Research Of Controller In Independent Photovoltaic Power Generation System

Solar energy power generation technology is an important one of the new energy development.In recent years,the Maximum Power Point Tracking(MPPT) technique is widespread concerned for its improving the conversion efficiency of Photovoltaic system. In this paper Solar energy power generation system is introduced firstly,and then focus on MPPT technology.By comparing existing algorithms of MPPT,a new one is introduced,which is variable length of stride incremental conductance(IncCond) algorithm.A model of solar cell is established,and based on which analyses the algorithm on a MPPT control simulation model.A buck circuit model is established for the cell charge management,and at last all models are integrated to do system analysis of photovoltaic system.