Open AccessState evaluation of relay protection system for state maintenance
Author(s) -
Jicheng Wang,
Pengfei Yang,
X L Chen,
Zhong Ren,
X Y Wang,
Jian–Qiang Lü
Publication year - 2019
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/354/1/012120
Subject(s) - relay , reliability engineering , reliability (semiconductor) , electric power system , state (computer science) , digital protective relay , protective relay , condition based maintenance , power (physics) , engineering , computer science , physics , algorithm , quantum mechanics
Relay protection is the first line of defense for power systems. Its reliable operation is an important guarantee for the safety and stability of power system. At present, Chinese relay protection system has long been implemented with regular planned maintenance and repaired supplemented by after-accident maintenance. This maintenance system has greatly caused the loss and waste of manpower, material resources and financial resources. It is urgently necessary to adopt a reasonable maintenance strategy based on the actual operating state of relay protection. The state maintenance of the relay protection system can formulate the maintenance strategy based on the actual operating state of the relay protection system, which can effectively improve the reliability of the relay protection system. Therefore, this paper studies the state evaluation of the relay protection system for state maintenance. Develop maintenance strategy based on the evaluation results of the current operating state of the protection system. It is of great significance to strengthen the reliability and operation level of the relay protection system and ensure the safe operation of the power grid.