Shahrouz Ebrahimpanah - School of Automation, Wuhan University of Technology, P.O. Box No.۲۰۵ Luoshi Road, Wuhan,China
Qihong Chen - School of Automation, Wuhan University of Technology, P.O. Box No.۲۰۵ Luoshi Road, Wuhan,China
Liyan Zhang - School of Automation, Wuhan University of Technology, P.O. Box No.۲۰۵ Luoshi Road, Wuhan,China

Nowadays multilevel inverters have become more popular in electric high power application and the connection of renewable energy such as solar and wind energy to the power grid is an interesting subject. Many topologies and control methods have already been suggested. In this paper, first of all, gives a brief survey of the three prevalentlyused multilevel inverter systems. Then, in continue there will be examined and compared the most usual multilevel topologies and finally, a short review is presented to verify the control methods for power converters.

Multilevel inverter, Diode-clamped inverter, Flying capacitor inverter, Cascaded H-Bridge converter, Power Converter