Double-battery fluctuation out-of-limit optimization method in wind storage combined system

The invention discloses a double-battery fluctuation out-of-limit optimization method in a wind storage combined system, and the method comprises the steps: firstly carrying out the segmented averaging of wind power on the basis of wind power prediction, and enabling the segmented average power to serve as target power after the power stabilization of the wind storage combined system; secondly, determining the charging and discharging power of the double batteries according to the target power and the actual sending power of the wind generating set, controlling the charging and discharging state of the double storage batteries, and calculating the charge state of the double storage batteries in the out-of-limit control period in real time; meanwhile, on the basis of wind power prediction,predicting whether the charge state of the double-storage battery pack in the next out-of-limit control period fluctuates out of limit or not, so that whether double-battery charging and discharging state switching is carried