Presentation Details
| Testing Commercial Non-Export DER Controllers for Low-Voltage Spot Network Interconnections Nicholas S.Gurule1, Matthew J.Reno1, Joseph A.Azzolini1, Santiago Sena2, Chelsea Collette2, Ali Bidram3. 1Sandia National Laboratories, Albuquerque, NM, USA.2Public Service Company of New Mexico, Albuquerque, NM, USA.3University of New Mexico, Albuquerque, NM, USA |
Abstract
Legacy fault protection schemes for the low voltage spot networks operate based on reverse current flow to ensure the secure detection and isolation of faults on primary feeders. However, the interconnection of localized generation within spot networks is severely limited by the network protector reverse power protection. As non-export distributed energy resources (DER) power control systems (PCS) become more common, there are open questions surrounding their compatibility with legacy protection schemes, specifically whether non-export PCS could allow for additional interconnections in low-voltage networks without new protection hardware or communication with the substation. This paper performs hardware experiments of commercially available meters and controllers with non-export functionality to test the speed and compliance of UL 1741 and UL 3141 PCS and their interaction with network protectors used for fault detection in spot networks.
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No part of this publication may be reproduced, distributed, or transmitted in any form or by any means, including photocopying, recording, or other electronic or mechanical methods, without the prior written permission of the author.