• Murahari Pravallika Rani
• R.Sheba Rani

In this paper, a Modified Five level cascaded multilevel Inverter topology is proposed which is useful for the minimization of leakage current. The number of switches is reduced as compared to the conventional five level CMLI. The proposed topology is connected to a PV system and its performance is studied. Topology consists of eight switches and complementary switching is employed for only four switches. Thus PV and Grid source can be isolated during Zero voltage state condition. The PWM technique employed for proposed converter reduces High frequency voltage transitions and common mode voltages. This helps in reduction of leakage current to considerable level. MPPT technique is employed for proposed topology , which helps in reducing the common mode voltages and high frequency voltage transitions. The harmonics in Grid currents are also reduced and meet the IEEE 1547 Standard. The proposed Modified Five level CMLI is simulated using MATLAB/Simulink

Cascaded Multilevel Inverter (CMLI), Photo voltaic (PV),Pulse Width Modulation (PWM), Common-Mode Voltage (CMV), Total Harmonic Distortion (THD),Leakage current, terminal voltage

"Modified Cascaded Multilevel Inverter for PV System ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 11, page no.658-667, November-2018, Available :http://www.jetir.org/papers/JETIR1811087.pdf

"Modified Cascaded Multilevel Inverter for PV System ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 11, page no. pp658-667, November-2018, Available at : http://www.jetir.org/papers/JETIR1811087.pdf