Research Article Open Access

EXTENDED PHASE SHIFT CONTROL OF ISOLATED BIDIRECTIONAL DC-DC CONVERTER FOR RENEWABLE ENERGY SOURCES CONNECTED TO MICRO GRID

Abstract

The mankind is in dire need for maximum utilization of the available resources. Many people have suggested the application and usage of the micro grid near the load centers. These micro grids are connected to the nearby available generating stations like solar, wind etc. the generating stations cannot give a pure DC voltage for conversion in to AC. We do have some resources which cannot have optimal dc voltage for conversion. These voltage sources are combined and connected to single stage DC-AC // AC-DC conversion. This will provide a flat voltage profile for pure AC production. A phenomenon of power backflow in traditional phase shift control of isolated bidirectional full bridge dc-dc converter and analyzes the effects which backflow power act on power circulating flow and current stress. On the basis a novel extended phase shift control of isolated bidirectional dc-dc converter for power distribution in micro grid compared with traditional phase shift control extended phase shift control not only expands regulating range of transmission power and enhances regulating flexibility but also reduces the current stress and improves the system efficiency

Suresh Kumar Reddy. G, V.Swarupa

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