Ibrahim Mohd Alsofyani and Kyo-Beum Lee, "Evaluation of Direct Torque Control with a Constant-Frequency Torque Regulator under Various Discrete Interleaving Carriers," Electronics, vol. 8, no. 820, pp. 1–15 Jul. 2019. -SCIE > Paper

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Paper

International Journals Ibrahim Mohd Alsofyani and Kyo-Beum Lee, "Evaluation of Direct Torque Control with a Constant-Frequency Torque Regulator under Various Discrete Interleaving Carriers," Electronics, vol. 8, no. 820, pp. 1–15 Jul. 2019. -SCIE

2019

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Constant-frequency torque regulatorbased direct torque control (CFTR-DTC) provides an attractive and powerful control strategy

for induction and permanent-magnet motors. However, this scheme has two major issues: A sector-flux droop at low speed and

poor torque dynamic performance. To improve the performance of this control method, interleaving triangular carriers are used to

replace the single carrier in the CFTR controller to increase the duty voltage cycles and reduce the flux droop. However, this method

causes an increase in the motor torque ripple. Hence, in this work, different discrete steps when generating the interleaving carriers

in CFTR-DTC of an induction machine are compared. The comparison involves the investigation of the torque dynamic performance

and torque and stator flux ripples. The electiveness of the proposed CFTR-DTC with various discrete interleaving-carriers is validated

through simulation and experimental results.

 

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