Switching pattern selection scheme based cascaded multilevel inverter fed induction motor drive

This paper focus on switching pattern selection scheme based cascaded multilevel inverter fed induction motor drive. It offer several advantages compared to the conventional 3-phase bridge inverter in terms of lower dv/dt stresses, lower electromagnetic compatibility, smaller rating and better output features. The proposed method has been designed an eleven-level cascaded multilevel inverter by using sinusoidal pulse width modulation technique. The selected pattern has been exposed to give superior performance in load voltage, total harmonics distortion and capacitor voltage fluctuation. The performance of proposed strategies is confirmed through simulation and hardware investigations.