Distributed photovoltaic-based intelligent cluster control method and system

The invention discloses an intelligent cluster control method and system based on distributed photovoltaic, particularly relates to the field of power control, and aims to realize power supply and demand optimization by constructing a supply and demand model and generating a supply and demand coefficient through a balance capacity fluctuation index, a conversion loss trend index and a sunlight influence index. Through dynamic adjustment of supply and demand coefficients, power supply and demand can be better matched, waste and shortage are reduced, and the stability of the system is ensured. According to comparison of the supply-demand coefficient and the threshold value, the system can intelligently identify the demand side and the supplier, and intelligent supply-demand switching is achieved. The sunlight, the surplus capacity and the loss trend are comprehensively considered, the system can better adapt to the power fluctuation condition, and the stability of the power system is improved. Through an iterat