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Title: DC-DC Converter Topology Assessment for Large Scale Distributed Photovoltaic Plant Architectures

Distributed photovoltaic (PV) plant architectures are emerging as a replacement for the classical central inverter based systems. However, power converters of smaller ratings may have a negative impact on system efficiency, reliability and cost. Therefore, it is necessary to design converters with very high efficiency and simpler topologies in order not to offset the benefits gained by using distributed PV systems. In this paper an evaluation of the selection criteria for dc-dc converters for distributed PV systems is performed; this evaluation includes efficiency, simplicity of design, reliability and cost. Based on this evaluation, recommendations can be made as to which class of converters is best fit for this application.
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Conference: IEEE Energy Conversion, Congress, and Exposition, Phoenix, AZ, Sept. 17-21, 2011
Research Org:
GE Global Research Center, Niskayuna, NY, USA
Sponsoring Org:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
Country of Publication:
United States
14 SOLAR ENERGY; MPPT, Distributed, Photovoltaic, DC/DC, Trade-off, String, Level, Topology