TY - JOUR T1 - Difference in unbalanced magnetic force of fractional-slot PM machines between interna and external rotor topologies JO - China Electrotechnical Society Transactions on Electrical Machines and Systems PY - 2017/07/11 AU - Wu LJ AU - Zhu ZQ AU - Fang YT AU - Huang XY ED - DO - DOI: 10.23919/tems.2017.7961337 VL - 1 IS - 2 SP - 154 EP - 163 Y2 - 2024/10/23 ER -