Optimization method and system based on salinity difference energy and photovoltaic hybrid system energy efficiency

The invention discloses an optimization method and system based on salinity gradient energy and photovoltaic hybrid system energy efficiency. The method comprises the following steps: determining the output power of a photovoltaic system according to an established heat transfer model of the photovoltaic system; determining heat in a coolant of the cooling system according to a heat exchange balance equation of the photovoltaic system and the cooling system; secondly, according to the heat stored in the cooling system, the temperature of the coolant input into the salinity gradient energy system is determined; then, according to the temperature of the coolant input into the salinity gradient energy system, the output power of the salinity gradient energy system is determined; finally, the total output power of the hybrid integrated energy system is determined according to the output power of the photovoltaic system and the output power of the salinity gradient energy system, the hybrid integrated energy syste