Research of the self-healing system of distribution network based on feeder terminal
When the 10 kV line fails,the substation feeder outlet switches and line section and branch switch often trip at the same time,branch switch trip,it is showed that the configuration of the line switch is unreasonable.According to the protection action type of the feeder outlet switch of the substation,the reason and type of the above trip are analyzed,and the optimization scheme for different trip cases of the substation feeder outlet switch,which further reduces the scope of power failure and recovery time caused by the fault.On this basis,the automatic setting research of extreme differential protection+voltage and current time-type feeder protection based on feeder terminal(FTU)is further proposed to realize the fault self-healing function of distribution network.In view of the lines that often occur in a county,through the optimization of the proposed scheme and achieved the effect as scheduled.
distribution network lineleap-over tripautomatic distribution networkself-healing system of distribution network
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维普
