AC losses in high frequency electrical machine windings formed from large section conductors

2014 ◽  
Author(s):  
Phil Mellor ◽  
Rafal Wrobel ◽  
Nick Simpson
Keyword(s):  
High Frequency ◽  
Ac Losses ◽  
Electrical Machine ◽  
Large Section

scholarly journals Measurements and Analysis of AC Losses in HTS Windings of Electrical Machine for Different Operation Modes

2021 ◽  
Vol 11 (6) ◽  
pp. 2741
Author(s):  
Sergey Zanegin ◽  
Nikolay Ivanov ◽  
Vasily Zubko ◽  
Konstantin Kovalev ◽  
Ivan Shishov ◽  
...  
Keyword(s):  
Magnetic Field ◽  
High Temperature ◽  
High Temperature Superconductor ◽  
High Temperature Superconductors ◽  
Transport Current ◽  
Operating Conditions ◽  
Ac Losses ◽  
Electrical Machine ◽  
2Nd Generation ◽  
Motor Mode

The article is devoted to the study of losses in devices based on high-temperature superconductors of the 2nd generation. The complexity of the devices under study increases from a single rack coil to a winding assembled from several coils, and finally to an electric machine operating in generator mode. This is the way to experimentally study the behavior of 2nd generation high temperature superconductor (2G HTS) carrying a transport current in various conditions: self-field, external DC, and AC magnetic field. Attention is also paid to the losses in the winding during its operation from the inverter, which simulates the operating conditions in the motor mode of a propulsion system.

High frequency intergranular AC losses in EuBa2Cu3O7ceramics

1992 ◽  
Vol 5 (1S) ◽  
pp. S268-S271 ◽  
Author(s):  
E Nguyen ◽  
D Castello ◽  
J Fontcuberta ◽  
X Obradors
Keyword(s):  
High Frequency ◽  
Ac Losses

AC losses in HTS coils for high-frequency and non-sinusoidal currents

2017 ◽  
Vol 30 (9) ◽  
pp. 095006 ◽  
Author(s):  
B J H de Bruyn ◽  
J W Jansen ◽  
E A Lomonova
Keyword(s):  
High Frequency ◽  
Ac Losses ◽  
Sinusoidal Currents

Investigation of high frequency loss in electrical machine lamination considering skin effect and hysteresis

2020 ◽  
pp. 1-16
Author(s):  
Krzysztof Komęza ◽  
Maria Dems ◽  
Jean-Philippe Lecointe
Keyword(s):  
High Frequency ◽  
Skin Effect ◽  
Electricity Consumption ◽  
Simulation Method ◽  
Electrical Machine ◽  
Higher Harmonics ◽  
Common View ◽  
Core Losses ◽  
International Regulations ◽  
The Common

Reducing induction motor losses is very important because of the fulfilment of increasingly stringent requirements set by international regulations for reducing electricity consumption. Since core losses begin to dominate in motors operating at higher frequencies the exact calculation becomes more and more important. The common view is that losses due to higher harmonics caused by stator and rotor slotting constitute an important part of losses in the motor core. Proper calculation of the core losses requires inclusion both hysteresis and eddy current phenomena. For the hysteresis simulation, method included in package Opera 3D has been used. Using that model it was possible to investigate flux behavior at high frequency like as for higher harmonics field. Next part is focused on practical determining of proper method for higher harmonics losses limitation.

scholarly journals Reduction of Winding AC Losses by Accurate Conductor Placement in High Frequency Electrical Machines

2020 ◽  
Vol 56 (1) ◽  
pp. 183-193 ◽  
Author(s):  
Anuvav Bardalai ◽  
David Gerada ◽  
Dmitry Golovanov ◽  
Zeyuan Xu ◽  
Xiaochen Zhang ◽  
...  
Keyword(s):  
High Frequency ◽  
Electrical Machines ◽  
Ac Losses
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