Fuzzy control-based design of single-phase grid-connected photovoltaic power system
Abstract：The components of main circuit of single-phase photovoltaic grid-connected system are discussed and the control system is designed.Considering the strong non-linearity of photovoltaic cells,fuzzy control method is introduced for MPPT of the photovoltaic generation system.The system responds rapidly by using fuzzy control method when the external environment changes quickly.The outer ring voltage-current inner ring of the double-loop control strategy is used to realize the control of the current waveform for the photovoltaic inverter system.The system can run with good dynamic performance and inhibit perturbation of grid voltage.The output power factor of the photovoltaic inverter is close to 1 by the double-loop control strategy.The experimental results prove the rationality and correctness of the design.
Keywords：grid-connected photovoltaic power systeminverterfuzzy controlMPPT
Publication Date：2011-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 20-24 )