Abstract
In this paper the solutions for minimizing eddy current losses in permanent magnets and pulsations of the electromagnetic moment in synchronous electric machines with permanent magnets and fractional tooth-coil winding are considered. Several structural designs of these machines with different locations of the magnetic flux barrier in the magnetic core are considered. The studies of the presented designs are carried out by computer simulation methods in the software complex Ansys Maxwell. The research tasks include dynamic analysis of electromagnetic moments and their pulsations, eddy current losses in permanent magnets and distribution of magnetic flux density in the considered design schemes. Based on these criteria, the most effective location of the magnetic barrier is determined. Simulation is carried out both for the motor operating mode and for the generator mode. In addition, the characteristics of the synchronous electric machines with permanent magnets with a fractional tooth-coil winding are also investigated when a magnetic barrier and a ferromagnetic wedge are used simultaneously. A controlled magnetic barrier is proposed to use for minimizing the higher subharmonics without degrading the energy characteristics.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
