28-11-2019 дата публикации
Номер: US20190361065A1
Принадлежит:
The disclosure provides a method and device for reliability assessment of a wide area protection system, solving the technical problem that a reliability research result of a current wide area protection system is only limited to reliability research of a communication network thereof, but a reliability analysis model for an overall system does not exist. The method provided by the disclosure includes: S, acquiring an information acceptance rate d of a wide area monitoring center of a wide area protection system; S, obtaining the accuracy p(d) of wide area protection initiation, the accuracy p(d) of fault area positioning and the accuracy p(d) of fault element recognition according to the information acceptance rate d; and S, multiplying the accuracy p(d) of wide area protection initiation, the accuracy p(d) of fault area positioning and the accuracy p(d) of fault element recognition to obtain the decision accuracy Pof the wide area protection system. 1. A method for reliability assessment of a wide area protection system , comprising:{'b': '1', 'S, acquiring an information acceptance rate d of a wide area monitoring center of a wide area protection system;'}{'b': '2', 'sub': sf', 'fz', 'fc, 'S, obtaining the accuracy p(d) of wide area protection initiation, the accuracy p(d) of fault area positioning and the accuracy p(d) of fault element recognition according to the information acceptance rate d; and'}{'b': '3', 'sub': sf', 'fz', 'fc', 'dmp, 'S, multiplying the accuracy P(d) of wide area protection initiation, the accuracy p(d) of fault area positioning and the accuracy p(d) of fault element recognition to obtain the decision accuracy Pof the wide area protection system.'}23. The method for reliability assessment of a wide area protection system according to claim 1 , after the step S claim 1 , also comprising:{'b': '4', 'sub': 'sub', 'sup': i', 'th, 'S, acquiring the accuracy Pof an action of a relay protection device of the isubstation in a regional power grid ...
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