Analysis and Design of Multi Input Dc–Dc Converter for Integrated Wind PV Cell Renewable Energy Generated System
S. Ramya1, T. Manokaran2

1S. Ramya, P.G Scholar, Department of Electronics and Communication Engineering, V.S.B Engineering College, Karur (Tamil Nadu), India.
2T. Manokaran, Associate Professor, Department of Electrical and Electronics Engineering, Sri Subramanya College of Engineering and Technology, Palani (Tamil Nadu), India.

Manuscript received on 18 November 2012 | Revised Manuscript received on 25 November 2012 | Manuscript published on 30 November 2012 | PP: 14-19 | Volume-1 Issue-5, November 2012 | Retrieval Number: E0351101512/2012©BEIESP
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Abstract: The objective of this paper is to propose a multi-input power converter for the hybrid system in order to simplify the power system and reduce the cost. The proposed converter interfaces two unidirectional input ports and a bidirectional port for storage element in a unified structure. It also utilizes four power switches that are controlled independently with four different duty ratios. The renewable power system hybridizes PV and Wind as main source & Battery Power for backup energy source. Three different power operation modes are defined for the converter based on utilization state of the battery as follows: 1) An operation type wherein power is delivered to load from hybrid renewable energy sources; 2)A single type wherein only one renewable energy source supplies power to the load with battery discharging; 3) An operation type wherein power is delivered to load from renewable sources along with battery charging. A simple and cost effective control with DC-DC converter is used for maximum power point tracking (MPPT) and hence maximum power is extracted from the source .The integration of the hybrid renewable power system is implemented and simulated using MATLAB/SIMULINK
Keywords: Photovoltaic (PV)/Wind/Battery Sources, Hybrid Power System, State Of Charge(SOC), Multi Input Power Converter, Maximum Power Point Tracking (MPPT).

Scope of the Article: Predictive Analysis