TY - JOUR T1 - Optimal Step-Skew Methods for Cogging Torque Reduction Accounting for Three-Dimensional Effect of Interior Permanent Magnet Machines JO - IEEE Transactions on Energy Conversion PY - 2017/03/01 AU - Ge X AU - Zhu ZQ AU - Kemp G AU - Moule D AU - Williams C ED - DO - DOI: 10.1109/TEC.2016.2620476 VL - 32 IS - 1 SP - 222 EP - 232 Y2 - 2025/01/03 ER -