TY - CONF T1 - Sensorless flux-weakening control of permanent magnet brushless machines using third-harmonic back-EMF JO - IEEE International Electric Machines and Drives Conference PY - 2003/01/01 AU - Shen JX AU - Zhu ZQ AU - Howe D ED - VL - 1-3 SP - 1229 EP - 1235 Y2 - 2025/07/14 ER -