含高比例非同步电源的低惯性电力系统抗扰动能力不足，在一次调频响应之前系统扰动引起的频率跌幅就可能触发低频减载风险，亟需配置足额的快速频率响应资源。针对国内快速频率响应备用体系缺失、直流频率限制控制器（frequency limiting controller，FLC）备用优化空间受限、储能多调节功能利用不足等问题，提出了一种直流FLC与储能协同优化的快速频率响应备用配置方法。首先，基于送端系统直流联络线的运行特性提出直流FLC与储能相协同的快速频率响应备用容量经济分配方法；其次，面向储能的多时间尺度调节特性，提出考虑多功能调节容量叠加复用的储能利用模式；在此基础上，构建送端直流FLC与储能协同优化的区域现货市场出清模型，实现系统快速频率响应备用的日前全时段优化。最后，通过南方区域现货市场出清模拟案例验证所提配置方法和出清模型的有效性。

The low inertia power system with a high proportion of asynchronous power sources has insufficient anti-interference ability. Before the primary frequency response, the frequency drop caused by disturbance may trigger low-frequency load shedding risk, and it is urgent to allocate sufficient fast frequency response resources. A fast frequency response reserve allocation method based on the coordinated optimization of DC frequency limiting controller （FLC） and energy storage is proposed to address issues such as the lack of a domestic fast frequency response reserve system, limited optimization space for FLC reserve, and insufficient utilization of energy storage multiple functions. Firstly, based on the operational characteristics of the DC interconnection line in the sending-end system, a fast frequency response economic allocation method for reserve capacity is proposed, which combines DC FLC with energy storage. Secondly, based on the multiple time scales regulation characteristics of energy storage, a energy storage utilization mode considering multifunctional regulation capacity stacking and reuse is proposed. On this basis, a regional spot market clearing model is constructed for the coordinated optimization of DC FLC and energy storage, achieving rapid frequency response and day-ahead full time optimization of the system's reserve. Finally, the effectiveness of the configuration method and clearing model proposed in this paper is verified through a simulation case of clearing the spot market in the southern region of China.