A new method for fault identification of T-connection transmission line based on multi-scale traveling wave reactive power and random forest.

ABSTRACT: Though the traditional fault diagnosis method of T-connected transmission lines can identify the faults inside and outside the area, it can not identify the specific branches. To improve the accuracy and reliability of fault diagnosis of T-connection transmission lines, a new method is proposed to identify specific faulty branches of T-connection transmission lines based on multi-scale traveling wave reactive power and random forest. Based on the S-transform, the mean and sum ratios of the corresponding short-time series traveling wave reactive powers of each two traveling wave protection units at multiple frequencies are calculated respectively to form the fault feature vector sample set of the T-connection transmission line. A random forest fault branch identification model is establishe

SUBMITTER: Zhong Y 

PROVIDER: S-EPMC10437885 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature