Energy control method and system of energy storage power station

Abstract

The invention belongs to the field of energy control of energy storage power stations, and particularly relates to an energy control method and system of an energy storage power station. Comprising the following steps: if the maximum chargeable / dischargeable duration of an energy storage unit under the corresponding rated power is greater than or equal to the average value of the maximum chargeable / dischargeable duration of each energy storage unit under the rated power, setting the maximum chargeable / dischargeable duration as a priority calling level; otherwise, setting to be a standby calling level; after a dispatching instruction is received, if the total value of the real-time maximum chargeable / dischargeable power of all the energy storage units in the whole station cannot meet the instruction value, all the energy storage units in the whole station are controlled to adopt rated power for charging / discharging; otherwise, when the total power value of the priority calling level cannot meet the instruction value, the energy storage unit of the priority calling level is controlled to charge / discharge with the rated power of the energy storage unit; the energy storage unit of the standby calling level meets the difference between the total value and the instruction value; when the total value of each priority call level can satisfy the instruction value, each energy storage unit in the priority call level is controlled to satisfy the instruction value.

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