A new PWM technique for a three phase multilevel inverter by adding summer

The paper is focused to reduce the number of components by using a suitable PWM technique for a three phase Multilevel inverter. The paper uses a new technology that is using the carriers of different amplitude and all the carriers of same frequency operating at higher frequencies and adding a summer in the PWM technique. The proposed PWM technique is simple and easy to understand and the number of components is reduced highly this is achieved by adding a summer as explained. The advantages and disadvantages of these PWM techniques are compared with other PWM techniques in this paper.