Kelaiaia Mounia Samira and Labar Hocine and Bounaya Kamel and Kelaiaia Samia
Effect of Flaying Capacitors on Improving the 4 Level ThreeCell Inverter
1360 - 1364
2009
3
6
International Journal of Electrical and Computer Engineering
https://publications.waset.org/pdf/11008
https://publications.waset.org/vol/30
World Academy of Science, Engineering and Technology
With the rapid advanced of technology, the industrial processes become increasingly demanding, from the point of view, power quality and controllability. The advent of multi levels inverters responds partially to these requirements. But actually, the new generation of multicells inverters permits to reach more performances, since, it offers more voltage levels. The disadvantage in the increase of voltage levels by the number of cells in cascades is on account of series igbts synchronisation loss, from where, a limitation of cells in cascade to 4. Regarding to these constraints, a new topology is proposed in this paper, which increases the voltage levels of the threecell inverter from 4 to 8; with the same number of igbts, and using less stored energy in the flaying capacitors. The details of operation and modelling of this new inverter structure are also presented, then tested thanks to a three phase induction motor. KeywordsFlaying capacitors, Multicells inverter, pwm, switchers, modelling.
Open Science Index 30, 2009