Multi-energy storage unit cooperative discharging method

The invention provides a multi-energy-storage-unit cooperative discharging method, aiming at the working condition of cooperative discharging of a plurality of same energy storage units in an energy storage device, on the premise of meeting the total discharging power requirement, according to the energy storage state of the energy storage unit currently participating in discharging, the discharging power instruction corresponding to each energy storage unit is automatically adjusted, and the energy storage efficiency is improved. Therefore, the energy storage states of the energy storage units approach each other in the descending process, the function of prolonging the time when all the energy storage units are in the dischargeable state is achieved, and the power supporting capacity of the energy storage device to the system is guaranteed. The power instructions are distributed according to the current energy storage states of the energy storage units, so that the energy storage states of the energy storag