Pressure retarded osmotic energy power generation system

The invention relates to the field of osmotic energy power generation devices and particularly discloses a pressure retarded osmotic energy power generation system to solve the problems that pressure fluctuation of an existing pressure retarded osmosis (PRO) power generation system is large, and energy consumption of the existing PRO power generation system is high. The pressure retarded osmotic energy power generation system comprises an osmotic device, a weak solution tank, a concentration device and a power generation device and further comprises a pressure stabilizer and a water storage device. The water storage device can be used for storing a concentrated solution and recovering pressure energy. The pressure stabilizer of the structure is arranged between the concentrated solution side and the water storage device, pressure stability of the system can be maintained in the power generation process, pressure fluctuation of the system is reduced, and the condition that the power generation system reach and