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A Communication-Assisted Protection Strategy for Inverter-Based Medium-Voltage Microgrids

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3 Author(s)
Zamani, M.A. ; Dept. of Electr. & Comput. Eng., Univ. of Western Ontario, London, ON, Canada ; Yazdani, A. ; Sidhu, T.S.

This paper proposes a communication-assisted protection strategy implementable by commercially available microprocessor-based relays for the protection of medium-voltage microgrids. Even though the developed protection strategy benefits from communications, it offers a backup protection strategy to manage communication network failures. The paper also introduces the structure of a relay that enables the proposed protection strategy. Comprehensive simulation studies are carried out to verify the effectiveness of the proposed protection strategy under different fault scenarios, in the PSCAD/EMTDC software environment.

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Smart Grid, IEEE Transactions on  (Volume:3 ,  Issue: 4 )