Open AccessDistribution network reconfiguration comprehensively considering N −1 security and network loss
Author(s) -
Zu Guoqiang,
Xiao Jun,
Sun Kai
Publication year - 2018
Publication title -
iet generation, transmission and distribution
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.92
H-Index - 110
eISSN - 1751-8695
pISSN - 1751-8687
DOI - 10.1049/iet-gtd.2017.0820
Subject(s) - margin (machine learning) , control reconfiguration , computer science , network security , mathematical optimization , mathematics , computer security , embedded system , machine learning
Efficiency pursuit of the distribution system operation should be on the premise of security. This study proposes the network reconfiguration (NR) approach comprehensively considering N −1 security and network loss. A new approach called distribution system security region (DSSR) is first applied in NR problem. The DSSR is the feasible operation space of a system within N −1 security criterion and can quantify the N −1 security margin. Then, the NR is formulated by using the minimum network loss as objective function and the N −1 security margin, which is provided by the DSSR, as constraints. Moreover, the security margin constraints can be customised for each feeder individually, yielding proper compromises between security‐related and efficient concerns. Different NR results for multiple security and efficiency requirements are presented on an extended IEEE‐RBTS test system. Compared with the traditional minimum‐loss NR, the proposed approach reduces the network loss as much as possible with desired security margin, well balancing the security and efficiency of NR.