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Design and Implementation of DC-DC Converter for DC Nano Grid Integrated with Photovoltaic Power Generation System

 Abstract — Solar photovoltaic power generation system is one of the burning research fields these days, even governments are also making plans toward increasing the amount of power generation from renewable energy sources because in future viability and crisis of conventional energy sources will increase. Further government liberalization and technical developments encourage the use of renewable sources for power generation in terms of distributed generation system. In order to rigging the present energy crisis one renewable method is to develop an efficient manner in which power extracts from the incoming son light radiation calling Solar Energy. Solar Photovoltaic (PV) power generation system comprises several elements like solar panel, DC-DC converter, MPPT circuit, Battery charge controller and load. Recently the growth of DC operative home appliances like mobile and lap top chargers, ovens and hair dryer’s etc. are increasing and therefore a DC-DC converter is an efficient way to meet the electricity need from the local DER and helps in improving the system efficiency. This thesis presents simulation results of a buck boost converter, MPPT algorithm (P & O method) with fuzzy and PID controller for solar PV module. The proposed methodology is to extract maximum DC power from solar PV system and it is directly fed to DC load or DC Nano grid.