## Abbreviations and Symbols \begin{tabular}{l l} MRAS & Model Reference Adaptive System \\ IM & Induction Motor \\ DFOC & Direct Field Oriented Control \\ DTC & Direct Torque Control \\ VSI & Voltage Source Inverter \\ \(p\) & Active Power \\ \(Q\) & Reactive Power \\ \(\mathbf{u_{s}}\) & Stator Voltage Vector \\ \(\mathbf{i_{s}}\) & Stator Current Vector \\ \(\mathbf{i_{r}}\) & Rotor Current Vector \\ \(\mathbf{\up_{s}}\) & Stator Electromagnetic Flux Vector \\ \(\mathbf{\psi_{r}}\) & Rotor Electromagnetic Flux Vector \\ \(\mathbf{\omega_{m}}\) & Rotational Shaft Speed \\ \(t_{e}\) & Electromagnetic Torque \\ \(t_{l}\) & Load Torque \\ \(R_{s}\) & Stator Resistance \\ \(R_{r}\) & Rotor Resistance \\ \(L_{s}\) & Stator Inductance \\ \(L_{r}\) & Rotor Inductance \\ \(L_{m}\) & Magnetizing Inductance \\ \(p_{b}\) & Number of Pole Pairs \\ \(J\) & Shaft Inertia \\ \(\varepsilon_{P}\) & Estimation Error of the Active Power \\ \(\varepsilon_{Q}\) & Estimation Error of the Reactive Power \\ \(K_{PR_{R}}\) & Coefficient of the Proportional Term in the Stator Resistance Adaptation Mechanism \\ \(K_{JR_{R}}\) & Coefficient of the Integral Term in the Stator Resistance Adaptation Mechanism \\ \(K_{PR_{R}}\) & Coefficient of the Proportional Term in the Rotor Resistance Adaptation Mechanism \\ \(K_{JR_{r}}\) & Coefficient of the Integral Term in the Rotor Resistance Adaptation Mechanism \\ \end{tabular}   
* _[PERSON] (1992)_ _[PERSON] Adaptive Speed Identification for Vector Control of Induction Motors Without Rotational Transducers. IEEE Trans. Ind. Appl._ **1992**_, 28_, 1054-1061. [CrossRef]
* _[PERSON] et al. (2003)_ _[PERSON]; [PERSON]; [PERSON] A stator resistance estimation scheme for speed sensorless rotor flux oriented induction motor drives. IEEE Trans. Energy Convers._ **2003**_, 18_, 476-483. [CrossRef]
* _[PERSON] et al. (2012)_ _[PERSON]; [PERSON]; [PERSON] Sensorless speed control with MRAS for induction motor drive. In Proceedings of the 20 th International Conference on Electrical Machines (ICEM), Marseille, France, 2-5 September 2012. [CrossRef]
* _[PERSON] (1980)_ _[PERSON] Parameter Adaption for the Speed-Controlled Static AC Drive with a Squirrel-Cage Induction Motor. IEEE Trans. Ind. Appl._ **1980**, 1A-16_, 173-178. [CrossRef]
* _[PERSON] et al. (1999)_ _[PERSON], [PERSON]; [PERSON]. Induction motors direct field oriented control with robust on-line tuning of rotor resistance. IEEE Trans. Energy Convers._ **1999**, 14_, 1038-1042. [CrossRef]
* _[PERSON] and [PERSON] (1994)_ _[PERSON]; [PERSON] Robust speed identification for speed-sensorless vector control of induction motors. IEEE Trans. Ind. Appl._ **1994**, 30_, 1234-1240. [CrossRef]
* _[PERSON] et al. (1998)_ _[PERSON]; [PERSON]; [PERSON] Sensorless vector controller for induction motor drives with parameter identification. In Proceedings of the 24 th Annual Conference of the IEEE Industrial Electronics Society (IECON), Aachen, Germany, 31 August-4 September 1998. [CrossRef]
* _[PERSON] et al. (2013)_ _[PERSON]; [PERSON]; [PERSON] Robust stator resistance identification of an IM drive using model reference adaptive system. Energy Convers. Manag._ **2013**, 65, 507-517. [CrossRef]
* _[PERSON] et al. (2014)_ _[PERSON]; [PERSON]; [PERSON] A rotor resistance MRAS estimator for EV induction motor traction drive based on torque and reactive stator power: Simulation and experimental results. In Proceedings of the 2014 International Conference on Electrical Machines (ICEM), Berlin, Germany, 2-5 September 2014. [CrossRef]
* _[PERSON] et al. (2012)_ _[PERSON]; [PERSON]; [PERSON]; [PERSON] A new model reference adaptive controller for four quadrant vector controlled induction motor drives. IEEE Trans. Ind. Electron._ **2012**, 59, 3757-3767. [CrossRef]
* _[PERSON] et al. (2013)_ _[PERSON]; [PERSON]; [PERSON]; [PERSON] A new model reference adaptive formulation to estimate stator resistance in field oriented induction motor drive. In Proceedings of the 39 th Annual Conference of the IEEE Industrial Electronics Society (IECON), Vienna, Austria, 10-13 November 2013.