TY - JOUR T1 - Direct torque control of permanent-magnet synchronous machine drives with a simple duty ratio regulator JO - IEEE Transactions on Industrial Electronics PY - 2014/10/01 AU - Ren Y AU - Zhu ZQ AU - Liu J ED - DO - DOI: 10.1109/TIE.2014.2300070 VL - 61 IS - 10 SP - 5249 EP - 5258 Y2 - 2025/01/03 ER -