Modular Cascaded H-Bridge Multilevel PV Inverter with Distributed MPPT for Grid-Connected Applications

M. Surender, S.Vijay Kumar


This paper presents a modular cascaded H-bridge multilevel photovoltaic (PV) inverter for single- or three-phase gridconnected applications. The modular cascaded multilevel topology helps to improve the efficiency and flexibility of PV systems.To realize better utilization of PV modules and maximize the solar energy extraction, a distributed maximum power pointtracking control scheme is applied to both single- and three-phase multilevel inverters, which allows independent control of eachdc-link voltage. For three-phase grid-connected applications, PV mismatches may introduce unbalanced supplied power, leadingto unbalanced grid current. To solve this issue, a control scheme with modulation compensation is also proposed. Anexperimental three-phase seven-level cascaded H-bridge inverter has been built utilizing 9H-bridge modules (three modulesper phase).

Full Text:


Copyright (c) 2017 Edupedia Publications Pvt Ltd

Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.


EduPedia Publications Pvt Ltd, D-351, Prem Nagar-2, Suleman Nagar, Kirari, Nagloi, New Delhi PIN-Code 110086, India Through Phone Call us now: +919958037887 or +919557022047

All published Articles are Open Access at

Paper submission: or


Mobile:                  +919557022047 & +919958037887


Journals Maintained and Hosted by

EduPedia Publications (P) Ltd in Association with Other Institutional Partners

Pen2Print and IJR are registered trademark of the Edupedia Publications Pvt Ltd.