High Performance of Sinusoidal Pulse Width Modulation Based Flying Capacitor Multilevel Inverter fed induction Motor Drive

This paper focused on the development of capacitor voltage balancing methods in a flying capacitor multilevel inverter (FCMLI) fed induction motor drive. For improving the performance of flying capacitor multilevel inverter, a switching pattern selection scheme is implemented. The proposed method has been designed a seven-level flying capacitor 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 investigations.