Photovoltaic Power Generation MPPT Control Method Based on Fuzzy Control
摘要：To maximize the photoelectric conversion efficiency of photovoltaic（PV） cells in photovoltaic power generation system, targeting the shortcomings of the fixed step length conductance increment MPPT control method, a variable step-size conductance incremental modified MPPT algorithm based on fuzzy control has been put forward. The characteristics of the photovoltaic cells have been analyzed and an equivalent model has been built, a photovoltaic power generation system based on the boost circuit has been built, the corresponding fuzzy control rules are set based on the system input and output, an appropriate subordinating degree function was chosen, the optimization of maximum power tracking control has been realized. Through simulation and analysis, this method was proven to be better than traditional fixed-step conductance increment method, which can improve the control accuracy and reduce the fluctuation of output power of photovoltaic cells.
2017 4th International Conference on Power and Energy Systems （PES 2017）