The service life of battery storage is influenced by its short-term operation. With special concern about battery degradation and economic values in different operation manners

optimal generation scheduling of power system with large-scale battery storage is studied considering battery life model. Based on battery degradation mechanism and the semi-empirical model and requirement of simplified modelling on system optimization

two types of battery life models based on power exchange and depth of discharge(DOD)are built

respectively. The DOD-based model can be further simplified by the number of cycles per day or the equivalent full cycle in a day. Battery life models are integrated into the unit commitment problem of the power system

then a mixed integer linear programming model is constructed to solve the optimization. Finally

the feasibility and modelling effect of different models are compared by case studies.