FIVE-LEVEL INVERTER SWITCHING FOR THE OPEN-END WINDING IM DRIVE TO ACHIEVE COMMON MODE VOLTAGE ELIMINATION AND DC-LINK CAPACITOR VOLTAGE BALANCING
Keywords:
Inverter, Inverter Structure, IM DriveAbstract
A variation of Common mode voltage (CMV) in PWM inverter-fed drives causes unbalanced voltage
operation in induction motor. Multilevel inverters reduce this problem to some extent, but the complexity of
the power circuit increases with an increase in the number of inverter voltage levels. In this project a fivelevel inverter structure is proposed for open-end winding induction motor (IM) drives. It consists of
cascaded two conventional two-level and three-level inverters, this inverter scheme do not experience
neutral-point fluctuations.
This project work carried for generation of five level inverter output voltage open-end winding induction
motor drive. Multilevel carrier-based SPWM used for generating the gate pulses of the cascaded inverters of
the proposed drive. The proposed work carried by using MATLAB.


