Design and Implementation of a Photovoltaic Power System with Bi-Directional Inverter

Yu En Wu; Chih Chung Wu

doi:10.4028/www.scientific.net/AMR.860-863.128

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 860-863Design and Implementation of a Photovoltaic Power...

Design and Implementation of a Photovoltaic Power System with Bi-Directional Inverter

Abstract:

A PV power system with bi-directional inverter is proposed in this paper. The system is divided into two stages, one is power stage, which contains DC/DC converter and bi-directional inverter, the other is control stage. Both stages control schemes are by a micro-controller dsPIC30F4011. For preventing from high current harmonic caused by the two stages, a predictive current control and modulation principle are designed and operated in high frequency to reduce the current harmonic. The bi-directional inverter can operate in grid-connection (GC) mode or power factor correction (PFC) mode. But the core material of inductance will result in violent current ripple change when the inductor current promoted. So, a gain modulation is used to compensate various inductances used to reduce grid-connection current ripple. Finally, the system is implemented to verify the feasibility and performance of the proposed system.

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Periodical:

Advanced Materials Research (Volumes 860-863)

Pages:

128-134

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.860-863.128

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Online since:

December 2013

Authors:

Yu En Wu*, Chih Chung Wu

Keywords:

Bi-Directional Inverter, Grid-Connection, Power Factor Correction (PFC)

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References

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