Island microgrid optimization operation method based on tie line and energy storage life

The invention discloses an island microgrid optimization operation method based on a tie line and an energy storage life. The method is characterized in that the method comprises the steps of buildinga storage battery throughput life model, enabling the storage battery throughput life model to convert the state of charge of a battery pack and a feedback charging and discharging depth state into economic cost and carrying out the evaluation, establishing a tie line power evaluation index, introducing uncertain constraints of natural resources and loads by adopting a random opportunity constraint method, describing a probability part of an error by normal distribution, converting the uncertain constraints into certain constraints, and adding the certain constraints into the storage batterythroughput life model for solving, adopting a target membership function, converting a multi-target problem into a single target to be optimized and solved according to a maximum satisfaction index method, and conducting optim