Adaptive, Cyber-Physical Special Protection Schemes to Defend the Electric Grid Against Predictable and Unpredictable Disturbances
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2021 IEEE Power and Energy Conference at Illinois, PECI 2021
Traditional protective relay voting schemes utilize simple logic to achieve confidence in relay trip actions. However, the smart grid is rapidly evolving and there are new needs for a next-generation relay voting scheme. In such new schemes, aspects such as inter-relay relationships and out-of-band data can be included. In this work, we explore the use of consensus algorithms and how they can be utilized for groups of relays to vote on system protection actions and also reach consensus on the values of variables in the system. A proposed design is explored with a simple case study with two different scenarios, including simulation in PowerWorld Simulator, to demonstrate the consensus algorithm benefits and future directions are discussed.
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