针对储能系统参与一次调频造成储能电池寿命损耗的问题，提出一种储能-火电联合一次调频的双层控制策略，通过改进鲸鱼算法对单位调节功率和分配系数进行寻优，在减少储能寿命损耗的同时提高调频效果，最后搭建储能火电一次调频仿真模型。仿真结果表明：在连续负荷扰动工况下，本文提出策略的储能寿命损耗比固定下垂控制和变系数下垂控制分别减少61.1%和32.8%，频率偏差均方根分别比固定下垂控制、变系数下垂控制和无储能减少40%，100%和150%。

Aiming at the problem of battery life loss caused by energy storage system participating in primary frequency regulation, a twolayer control strategy of combined primary frequency regulation for battery energy storage system and thermal power unit was proposed. By using the improved whale algorithm to optimize the unit regulating power and distribution coefficient, the energy storage life loss was reduced and the frequency regulation effect was improved. The simulation model of primary frequency regulation for thermal power energy storage was built eventually. The simulation results show that under the continuous load disturbance condition, the energy storage life loss of the proposed strategy is reduced by 61.1% and 32.8% respectively compared with the fixed droop control and variable coefficient droop control, and the root mean square of frequency deviation of this strategy is reduced by 40%, 100% and 150% respectively compared with the fixed droop control, variable coefficient droop control and no energy storage condition.

TM732

上海市“科技创新行动计划”地方院校建设项目（20020500500）