• SANJAY KATHAR
• Dr. A. S. Bhalchandra

The paper reflects the use of three level diode clamped multi-level inverter to control the speed of an induction motor. This technique in addition with multi-carrier PWM control scheme is highly recommended to obtain high quality sinusoidal output voltage with minimum/reduced harmonic distortion. An open loop speed control can be achieved by using V/ƒ method. This method can be implemented by change the supply voltage and frequency applied to the three phase induction motor at constant ratio. The proposed system is an effective replacement for the conventional method which produces high switching losses, results in poor drive performance. The simulation results reveal that the proposed circuit effectively controls the motor speed and enhances the drive performance through reduction in total harmonic distortion (THD).

Induction Motor, Diode clamped multilevel inverter, Multicarrier PWM technique, V/f control

"Multi-level Inverter Controlled 3-phase Induction Motor", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 9, page no.356-361, September-2018, Available :http://www.jetir.org/papers/JETIR1809201.pdf

"Multi-level Inverter Controlled 3-phase Induction Motor", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 9, page no. pp356-361, September-2018, Available at : http://www.jetir.org/papers/JETIR1809201.pdf