TY - CONF T1 - Torque ripple reduction for 6-stator/4-rotor-pole variable flux reluctance machines by using harmonic field current injection JO - 2016 IEEE Energy Conversion Congress and Exposition (ECCE) PY - 2016/01/01 AU - Lee B AU - Zhu ZQ ED - DO - DOI: 10.1109/ecce.2016.7855530 PB - IEEE Y2 - 2025/01/03 ER -