Please use this identifier to cite or link to this item: https://doi.org/10.1109/TPEL.2006.876823
Title: Dynamic control of torque in overmodulation and in the field weakening region
Authors: Tripathi, A.
Khambadkone, A.M. 
Panda, S.K. 
Keywords: Constant power speed range (CPSR)
Directtorque control (DTC)
Field-weakening
Issue Date: Jul-2006
Source: Tripathi, A., Khambadkone, A.M., Panda, S.K. (2006-07). Dynamic control of torque in overmodulation and in the field weakening region. IEEE Transactions on Power Electronics 21 (4) : 1091-1098. ScholarBank@NUS Repository. https://doi.org/10.1109/TPEL.2006.876823
Abstract: At high angular velocity, the induction motor is operated in the field weakening range due to the voltage limit of the inverter. Field oriented vector control (FOC) is unsuitable for this operation due to coupling, non-linearities, and saturation of linear current controllers. A proposed direct torque control space vector modulation (DTC-SVM) scheme using SVM does not use coordinate transforms or current controllers to achieve DTC. Control of the stator flux vector allows for dynamic change in the torque in all regions, including field weakening with the six-step operation. This paper describes the torque control dynamic in the field weakening range, using a step change in stator flux vector magnitude and it's angular velocity. The method is demonstrated experimentally. © 2006 IEEE.
Source Title: IEEE Transactions on Power Electronics
URI: http://scholarbank.nus.edu.sg/handle/10635/55717
ISSN: 08858993
DOI: 10.1109/TPEL.2006.876823
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