Operating rules curves are the most commonly used tools for reservoirs management.A novel model,called hydropower reservoir optimal operation model combining simulation rules and genetic algorithm(hereafter referred to as a HROO SRGA) was set up, which combines two processes of the formulating of the operating rule curves and their validity check.HROO SRGA can get a set of satisfying reservoir operating rule curves which can consider the constraints of downstream the river ecological water requirement and guaranteed rate of guaranteed output of hydropower plant.This model was applied to a large annual storage plant in China,and the results showed that the proposed method is effective and can obtain many scheduling schemes which their capacity reliability and capacity are much higher than that of conventional operating rule curves did.
