Power system inertia online evaluation method and device based on real-time dynamic partitioning

The invention relates to an electric power system inertia online evaluation method and device based on real-time dynamic partitioning, the inertia of an electric power system is evaluated online under the condition of dynamic change of the system, and the method comprises the following steps: S1, calculating a dynamic frequency response similarity index, and performing real-time partitioning of the system; s2, establishing a regional inertia online evaluation model by considering inertia response characteristics; and S3, obtaining the regional inertia according to the evaluation model, and solving the total inertia of the system. The invention provides a system inertia on-line estimation scheme based on real-time dynamic partitioning by performing real-time dynamic partitioning on a system in consideration of the problems of frequency response moment change of part of units in a junction station and the like. 本发明涉及一种基于实时动态分区的电力系统惯量在线评估方法及装置，在系统动态变化的情况下在线评估电力系统惯量，包括：步骤S1：计算动态频率响应相似性指标，进行系统实时分区；步骤S2：考虑惯量响应特性建立区