Thermal Condition and Losses in Ultra-High-Speed Generators
Abstract: In this paper
ultra-high-speed generators operated in intermittent periodic and short-term
mode were considered. Experimental studies of losses depending on frequencies
in the magnetic core of microelectromechanical energy converters made from
amorphous steel were made. Dependence of the flux density from the temperature
in the air gap of the experimental layout of high-coercivity permanentmagnets
was obtained. Computer modeling of the magnetic field distribution on the cross
section of thestator magnetic core of microelectromechanical energy converters
were made in the software packageAnsoft Maxwell. Dependence of friction losses
of the rotor around the air from the air temperature wasobtained. Comparisons
of losses and efficiency of microelectromechanical energy converters in a coldstate
and after 10 minutes of operation without cooling were made.
Keywords: ultra-high-speed
generators, thermal state, microelectromechanical energy converter, temperature
dependence
Author: Flur Ismagilov,
Viacheslav Vavilov, Ruslan Karimov, Denis Gusakov
Journal Code: jptkomputergg170051
