On - line Real - time Evaluation of Urban Power Grid Recovery Ability

The concept of recovery ability evaluation is firstly proposed in the field of distribution power grid fault recovery of this paper. Recovery ability evaluation refers to the ability of the fault distribution power grid to return to the basic normal power supply and the evaluation of the time and resources needed in the period to restore the power grid to the normal state. The evaluation has the characteristics of real-time and dynamic, which is of great significance to the timely and effective reduction of the economic loss of equipment and users, the determination of accident grade and the establishment of real-time optimal recovery strategy. In this paper, an online real-time evaluation model of distribution network recovery ability based on Multi-Agent is established. It includes three Agent Alliances, which are the recovery ability Index, the environment of the power grid and the disaster-bearing body Alliance. Furthermore, the index weights are changed in real time, which guarantee the real-time and dynamic of the recovery ability assessment of the power network. Finally, the reliability and applicability of the results are verified by an example.