Photovoltaic technology has experienced unprecedented growth in the last two decades, transforming from mainly off-grid niche generation to a major renewable energy technology, reaching approximately 180 GW of capacity worldwide at the end of 2014. Large photovoltaic power plants interfacing the grid through a three-phase power electronic converter are now well on the way to becoming a major player in the power system in many countries. Therefore, this article gives an overview of photovoltaic systems with a focus on three-phase applications, presenting these both from a hardware point of view, detailing the different photovoltaic inverter structures and topologies as well as discussing the different control layers within a grid-connected photovoltaic plant. Modulation schemes for various photovoltaic inverter topologies, grid synchronization, current control, active and reactive power control, maximum power point tracking, as well as grid integration requirements and support functions are reviewed.
Three-phase Photovoltaic Systems: Structures, Topologies, and Control
Electric power components and systems ; 43 , 12
2015
Aufsatz (Zeitschrift)
Englisch
PV module , photovoltaic inverter , solar energy , synchronization , maximum power point tracking , Topology , grid support , photovoltaic systems , Power plants , three-phase converters , pulse-width modulation , PV bridge , PV array , Alternative energy sources , Photovoltaic cells , Electrical equipment , control , DC-AC converter
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