Planned value prediction method of energy storage system and energy storage coordination control device

The invention provides a planned value prediction method for an energy storage system, and the method comprises the following steps: 1, obtaining a local peak-valley price difference and historical load data of the energy storage system, and predicting a next-day load value through the historical load data to obtain a next-day load value, wherein the historical load data comprises a load value ofeach time point in N days; 2, setting a constraint condition, taking the next day load value as the input of a KNN algorithm, taking the peak-valley price difference as the constraint condition, predicting the next day plan value through the KNN algorithm, and obtaining the predicted next day plan value data, wherein the predicted next day plan value data comprises a predicted value of each time point in the next day; 3, charging and discharging the stored energy according to the predicted value of the time point in the next day planned value data corresponding to the current time point. Compared with the prior art, t