The allocation of frequency regulation commands plays a crucial role during the participation of energy storage clusters in automatic generation control (AGC). A reasonable allocation strategy ensures effective command execution while fully exploiting the regulation capabilities of energy storage systems. The recent AGC allocation method insufficiently accounts for the comprehensive impact of various consumption in energy storage systems

which may cause high cost and resource waste. The paper proposes an optimization strategy for secondary frequency regulation power of energy storage cluster based on synthesis consumption. First

the hierarchical framework of the collaborative control is designed by considering the basic process of AGC. The participation of the energy storage cluster in AGC regulation involves three stages : command generation

command allocation

and command execution. Then

various types of regulation consumption for the energy storage station involved in the frequency regulation process are fully explored. The synthesis consumption function is constructed

and the dynamic optimal combination scheme is established for each AGC control cycle with the goal of minimizing the consumption. Finally

this paper adopts the equal incremental principle to allocate the frequency modulation power based on the combination scheme. The iterative correction method is utilized in dealing with the overrun power station. Through simulation analysis

it is verified that the proposed strategy can ensure effective execution of AGC commands

reduce the consumption cost of energy storage

and decline the average action of the energy storage stations.