RELIABILITY ANALYSIS OF MICROPROCESSOR SYSTEMS RELAY PROTECTION AND AUTOMATION FOR RAILWAY ENERGY SYSTEMS

Abstract

The analysis of faults of microprocessors relay protection and automation of energy systems forrailway transport faults and opportunities to increase their reliability by duplicating the method as ahardware so are software and calculation of reliability of structures that are investigated. The technicallevel of microprocessor devices of relay protection and automation usually considered from severalpositions: technical excellence and reliability of the devices, microprocessor-based protective relaying andautomation technology level, which determines the performance of the system microprocessor relayprotection and automation algorithms embedded security and automation; functionality of microprocessorrelay protection systems and automation; possibility of integrating relaying and automation microprocessorsystems in other systems. Invalid action relaying is one of the main causes of severe accidents thatoccasionally occur in energy systems - max globally. Therefore, the reliability of relay protection largelydepends on the reliability of the entire grid. Previously developed methods to increase reliability of attitudeto the old element base and microprocessor devices of relay protection and automation with a number offeatures that can not be taken into account in the calculation of these methods. It is necessary to develop newapproaches to design microprocessor devices of relay protection and automation and methodology forassessing the performance reliability of these systems.