A hierarchical optimization strategy for distribution network reconfiguration considering the access of flexible interconnect devices

To achieve active control and active management of distribution network, flexible interconnect devices (FID) based on power electronics are proposed to optimize the power flow. This kind of device can be a good supplement to conventional control means due to its ability to regulate the power flow. This paper addresses network reconfiguration with the application of FID for improved flexibility in distribution network operation. In particular, a hierarchical optimization strategy based on hybrid coding is proposed specifically to solve the optimal problem of network reconfiguration with FID. A case study based on IEEE 33-bus system was carried out for strategy verification. The results show that it is possible to realize the better performance of distribution system by the collaborative optimization of network reconfiguration with FID.