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Title
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Dual‑source inverter for hybrid PV–FC application
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Type
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JournalPaper
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Keywords
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Partial power processing, Isolated Z-source converters, High step up converters, DC/AC converter, Power sharing.
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Abstract
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Multi input–multi output Power electronic interface for hybrid energy resources has gathered much of interest. In this paper, a new confguration for cascade connection of two Z-Impedance networks is presented which is able to extract power from two separate low voltage energy sources such as photovoltaic panels and fuel cell stacks. The required load power can be shared between two sources which may have diferent low values. The power sharing is controlled by adjusting the shoot through duration and time shifting. The proposed converter includes the features of conventional Z-source converter such as voltage boost and shoot through immunity of the inverter. Steady state operation principles, switching methods and the main relations for power fow from two inputs to the output are derived. A prototype of the converter is built and tested for diferent operation modes. The results are compared with simulations and theoretical analysis which verify well performance of the system.
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Researchers
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Mohammad Mardaneh (Third Researcher), Amirhossein Rajaei (Second Researcher), Majid Ghani (First Researcher)
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