国电南京自动化股份有限公司, 江苏省南京市 211153
Guodian Nanjing Automation Co., Ltd., Nanjing 211153, China
Existing local type feeder automation is insufficient in dealing with network topology variations and automatic recovery of multiple contact points. A new adaptive local type feeder automation fault processing method based on regional sequence number is proposed. All switches in the distribution region are configured with uniform setting and each switch is assigned with a logical number according to the principle of region sequence number definition. The operation parameters of each switch are automatically adjusted according to the logical number. Cooperating with the substation protection and primary/secondary combined equipment, network topology changes can be adaptive, and the fault location and isolation and multi-contact power restoration can be completed. The typical application schemes are used to further illustrate the self-adaptability of the method in the case of adding branch lines, multi-contact operation mode adjustment and high-impedance single-phase grounding faults in the distribution network. The validity of the proposed method is verified by simulation on PSCAD/EMTDC.
LI Zhaotuo, JIN Songmao,ZHANG Hua.Adaptive Fault Processing Method for Local Type Feeder Automation Based on Region Sequence Numbers[J].Automation of Electric Power Systems,2019,43(19):179-184. DOI:10.7500/AEPS20181113006.