Direct Torque Control Strategies of Electrical Machines 2021
DOI: 10.5772/intechopen.90199
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Direct Torque Control Strategies of Induction Machine: Comparative Studies

Abstract: The direct torque control (DTC) was proposed as an alternative to the vector control in the middle of 1980s for AC machine control. This strategy bases on the direct determination of inverter switching states and offers a simpler scheme and less sensitivity to machine parameters. However, the variable switching frequency of DTC causes high flux and torque ripples which lead to an acoustical noise and degrade the performance of the control technique, especially at low-speed regions. In the objective of improvin… Show more

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Cited by 10 publications
(10 citation statements)
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“…Torque Ripple Factor ¼ Peak to Peak torque ðÞ =Rated torque (16) The simulation results of FLC for DTC-SVM of IM with HASVPWM is shown in Figures 18 and 19.The simulation results of ANN for DTC-SVM of IM with HASVPWM is shown in Figures 20 and 21.…”
Section: Simulation Results and Discussionmentioning
confidence: 99%
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“…Torque Ripple Factor ¼ Peak to Peak torque ðÞ =Rated torque (16) The simulation results of FLC for DTC-SVM of IM with HASVPWM is shown in Figures 18 and 19.The simulation results of ANN for DTC-SVM of IM with HASVPWM is shown in Figures 20 and 21.…”
Section: Simulation Results and Discussionmentioning
confidence: 99%
“…The classical DTC has several disadvantages, among which the variable switching frequency and the high level of ripples are the prominent issues [16]. Further they lead to high-current harmonics and an acoustical noise and they detoriate the control performance at low speeds.…”
Section: Svmmentioning
confidence: 99%
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“…The PI controller then receives the speed error as an input. The maximum power curve, which gives the optimal torque corresponding to the maximum output power from the WT for each wind speed, determines the reference speed by following the route of maximum value of power [34].…”
Section: Proposed Design Of Interval Type-2 Fuzzy Speed Controlmentioning
confidence: 99%
“…The stator flux vector formed in tow-phase axes (α, β) are estimated by integrating the stator backelectromotive force signal [29,30]:…”
Section: Basic Dtcmentioning
confidence: 99%