Transcription of ADAPTIVE NETWORK PROTECTION IN MICROGRIDS
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ADAPTIVE NETWORK PROTECTION IN MICROGRIDS Alexandre Oudalova, Antonio Fidigattib a ABB Switzerland Ltd., Corporate Research, Segelhof 1, CH-5405 D ttwil, Switzerland Phone +41 56 5868031, Fax +41 56 5867365 E-mail: b ABB SACE , Via Baioni 35, 24123, Bergamo, Italy Phone +39 035395359 E-mail: Keywords: MICROGRIDS ; ADAPTIVE PROTECTION ; distributed energy resources; islanded operation; relay settings; directional interlock ABSTRACT MICROGRIDS comprise low voltage distribution systems with distributed energy re-sources (DER) and controllable loads which can operate connected to the medium voltage grid or islanded in a controlled coordinated way.
Figure 1: Typical microgrid layout. In [11], authors have made short-circuit current calculations for a radial feeder with DER and observed that short-circuit currents, which are used in over-current (OC)
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