Paper Details

The purpose of this paper is to propose a cascaded H Bridge (CHB) inverter with reduced DC source for PVapplications since each PV panel can act as a separate DC source for each cascade H bridge module. The maindisadvantages of the cascade multilevel inverters is a need of an isolated dc voltage sources for each H-bridge, due to thisreason size of the inverter and cost increases, by virtue of which reliability of the system reduces. This Disadvantage ofinverter is the key motivation for the present work .In this paper Cascaded Multilevel inverter for photovoltaic generatingsystem is presented with reduced dc source to show the benefits of cascade the PV system. The performance of the cascadedmultilevel inverter with fundamental switching scheme for different levels is studied through simulation using PSCAD 4.2. AMathematical model for Photo Voltaic system is developed and implemented with the multilevel inverter. The overall systemperformance is studied for different solar intensities and temperature. A prototype PV system with 5-level inverter isimplemented in PSCAD 4.2.

Prabhat Ranjan Sarkar, Faizan Arif Khan, Isarar Ahamad, “PERFORMANCE ENHANCEMENT OF MULTILEVEL INVERTER IN PV SYSTEM WITH NEW TOPOLOGY”, International Journal of Advance Engineering and Research Development (IJAERD), Vol. 2, Issue 1, pp. 301-307, January 2015.