Temat: winding - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Induction machine with pole-changing winding for turbomechanisms
Autorzy:: Bobojanov, Makhsud
Powiązania:: https://bibliotekanauki.pl/articles/24202741.pdf
Data publikacji:: 2023
Wydawca:: Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:: basic scheme of winding
differential leakage factor
Görges polygone
magnetizing forces
pole-changing winding
pole amplitude modulation
winding factor
Opis:: This paper investigates the possibilities for developing a pole-changing winding with a pole ratio of 3:4 with improved electromagnetic properties. Such a winding can be used in two-speed induction motors for turbo mechanisms. The scheme of the new winding was obtained by using a discretely-specified spatial function method developed at the Tashkent State Technical University. A comparison of the parameters obtained for a similar winding received by the pole amplitude modulation method has been presented. Design of a new motor with a new winding is developed based on the standard induction motor. The paper presents results of laboratory tests, too.
Źródło:: Archives of Electrical Engineering; 2023, 72, 2; 415--426
1427-4221
2300-2506
Pojawia się w:: Archives of Electrical Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Influence of winding and shaft cooling on the thermal characteristics of a traction machine for heavy-duty distribution transport
Autorzy:: Groschup, Benedikt
Butterweck, Daniel
Hameyer, Kay
Powiązania:: https://bibliotekanauki.pl/articles/27309937.pdf
Data publikacji:: 2023
Wydawca:: Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:: cooling
thermal design
winding cooling
Opis:: This paper studies the influence of different cooling technologies on the power density of a traction machine for heavy-duty distribution transport. A prototype induction machine is built with a housing cooling jacket, potted end-windings, entire winding cooling, and shaft cooling. Electromagnetic finite element and thermal lumped-parameter models are parameterized and verified using test bench measurements. The influence of each thermal resistance along the heat paths is studied and discussed. The results are used for studying different cooling technologies. The results indicate an improvement of the continuous power density up to 108% using shaft cooling and up to 15.6% using entire winding cooling.
Źródło:: Archives of Electrical Engineering; 2023, 72, 3; 769--784
1427-4221
2300-2506
Pojawia się w:: Archives of Electrical Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Analysis and effect of static eccentricity fault on performance indicators of a synchronous reluctance motor
Autorzy:: Idoko, Emmanuel
Umoh, Gideon David
Obe, Pauline Ijeoma
Mama, Benjamin Okwudili
Obe, Emeka Simon
Powiązania:: https://bibliotekanauki.pl/articles/27309936.pdf
Data publikacji:: 2023
Wydawca:: Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:: degree of eccentricity
faults
finite element method
inductances
static eccentricity
synchronous reluctance motor
winding function
Opis:: Fault diagnosis and condition monitoring of synchronous machines running under load is a key determinant of their lifespan and performance. Faults such as broken rotor bars, bent shafts and bearing issues lead to eccentricity faults. These faults if not monitored may lead to repair, replacement and unforeseen loss of income. Researchers who attempted to investigate this kind of machine stopped at characterizing and deduced ways, types and effects of rotor eccentricity fault on the machine inductances using the winding function method. A modified closed-form analytical model of an eccentric synchronus reluctance motor (SynRM) is developed here taking into cognizance the machine dimensions and winding distribution for the cases of a healthy and unhealthy SynRM. This paper reports the study the SynRM under static rotor eccentricity using the developed analytical model and firming up the model with finite element method (FEM) solutions. These methods are beneficial as they investigated and presented the influence of the degrees of static eccentricity on the machine performance indicators such as speed, torque and the stator current and assess the extent to which the machine performance will deteriorate when running with and without load. The results show that static eccentricity significantly affects the machine’s performance as the degree of eccentricity increases.
Źródło:: Archives of Electrical Engineering; 2023, 72, 3; 829--848
1427-4221
2300-2506
Pojawia się w:: Archives of Electrical Engineering
Dostawca treści:: Biblioteka Nauki

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