A Nine-Level Grid-Connected Converter Topology for Single-Phase Transformerless PV Systems PROJECT TITLE : A Nine-Level Grid-Connected Converter Topology for Single-Phase Transformerless PV Systems (2014) ABSTRACT : This paper presents a single-phase transformerless grid-connected photovoltaic converter based on two cascaded full bridges with different dc-link voltages. The converter can synthesize up to nine voltage levels with a single dc bus, since one of the full bridges is supplied by a flying capacitor. The multilevel output reduces harmonic distortion and electromagnetic interference. A suitable switching strategy is employed to regulate the flying-capacitor voltage, improve the efficiency (most devices switch at the grid frequency), and minimize the common-mode leakage current with the help of a novel dedicated circuit (transient circuit). Simulations and experiments confirm the feasibility and good performance of the proposed converter. Did you like this research project? To get this research project Guidelines, Training and Code... Click Here facebook twitter google+ linkedin stumble pinterest A Novel Multilevel Inverter Based on Switched DC Sources A New General Topology for Cascaded Multilevel Inverters With Reduced Number of Components Based on Developed H-Bridge.
