Multi-level cascaded DC/DC converters for PV applications

Cascaded Boost Converter for PV Applications

Among renewable energy sources, solar power has the potential to become one of the main contributors to the future electricity supply. Low voltage photovoltaic systems require a high voltage gain converter for module’s grid connection through a DC-AC inverter. This paper proposes a converter that achieves a high step-up voltage conversion ratio, which contains a coupled inductor, without extrem...

Simulation Of Cascaded H-Bridge Multilevel Inverters For PV Applications

Now a days the renewable energy such as wind, solar, ocean, Biomass and geothermal powers are getting more attention with the increasing demand on energy, high oil prices and concern of environmental impacts increased. Among them Photovoltaic(PV) generation getting more importance due to absence of fuel cost, low maintenance, no noise, no moving parts and long life time. Multilevel inverters be...

Multi-Level Converters

A New Hybrid 9-Level Cascaded H-Bridge Multi Level Inverter for Low Power Applications

Multilevel converters offer advantages in terms of the output waveform quality due to the increased number of levels used in the output voltage modulation. This advantage is particularly true for cascade H-bridge (CHB) converters that can be built to produce a large number of levels owing to their modular structure. When increase the number of levels it requires more number of switches, it impl...

Comparison and Analysis of Three-level Converters versus Two-level Converters for Ship Propulsion Applications

In this paper, an overview of the techniques applied to AC electric propulsion field has been done. Actual study cases of electric ship propulsion schemes are considered. An impartial comparison between three-level converters versus two-level converter from the viewpoint of electric ship propulsion requirements has been done. Diodeclamped three-level converters using direct torque control (DTC)...