Abstract
This paper describes an efficient axial flux arrangement of the four quadrant rotary converter for hybrid electric vehicles. The design of the axial flux wound stator and both axial flux squirrel cage rotors is based on the arrangement of radial air gap induction motor and permanent magnet synchronous motor. The method of constant magnetic circuit volume is utilized for dimensions conversion, which results into basic dimensions of stator and rotor discs in axial flux conception. This allows the creation of real 3D models in the CAD application. Finally, the finite element simulation of magnetic flux density and magnetic flux vector map in the area of axial flux stator pack are presented in the concluding part of this paper.
Highlights
IntroductionThe maximal efficiency of the internal combustion engine (ICE) used in conventional vehicles is due to Carnot’s cycle approximately bounded above to 40 %
The maximal efficiency of the internal combustion engine (ICE) used in conventional vehicles is due to Carnot’s cycle approximately bounded above to 40 %. Such efficiency can only be reached in a very small torquespeed area, which leads to the idea of full torque and speed control in hybrid electric vehicle (HEV) conceptions aimed at considerable power savings
Another advantage of axial flux conception is in the possibility of air gap width adjustment, which allows the optimization of magnetic field depth penetration into the squirrel cage inner rotor
Summary
The maximal efficiency of the internal combustion engine (ICE) used in conventional vehicles is due to Carnot’s cycle approximately bounded above to 40 %. Such efficiency can only be reached in a very small torquespeed area, which leads to the idea of full torque and speed control in hybrid electric vehicle (HEV) conceptions aimed at considerable power savings. Many of today’s used HEV conceptions are based on the seriesparallel hybrid arrangement, combining together the advantages of both essential arrangements [1]. The main task of here presented four quadrant axial flux rotary converter (AFRC) is to keep the ICE
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