为应对大规模可再生能源接入电网带来的随机性和波动性挑战，确保可再生能源利用的灵活性，在实际电网运行中加入合理的储能设备成为目前研究的热点。针对电化学储能参与含抽水蓄能电站的互联电网调频问题，提出一种基于线性自抗扰技术的抽/储联合负荷频率控制(LFC)策略。在建立了考虑调速器死区和发电速度限制等非线性条件的抽/储联合LFC模型的基础上比较不同控制器性能，采用所设计的二阶线性自抗扰控制器(LADRC)，凭借其优良控制性能并引入需求响应(DR)参与调频。仿真验证在抽水蓄能中加入电化学储能后系统具有更强的抗干扰性，对平抑电网频率波动具有良好的动态响应。

In order to cope with the challenge of randomness and volatility brought by large-scale renewable energy access to the power grid, and to ensure the flexibility of renewable energy utilization, it has become a hot topic to add reasonable energy storage equipment into the actual power grid operation. A load frequency control (LFC) strategy based on linear auto disturbance rejection technology is proposed. It can solve the problem of electrochemical energy storage participating in frequency modulation of interconnected power grid with pumped storage power station. Based on the establishment of a combined pumping/storage LFC model considering the dead zone of the governor, the power generation speed limit and the other nonlinear conditions, the performances of different controllers are compared, and a designed second-order linear active disturbance rejection controller (LADRC) is adopted, with its excellent control performance and the introduction of demand response (DR) to participate in frequency regulation. The simulation verifies that the system has stronger anti-interference ability after adding electrochemical energy storage to the pumped storage, and has a good dynamic response to smooth the frequency fluctuation of the power grid.

国家自然科学基金项目(51907084);云南省应用基础研究计划项目（202101AT070080）;云南电网有限责任公司科技项目（YNKJXM20190087）