http://www.iaeme.com/IJARET/index.asp 78 editor@iaeme.com International Journal of Advanced Research in Engineering and Technology (IJARET) Volume 7, Issue 2, March-April 2016, pp. 78–90, Article ID: IJARET_07_02_008 Available online at http://www.iaeme.com/IJARET/issues.asp?JType=IJARET&VType=7&IType=2 Journal Impact Factor (2016): 8.8297 (Calculated by GISI) www.jifactor.com ISSN Print: 0976-6480 and ISSN Online: 0976-6499 © IAEME Publication ___________________________________________________________________________ SPEED CONTROL OF INDUCTION MACHINE WITH REDUCTION IN TORQUE RIPPLE USING ROBUST SPACE-VECTOR MODULATION DTC SCHEME Yeshoda Harish Kumar M.Tech, Power Electronics, Manipal University Jaipur, India Vishnu Goyal Assistant Professor, EEE Department, Manipal University Jaipur, India ABSTRACT In this paper a novel and simple algorithm for three-phase induction motor(IM) under Direct Torque Control (DTC) scheme using Classic DTC switching table for dynamic torque ripple reduction and space-vector modulation scheme for steady state torque and flux control is proposed. The proposed scheme having the advantages of low torque ripples as well as constant switching frequency. Simulation results are given to prove the ability of the proposed method obtaining good speed control bandwidth while overcoming classic DTC and DTC-SVM drawbacks. Key words: Direct Torque Control, Induction Motor, Space-Vector Modulation, Torque Ripple Minimization. Cite this Article: Yeshoda Harish Kumar and Vishnu Goyal. Speed Control of Induction Machine with Reduction In Torque Ripple Using Robust Space- Vector Modulation DTC Scheme. International Journal of Advanced Research in Engineering and Technology, 7(2), 2016, pp. 78–90. http://www.iaeme.com/IJARET/issues.asp?JType=IJARET&VType=7&IType=2 1. INTRODUCTION The basic concept of DTC of AC motor drives is to control both stator flux linkage and the electromagnetic torque of the machine simultaneously. Since a DTC-based drive system select the inverter switching states using switching table, neither current controllers nor pulse-width modulation (PWM) modulator is required, as shown in