TY - JOUR T1 - Average torque separation in permanent magnet synchronous machines using frozen permeability JO - IEEE Transactions on Magnetics PY - 2013/01/01 AU - Chu WQ AU - Zhu ZQ ED - DO - DOI: 10.1109/TMAG.2012.2225068 VL - 49 IS - 3 SP - 1202 EP - 1210 Y2 - 2025/01/03 ER -