| Title |
A Comparison Study on the Characteristics of Double 3-Phase IPM Motor with 8-poles 48-slots according to Winding Connection |
| DOI |
http://doi.org/10.5207/JIEIE.2021.35.9.016 |
| Keywords |
Dual 3-phase; Fault-tolerant; IPM motor; Winding connection |
| Abstract |
In this paper, characteristic analysis was performed according to the winding connection method of an 8-pole 48-slot IPM motor with a dual inverter system. One 3-phase winding set is connected to a inverter and the other 3-phase winding set is connected to another. With the same rotor structure and same stator, three different types of winding connections for dual 3-phase are proposed. In a winding of type 1 (‘T-1’), the phase coils were placed alternately. In the second type (‘T-2’), the coils of each phase were arranged in half around the circumference. In the the last type (‘T-3’) having 6-phase, phase coils connected to other inverters are placed next to each other so that current angle between two-inverters become 30 degree. For understanding characteristics of IPM with dual 3-phase, the individual torque components are newly presented as equations using the relational expression between flux linkage and torque. By using finite element analysis (FEA), back-elctromotiveforce (EMF), syncrhonous inductance, torque and iron loss were calculated and compared. |