Research on a Photovoltaic Generating System Based on High Step-Up Ratio Boost Converter

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Abstract:

In order to improve the performance of photovoltaic generating system, an improved interleaved boost converter was used as Maximum Power Point Tracker (MPPT) to match the power with the load. Compared with the traditional boost converter, the advantage of improved interleaved boost converter is high step-up ratio, low input ripple current and improved reliability. Based on this topology, the MPPT control strategy of variable step size perturbation and observation (P&O) method is adopted, photovoltaic array can track the maximum power point by adjusting PWM duty ratio of the boost converter. The simulation results certify the correctness of theoretical analysis.

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Periodical:

Advanced Materials Research (Volumes 694-697)

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2933-2937

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May 2013

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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