Intelligent control method and system for photovoltaic water pump

The invention discloses an intelligent control method and system for a photovoltaic water pump. Load end requirements are obtained, an optimization model is adopted to optimize working conditions of a water pump unit and estimate energy consumption, the electric energy supply proportion of all power supply modules of a current electric energy supply system is determined based on the estimated energy consumption, and the load end requirements are matched by controlling the rotating speed of the water pump unit through frequency conversion. According to the invention, the electric energy supply of the photovoltaic pump system can be matched with the load demand, the energy of the power distribution system is optimized, and the operation cost is reduced.