ANALYSIS OF PROTECTIVE RELAYING OPERATION AND RELATED POWER SYSTEM INTERACTION

摘要

Advanced techniques for analysing operation of protective relays and related interactions with the power system are discussed. Three major issues are addressed: evaluation of existing physical relays, study of new and/or existing relays using relay models, and assessment of relay operation and its interaction with the power system using models of both relays and power system. The underlying approach is based on an advanced modelling and simulation environment as well as the use of digital power system simulators capable of interfacing with physical relays. Such advanced analysis techniques are needed to provide improved protective relaying reliability and system performance.