PRESENTED BY:
N.SAHUL HAMEED
V.DINESH BABO
P.PURSOTHAMAN

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A Novel Power Management Control Strategy for Renewable Energy Power System
Introduction and Scope
 Comparing single-stage grid-connected photovoltaic (PV) system with power quality improvement, in this project, a high-capacity single phase grid-connected PV system based on wide range conversion converter + inverter is proposed, which not only allows a wide range of input voltage, but also compensates unbalance current of the local load comparing in the case of three-phase three-wire PV system.
 This project explains the control principle of each power stage of the system and the simplified cost effective control strategy of combination of PV grid-connected generation in detail.
 then the Simulation and Experimental results of the proposed system represents the features of the proposed system.
 Conversion from low-voltage dc to high-voltage ac for grid-tie applications were proposed to deal with specific issues such as high efficiency, low cost, and safety.
 The aim of this article is to introduce and discuss the main features of these relatively new circuit topologies that deal with these practical design issues.
 The aim of this article is to introduce and discuss the main features of these relatively new circuit topologies that deal with these practical design issues
Grid Tie converter system
 For low-voltage dc energy sources, a power conditioning system (PCS) is needed to convert the energy sources to a higher-voltage dc before making it to ac for grid tie applications.
 Solar photovoltaic (PV) and fuel cells are perhaps the most well-known and prospective energy sources with low-voltage dc output.
• A thermoelectric generator, a battery, and an ultra capacitor are also examples of such low-voltage dc energy sources. Recently, numerous circuit topologies for the power conversion from low-voltage dc to high-voltage ac for grid-tie applications were proposed to deal with specific issues such as high efficiency, low cost, and safety
INTRODUCTION TO PV SYSTEM
o The PV power system can be classified into two types: stand-alone PV system and grid-connected PV system.
o In remote or isolated regions where power grid can not extend to, stand-alone PV schemes have found a fairly wide application to meet the need for small but essential electric load.