There lack sufficient sample data of fault rate of plant protective relays for accurately evaluating reliability of relay protection.In this paper,a grey prediction algorithm combined with a three-parameter Weibull distribution model were proposed to evaluate the reliability of protective relays.Results show that the algorithm proposed in this paper can rapidly evaluate protective relay reliability based on a small number of sample data,has high precision,and can provide reference for maintenance of protective relays.
grey prediction algorithmWeibull distribution modelrelay protection reliability
NETL
NSTL
万方数据
