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2014 (Vol. 7, Issue: 13)
Article Information:

Design and Implementation of a Power Converter to Process Renewable Energy for Step-down Voltage Applications

Chih-Lung Shen and Yu-Sheng Shen
Corresponding Author:  Chih-Lung Shen 

Key words:  Modified forward converter, solar energy, step-down voltage, wind power , , ,
Vol. 7 , (13): 2714-2723
Submitted Accepted Published
September 09, 2013 October 07, 2013 April 05, 2014

In this study a power converter to process renewable energy is proposed, which can not only process solar energy but deal with wind power. The proposed converter is derived from two series modified forwards to step down voltage for charger system or dc distribution application, so as called Modified-Forward Dual-Input Converter (MFDIC). The MFDIC mainly contains an upper Modified Forward (MF), a lower MF, a common output inductor and a DSP-based system controller. The upper and lower MFs can operate individually or simultaneously to accommodate the variation of atmospheric conditions. Since the MFDIC can process renewable power with interleaved operation, the ripple of output current is suppressed significantly and thus better performance is achieved. In the MFDIC only a common output inductor is needed, instead of two separated inductors, so that the volume of the converter is reduced significantly. To draw maximum power from PV panel and wind turbine, perturb-and-observe method is adopted to achieve the feature of Maximum Power Point Tracking (MPPT). The MFDIC is constructed, designed, analyzed, simulated and tested. Simulations and practical measurements have demonstrated the validity and the feasibility of the proposed dual-input converter.
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  Cite this Reference:
Chih-Lung Shen and Yu-Sheng Shen, 2014. Design and Implementation of a Power Converter to Process Renewable Energy for Step-down Voltage Applications.  Research Journal of Applied Sciences, Engineering and Technology, 7(13): 2714-2723.
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ISSN (Online):  2040-7467
ISSN (Print):   2040-7459
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