This paper proposes a new method based on a Markov model to calculate the reliability of grid-connected photovoltaic (PV) systems. This system is a grid-connected PV system consisting of PV modules, a multiphase DC–DC converter, an inverter, an inverter controller, and an maximum power point tracking (MPPT) controller at University of Isfahan. This system is considered repairable. Also, different levels of operation are considered for the system equipment. Reliability of the PV modules, the multiphase DC–DC converter, and the inverter has been calculated by the Markov model. Finally, the reliability of the entire PV system is calculated by the Markov model. The proposed algorithm is applied to the PV system positioned at University of Isfahan. Simulation results show the applicability of this method for calculating the reliability of grid-connected PV systems.
A Comprehensive Modeling of Grid-Connected Photovoltaic Systems Using Multiphase Converter Based on Reliability Concepts
Contributed by the Solar Energy Division of ASME for publication in the JOURNAL OF SOLAR ENERGY ENGINEERING: INCLUDING WIND ENERGY AND BUILDING ENERGY CONSERVATION. Manuscript received May 20, 2016; final manuscript received June 2, 2017; published online August 22, 2017. Assoc. Editor: Geoffrey T. Klise.
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Piri, M., Niroomand, M., and Hooshmand, R. (August 22, 2017). "A Comprehensive Modeling of Grid-Connected Photovoltaic Systems Using Multiphase Converter Based on Reliability Concepts." ASME. J. Sol. Energy Eng. October 2017; 139(5): 054502. https://doi.org/10.1115/1.4037377
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