MPPT of Wind Generation for DC Microgrid

Yuan Sheng Xiong; Su Xiang Qian; Qing Song Liu; Yan Zhan

doi:10.4028/www.scientific.net/AMM.448-453.1802

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 448-453MPPT of Wind Generation for DC Microgrid

MPPT of Wind Generation for DC Microgrid

Abstract:

In order to maintain the maximum output power of the WGS (Wind generation system) for all wind speed conditions, a boost converter is used as the power interface between the WGS and DC microgrid. Traditional method is to directly measure the real-time output voltage and current of WGS by sensors. Considering the DC bus voltage is actually stable, the output voltage can be computed by the duty cycle of boost converter and the stable DC bus voltage. A MPPT method is proposed, which only measures the output current of WGS. The output scale power can be obtained by the output current and the duty cycle, and then the perturbation and observation method is executed. A number of voltage sensors and associated circuitry are cancelled. It reduces the interference and system cost and improves the system reliability. Simulation results with PSIM prove the validity of the proposed method.

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Periodical:

Applied Mechanics and Materials (Volumes 448-453)

Pages:

1802-1805

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.448-453.1802

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Online since:

October 2013

Authors:

Yuan Sheng Xiong, Su Xiang Qian, Qing Song Liu, Yan Zhan*

Keywords:

DC Micro-Grid, MPPT, Perturbation and Observation Method, Wind Power Generation

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* - Corresponding Author

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