Electronic Science and Technology ›› 2019, Vol. 32 ›› Issue (5): 75-80.doi: 10.16180/j.cnki.issn1007-7820.2019.05.014

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Study on Output Characteristics of Topologies of Photovoltaic Arrays under Local Shadows

WANG Guixin,ZHENG Qi   

  1. School of Electrical Engineering & New Energy, China Three Gorges University,Yichang 443002,China
  • Received:2018-07-17 Online:2019-05-15 Published:2019-05-06
  • Supported by:
    Hubei Province Microgrid Engineering Technology Research Center Open Fund(2015KDW03)


Under the condition of partial shadow, solar panels of different topologies have different power output characteristics, which directly affect the output efficiency of the entire photovoltaic array. Based on the mathematical model of photovoltaic array under partial shadow conditions, the simulation models of 4*4 PV arrays of SP, TCT and BL were designed and built. In each case of partial shadows, the maximum output power of the three topologies was simulated and the simulation data was analyzed. The research showed that the maximum output power and topology of the PV array exhibited certain regularity in different shadow movement modes, which had certain reference significance for the design of photovoltaic panel topography.

Key words: partial shading, PV array, mathematical modeling, simulation, topology, maximum power output

CLC Number: 

  • TN603