A new switching technique for direct torque Control of Induction Motor using Four-Switch Three-Phase Inverter

Faculty of Electrical and Electronic Engineering, HCMC University of Technology, Ho Chi Minh City, VietNam; Siemens AG Presentation, Ho Chi Minh City, Viet Nam; NARC, Ulsan University, South Korea Abstract: This paper presents a new switching technique for Direct Torque Control of Induction Motor usingFour-Switch Three Phase Inverter (DTC-FSTPI-IM) for low power applications. The modified switchingtable in this method is based on the principle of similarity between FSTPI and SSTPI (Six-Switch ThreePhase Inverter), where the αβ plan is divided into 6 sectors and the formation of the voltage space vector isdone in the same way as for SSTPI by using effective (mean) vectors. This approach allows using the well-knowing established switching table of SSTPI for FSTPI, in order to reduce torque ripples in comparisonwith the conventional DTC method for FSTPI. The validity of new proposed technique is verified bysimulation results using Matlab/Simulink and also experimentally by using DSpace 1104 Card. © 2007IEEE. Author Keywords: Direct Torque Control; Four-Switch Three-Phase Inverter (FSTPI); Optimal SwitchingTable; Pulse-width-modulation; Six-Switch Three-Phase Inverter (SSTPI); Space vector Index Keywords: AC motors; Electric inverters; Motors; Power electronics; Switching; Torque; Torquecontrol; Vectors; Direct Torque Control; Drive systems; Four-Switch Three-Phase Inverter (FSTPI);International conferences; Low power applications; MATLAB /simulink; Optimal Switching Table; Pulse-width-modulation; Simulation results; Six-Switch Three-Phase Inverter (SSTPI); Space vector; Switchingtables; Switching techniques; Three-phase inverters; Torque ripples; Voltage space vectors; Inductionmotors Year: 2007 Source title: Proceedings of the International Conference on Power Electronics and Drive Systems Art. No.: 4487877 Page : 1331-1336 Cited by: 1 Link: Scorpus Link Correspondence Address: Dzung, P. Q.; Faculty of Electrical and Electronic Engineering, HCMC Universityof Technology, Ho Chi Minh City, Viet Nam Conference name: 7th International Conference on Power Electronics and Drive Systems, PEDS 2007 Conference date: 27 November 2007 through 30 November 2007 Conference location: Bangkok Conference code: 73040 ISBN: 1424406455; 9781424406456 CODEN: 85RTA

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