TY - GEN
T1 - Design considerations and parameter optimization of stator wound field synchronous machines based on magnetic the gear effect
AU - Jia, Shaofeng
AU - Qu, Ronghai
AU - Li, Jian
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2015/10/27
Y1 - 2015/10/27
N2 - Stator wound field synchronous machines (SWFSMs) are gaining more and more research and application interest recently due to the absence of expensive rare earth magnet materials. These machines are characterized by a doubly salient structure, and both the DC field winding and the three phase armature windings are located in the stator. In this paper, taking the basic structure of stator DC excited vernier reluctance machine, which is one type of SWFSM, the design of SWFSMs are studied in detail semi-analytically, by finite element analysis (FEA), and also validated by experiment. First, the effects of stator/rotor slot combinations on performances, including cogging torque, torque and torque ripple, voltage fluctuation of the DC winding are analyzed and compared. Then, the back-EMF, torque and power factor expressions in terms of the geometrical variables are proposed. Also, a 12-stator-slot, 11-rotor-slot machine as an example, the design parameters, including the split ratio, the air gap length, the proportion of the armature and field coil turns in one stator slot, and the stator/rotor tooth arc combination are optimized. The optimization results show that these design parameters have a various influence on electromagnetic performance, and the designers should select the design parameters comprehensively.
AB - Stator wound field synchronous machines (SWFSMs) are gaining more and more research and application interest recently due to the absence of expensive rare earth magnet materials. These machines are characterized by a doubly salient structure, and both the DC field winding and the three phase armature windings are located in the stator. In this paper, taking the basic structure of stator DC excited vernier reluctance machine, which is one type of SWFSM, the design of SWFSMs are studied in detail semi-analytically, by finite element analysis (FEA), and also validated by experiment. First, the effects of stator/rotor slot combinations on performances, including cogging torque, torque and torque ripple, voltage fluctuation of the DC winding are analyzed and compared. Then, the back-EMF, torque and power factor expressions in terms of the geometrical variables are proposed. Also, a 12-stator-slot, 11-rotor-slot machine as an example, the design parameters, including the split ratio, the air gap length, the proportion of the armature and field coil turns in one stator slot, and the stator/rotor tooth arc combination are optimized. The optimization results show that these design parameters have a various influence on electromagnetic performance, and the designers should select the design parameters comprehensively.
KW - Cogging torque
KW - DC winding voltage fluctuation
KW - split ratio
KW - stator DC field winding
KW - stator wound field
KW - synchronous machines
KW - torque ripple
KW - vernier machines
UR - https://www.scopus.com/pages/publications/84963620302
U2 - 10.1109/ECCE.2015.7310391
DO - 10.1109/ECCE.2015.7310391
M3 - 会议稿件
AN - SCOPUS:84963620302
T3 - 2015 IEEE Energy Conversion Congress and Exposition, ECCE 2015
SP - 5195
EP - 5202
BT - 2015 IEEE Energy Conversion Congress and Exposition, ECCE 2015
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 7th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2015
Y2 - 20 September 2015 through 24 September 2015
ER -