TY - CONF T1 - Analytical optimization and comparison of torque densities between permanent magnet and electrically excited machines JO - Proceedings of the 20th International Conference on Electrical Machines PY - 2012/01/01 AU - Chu WQ AU - Zhu ZQ AU - Chen JT ED - DO - DOI: 10.1109/ICElMach.2012.6350027 SP - 1192 EP - 1198 Y2 - 2024/10/23 ER -