Power supply restoration algorithm of multi-contact distribution network with distributed intelligent feeder automation system

In distribution network, the construction of multi-contact switch can increase the load transfer path and improve the operating flexibility. However, it also brings a problem about how to make full use of the spare load capacity of the multi-contact switches in the distribution network fault restoration. The distributed intelligent feeder automation system can quickly complete the fault location, isolation and restore power supply. Therefore, the intelligent optimization power supply restoration algorithm of multi-contact distribution network based on distributed intelligent feeder automation system is proposed. Taking the least interrupted load as objective and the maximum use of the spare load capacity of contact switch as recovery rule, then the recovery program is determined by the topology of the non-fault zone and the concept of the boundary switch introduced, which can short the search space and time. The effectiveness and feasibility of the power supply restoration is verified by Simulation analysis.