Abstract
Disk electromechanical energy converters are widely used in electric vehicles, pumps, centrifuges, hoists and robotics. They are used in low-speed and high-speed applications. The use of disc electromechanical energy converters as generators is justified in wind power plants, microturbines, portable generator sets, drilling rigs, elevator drives and electric vehicles. The power range of disk electromechanical energy converters currently varies from watt to several megawatts.
The article considered analysis of the scientific and technical literature on disk electric machines. A comparative analysis of the characteristics of disk and cylindrical energy converters is made, as a result of which it was revealed that disk machines with an axial magnetic flux are most suitable for use as servomechanisms and generators where their properties have advantages over cylindrical machines. In this case, disk electric machines, unlike electric machines with a cylindrical rotor, have the same axial dimensions for the same weight and size parameters, which makes it possible to integrate them into various elements of existing systems, that is, in some cases, the disk structure has a higher ergonomics.
The basic design schemes of disk machines such as single-sided and double-sided, slotted and unrestricted, with and without magnetic cores, with internal or external rotors, with surface or internal permanent magnets, like single or modular machines, are presented. A description is given of the structural units of disk machines used in various fields, as well as examples of their commercial implementation. The substantiation of the choice of materials, applied disk electric machines is suggested.
Keywords
Disk type electric machine, axial magnetic flux, permanent magnets, construction overview.
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