Multi-period optimal power flow for identification of critical elements in a country scale high voltage power grid
本文提出基于交流多时段最优潮流的方法，对国家级高压输电网络中的关键元件进行数值排序，以优先提升系统韧性，并讨论了保护与缓解措施。
The paper focuses on the identification and numerical ranking of critical elements in a power transmission network. This problem is closely linked to the identification of critical infrastructure in a power grid. A quantitative ranking of the power system elements is necessary for the prioritization of actions enhancing system resilience, as the most critical elements require higher attention ensuring protection, functionality, redundancy and reliability. The paper presents a methodological approach based on alternating current multi-period optimal power flow problem formulation and application on a reference network replicating a country scale system. The multi-period optimal power flow method was tested and applied to the reference system and a number of critical elements were identified. The paper further discusses possible protection and mitigation measures.