严重的地质灾害会导致大停电事故，影响着电网的安全稳定运行。针对地质灾害对电网的影响，提出一种基于灾害风险图谱的电力系统安全调度策略。首先，基于多种灾害影响因子构建灾害风险图谱，将该图谱与输电线路地理位置相结合，得到输电线路的危险情况；然后，建立电力系统运行风险模型，根据风险综合指标量化分析电力系统的风险情况；最后，以新英格兰地区为例，采用粒子群算法构建发电机和灵活性资源的调节策略，并验证其有效性和可行性。结果表明，所提电力系统安全调度策略可以有效减少包括电力系统越限/重载风险在内的风险综合指标值，增强电网运行的安全性和稳定性。

Severe geologic disasters can lead to major power outages, affecting the safe and stable operation of power grids. To address the impact of geologic disasters on power grids, a power system security scheduling strategy based on disaster risk mapping is proposed. Firstly, the disaster risk mapping is constructed based on a variety of disaster impact factors, and the hazardous situation of the transmission line can be obtained by combining this mapping with the geographic location of the transmission line; Then, the power system operation risk model is established to quantitatively analyze the risk situation of the power system based on the risk composite indexes; Finally, a particle swarm algorithm is used to construct the regulation strategy of generators and flexibility resources in New England as an example and to verify the effectiveness and feasibility of the strategy. The results show that the proposed power system security scheduling strategy can effectively reduce the value of the comprehensive indicators of risk, including the risk of power system overrun/heavy load, and enhance the security and stability of power grid operation.