TY - JOUR T1 - Simplified EKF based sensorless direct torque control of permanent magnet brushless AC drives JO - International Journal of Automation and Computing PY - 2004/10/01 AU - Liu Y AU - Zhu Z AU - Howe D ED - DO - DOI: 10.1007/s11633-004-0035-4 PB - Springer Science and Business Media LLC VL - 1 IS - 1 SP - 35 EP - 41 Y2 - 2025/01/03 ER -