TY - JOUR T1 - Analytical prediction of optimal split ratio for fractional-slot external rotor PM brushless machines JO - IEEE Transactions on Magnetics PY - 2011/01/01 AU - Shen Y AU - Zhu ZQ ED - DO - DOI: 10.1109/TMAG.2011.2147286 VL - 47 IS - 10 SP - 4187 EP - 4190 Y2 - 2025/01/03 ER -