Paper Details

Multi-level inverter technology is being used in multitude of high-voltage, high-power energysystems which include high-power drive applications for electric vehicles,mills, conveyors, pumps, fans,blowers, compressors, etc. Multilevel inverters offer considerable inherent advantages as compared totheir two-level counter parts.Multi-level inverter circuit is obtained by connecting number of smallerdiscrete voltage sources so they generate the output voltage waveforms with more steps of smallermagnitudes, which is more closer to sine wave. The problems associated with two level inverters areelectromagnetic interference, switching losses, switch voltage stress, and harmonic distortion.Field Orientation Control and Direct Torque Control are two well-known, high performance methods forspeed control of induction motors Out of these two methods motor control by direct torque control hasbecome more popular.It gives high dynamic performance of instantaneous electromagnetic torque. Themajor attributes of DTC method are ability to achieve fast response of torque and flux, simple controlscheme, less computational requirements and offers decoupled control of torque and flux. Workpresented in this paper deals with simulation of Direct Torque Control of Induction Motor Drive usingThree Level and Five Level PWM Inverter using Diode Clamped Multilevel Inverter topology,simulations of are carried out in MATLAB/SIMULINK

Utpal Mahitcha, Prof Shimi S. L., Dr. S. Chatterji, “Direct Torque Control of Induction Motor using3 Level and 5 Level PWM Inverter”, International Journal of Advance Engineering and Research Development (IJAERD), Vol. 1, Issue 3, pp. 139-151, March 2014.