DTP PM motor, it is proposed to use a BLDC drive and machine of the simplest design - with concentrated windings and surface mounted PMs on the rotor. To study and create such drives, an improved mathematical model of DTP PM machine was developed in this work. It is based on the results of 2D FEM modeling of the magnetic field. According to the developed method, the dependences of the self and mutual inductances between all phase windings from the angle of rotor position and loads of different motor modulus were determined. Based on these inductances, the circuit computer model of DTP PM machine was created in the Matlab/Simulink. It has a high simulation speed and a high level of adequacy, which is confirmed by experimental studies with a mock-up sample of the electric drive system.

Multivoltaic GaSe clathrate as new hybrid functional nanostructure

Ivashchyshyn Fedir, Pidluzhna Anna, Calus Dariusz, Hryhorchak Orest, Chabecki Piotr, Makarchuk Oleksandr

Bulletin of the Polish Academy of Sciences. Technical Sciences

2021

Vol. 69, nr 2

art. no. e136726

The electrical properties and behaviour in constant magnetic field of fourfold expanded GaSe matrix intercalated with SmCl 3 guest were investigated by means of impedance spectroscopy and cyclic voltammetry. It was determined that the synthesized GaSe< SmCl 3> clathrate of 4-fold expansion demonstrates the coexistence of mechanisms of generation, transformation and accumulation of electric energy on a quantum level. These mechanisms are driven from external sources of magnetic, thermal and electric field without Faradaic reactions. Therefore, investigated GaSe< SmCl 3> structure is of great attraction in multivoltaics as a prototype of new class of materials. Quantum mechanical model of electro motive force of spin nature is proposed. The main focus of work lies in the prospects of synthesized clathrates for the development of power nanosources and gyrator-free delay nanolines controlled by means of magnetic field.

Analysis of interaction of forces of working elements in electromagnetic mill

Całus Dariusz, Makarchuk Oleksandr

Przegląd Elektrotechniczny

2019

R. 95, nr 12

64--69

The paper is devoted to the analysis of the operating modes of an electromagnetic mill, a device designed for grinding or mixing various substances, which occurs due to the interaction of these substances with moving ferromagnetic working elements. The factors impacting this force interaction are revealed. One of the possible structural solutions of the inductor of such a mill is given. The dependences of the projections of the equatorial force vector applied to the center of the mass of the working element are calculated from the above factors, in particular, from the phase of the resulting magnetomotive force of the inductor, the angular and radial coordinates of the location of the working element, its dimensions and the angle of rotation around its own axis. The results and conclusions obtained during this study make it possible to choose the method of mathematical formalization of the description of the force interaction of mill elements in a rotating magnetic field.

W publikacji zaprezentowano analizę stanów pracy młyna elektromagnetycznego - urządzenia służącego do rozdrabniania i mieszania różnych substancji. Opisano czynniki, które wpływają na współdziałanie siłowe mieszanych substancji z ruchomymi ferromagnetycznymi mielnikami. Ponadto przedstawiono jedno z możliwych rozwiązań konstrukcyjnych induktora tego typu młyna. W artykule zawarto również zależności rzutów wektora wypadkowej siły, przyłożonej do środka ciężkości mielnika od fazy wypadkowej SMM induktora, promieniowych i kątowych współrzędnych położenia mielnika, jego wielkości i kąta obrotu wokół w łasnej osi. Wyniki i wnioski uzyskane dzięki tym badaniom umożliwiły wybranie sposobu sformalizowania matematycznego oddziaływania siłowego mielników z wirującym polem magnetycznym.