Open AccessTraveling‐wave‐based protection of parallel transmission lines using Teager energy operator and fuzzy systems
Author(s) -
Hasheminejad Saeid,
Seifossadat Seyed Ghodratollah,
Razaz Morteza,
Joorabian Mahmood
Publication year - 2016
Publication title -
iet generation, transmission and distribution
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.92
H-Index - 110
eISSN - 1751-8695
pISSN - 1751-8687
DOI - 10.1049/iet-gtd.2015.0947
Subject(s) - energy operator , fault (geology) , fuzzy logic , electric power transmission , matlab , modal , algorithm , energy (signal processing) , transmission system , transmission (telecommunications) , operator (biology) , computer science , component (thermodynamics) , engineering , control theory (sociology) , electronic engineering , mathematics , artificial intelligence , electrical engineering , telecommunications , physics , repressor , chemistry , biochemistry , control (management) , transcription factor , statistics , gene , operating system , thermodynamics , seismology , polymer chemistry , geology
This study proposes an intelligent traveling‐wave (TW)‐based protection algorithm for parallel transmission lines. In the proposed algorithm, Karenbauer's phase to modal transform is applied on three phase current signals. Teager energy operator is then applied on the modal components to extract TWs. First extracted TW of each modal component along with well‐designed fuzzy systems are used for internal fault identification and fault type classification. In order to find the fault location, the time difference between the first and the second TWs and the TW propagation speed are utilised. Test signals are generated in PSCAD/EMTDC software and the algorithm is implemented in MATLAB. Results show that the proposed algorithm is an ultra‐high‐speed algorithm for the reliable protection of parallel transmission lines.