Multi-Objective Islanding Operation Strategy of Active Distribution Network Considering the Assistance of Mobile Energy Storage System

As the proportion of renewable energy in the distribution network continues to increase, As the proportion of renewable energy in the distribution network continues to increase, problems such as voltage exceeding limits that affect the stable and economic operation of post-disaster distribution network islands become more prominent. In order to effectively solve the voltage exceeding limit problem in isolated islands and consider the operational economy, a multi-objective isolated island operation strategy considering the assistance of mobile energy storage system for active distribution networks was proposed. Firstly, voltage control and economic operation of active distribution network islands can be theoretically proven to be achieved through the optimization of both active and reactive power. Secondly, using mobile energy storage as an auxiliary resource, taking minimizing node voltage deviation and total cost during islanding operation as an objective, a multi-objective islanding operation model for an active distribution network was established, and the Pareto optimal solution set was obtained by using the ε-constraint method. Finally, an IEEE 33 bus distribution system was taken as an example to verify the effectiveness of the proposed strategy. The results show that the proposed strategy can synergistically optimize the active and reactive power output of different power sources after island partition, allowing for the operational economy while eliminating the risk of voltage exceeding limits in post-disaster distribution network islands.