公开(公告)号：US11035896B2

公开(公告)日：2021-06-15

申请号：US16390002

申请日：2019-04-22

申请人： GUANGDONG UNIVERSITY OF TECHNOLOGY

发明人： Ruiwen He ,  Hao Peng ,  Jing Zhong ,  Jianhua Deng

IPC分类号： G01R31/08

摘要： 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: S1, acquiring an information acceptance rate d of a wide area monitoring center of a wide area protection system; S2, obtaining the accuracy psf(d) of wide area protection initiation, the accuracy pfz(d) of fault area positioning and the accuracy pfc(d) of fault element recognition according to the information acceptance rate d; and S3, multiplying the accuracy psf(d) of wide area protection initiation, the accuracy pfz(d) of fault area positioning and the accuracy pfc(d) of fault element recognition to obtain the decision accuracy Pdmp of the wide area protection system.

公开(公告)号：US11756352B2

公开(公告)日：2023-09-12

申请号：US18052576

申请日：2022-11-04

申请人： Guangdong University of Technology

发明人： Ruiwen He ,  Ruisi Li ,  Yuan Jin ,  Yiyu Lin

IPC分类号： G07C5/08 ,  G06F18/25 ,  G06F123/02

CPC分类号： G07C5/0816 ,  G06F18/251 ,  G07C5/0808 ,  G06F2123/02

摘要： A pilot protection method includes: obtaining time-domain signals data of target element at a preset sampling frequency; fusing time-domain signals data of multiple first sampling periods to obtain first time-domain signals combination data; based on a machine learning model, determining whether a fault occurs in target element according to the first time-domain signals combination data; when it is determined that a fault occurs in target element according to the first time-domain signals combination data, based on the machine learning model, determining whether a fault occurs in target element in the second sampling period according to the second time-domain signals combination data. The second sampling period is the sampling period after determining a fault occurs; when it is determined that the same type of fault occurs in target element in multiple consecutive second sampling periods, the pilot protection system is controlled to perform the protection action on the target element.