Comparative analysis of salient pole and flux barrier rotor for synchronous reluctance machines including flux weakening range

• Main Authors: Matthias Hofer, Mario Nikowitz, Manfred Schrödl
• Format: Article
• Language: English
• Published: Wiley 2019-04-01
• Series: The Journal of Engineering
• Subjects: rotors; machine theory; reluctance machines; stators; magnetic flux; permanent magnet machines; finite element analysis; comparative analysis; flux barrier rotor; synchronous reluctance machines; flux weakening range; synchronous reluctance machine types; electrical traction applications; flux barrier machine; carbon fibre-reinforced plastic bandage; salient pole machine; existing induction machine; finite element simulation; base speed range; machine designs; flux weakening operation
• Online Access: https://digital-library.theiet.org/content/journals/10.1049/joe.2018.8210

Here, synchronous reluctance machine types related to electrical traction applications are investigated including flux weakening range. A flux barrier (FB) machine with a carbon fibre-reinforced plastic bandage and a salient pole machine are designed by finite element analysis and built up as prototype. Both rotors are implemented in a stator of an existing induction machine. A comparative analysis is presented using finite element simulation as well as experimental results. Measurements in the base speed range confirm the machine designs. An analysis of the flux weakening operation at high speeds show the possible limitations by increasing harmonics with the given single-layer winging. The implementation of a short pitched winding is an approach to improve harmonic behaviour of the salient pole (SP) machine at high rotational speeds.