TY - CONF T1 - Influence of slot and pole number combination on radial force and vibration modes in fractional slot PM brushless machines having single- and double-layer windings JO - IEEE Energy Conversion Congress and Exposition, ECCE 2009 PY - 2009/01/01 AU - Zhu ZQ AU - Xia ZP AU - Wu LJ AU - Jewell GW ED - DO - DOI: 10.1109/ECCE.2009.5316553 SP - 3443 EP - 3450 Y2 - 2024/12/25 ER -