Open AccessInvestigation of influence the slot/pole combinations on the torque performance for synchronous reluctance machine with distributed and concentrated windings
Author(s) -
Amer Salah,
Muhanad Elnour,
Kamal Eldin Idris Elnail
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1601/2/022040
Subject(s) - torque ripple , torque density , torque , electromagnetic coil , rotor (electric) , control theory (sociology) , switched reluctance motor , magnetic reluctance , stator , reluctance motor , engineering , stall torque , damping torque , stack (abstract data type) , direct torque control , mechanical engineering , computer science , magnet , electrical engineering , physics , voltage , control (management) , artificial intelligence , induction motor , thermodynamics , programming language
This paper explores the electromagnetic performance comparison of three different types of synchronous reluctance machines. The investigated machines including, conventional full pitch distributed winding (24 slots/4 poles), an integer slot concentrated nonoverlapping winding (12 slots/4 poles), and fractional slot concentrated nonoverlapping winding (15 slots/8 poles). A finite element analysis JMAG Designer is used to validate the performance for all machines, and have been employed for the optimisation process to improve the torque density as well as to minimise torque ripple. Meanwhile, the current density, slot filling factor and specific dimensions, viz., stator outer diameter, stack length and air gap are designed to be constant. The result shows that for a DW-SynRM, a high value of average torque is achieved, and the torque ripple is lower. The result also demonstrates that the FSCW-SynRM can reach a low torque oscillation. Meanwhile, the ISCW-SynRM exhibit a high reluctance torque, but the torque ripple is a big challenge. On the whole, the distributed winding machine has the best performance compared to concentrated winding machines.