Guangdong University of Technology

Other

Ruiwen He

Yiyu Lin

Hao Peng

Jialiang Lu

Yuan Jin

Yiyin Wang

Jing Zhong

Jianhua Deng

Ruisi Li

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.

Pilot protection method, device and storage medium

Disclosed is a simulation design method for bay layer devices of a smart substation. Application layer modules of two network structures store identity tags of each other's application layer modules respectively, so that a simulation model of the bay layer devices has ports of both network structures and can realize data sharing. The simulation model of the bay layer devices can process SV messages, GOOSE messages and MMS messages simultaneously. An interface layer is additionally configured between an application layer and a data link layer to allow data to be directly mapped to the data link layer from the application layer, so that received or transmitted messages contain actual electrical quantity information. The invention provides model establishment methods of two network structures, thus not only suitable for simulation of the bay layer devices, but also suitable for simulation of station control layer devices and process layer devices.

Simulation design method for bay layer devices of smart substation

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.

Method and device for reliability assessment of wide area protection system

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Guangzhou, China

Ruiwen He