We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
IEC 61850-Based Centralized Protection against Single Line-To-Ground Faults in Ungrounded Distribution Systems.
- Authors
Nam, Soon-Ryul; Ko, Woong-Hie; Key, Sopheap; Kang, Sang-Hee; Lee, Nam-Ho; Kalam, Akhtar; Ahn, Seon-Ju; Kang, Hyun-Koo
- Abstract
We developed an International Electrotechnical Commission (IEC) 61850-based centralized protection scheme to prevent single line-to-ground (SLG) faults in the feeders and busbars of ungrounded distribution systems. Each feeder intelligent electronic device (IED) measures its zero-sequence current and voltage signals and periodically transmits zero-sequence phasors to a central IED via a Generic Oriented Object Substation Event message. Using the zero-sequence phasors, the central IED detects SLG faults in feeders and busbars. To achieve centralized protection, angle differences between the zero-sequence currents and voltage phasors are exploited, and their calculation compensates for data desynchronization. The feeder IEDs were implemented using the MMS-EASE Lite library, while the transmitted zero-sequence phasors were calculated based on fault signals simulated by Power System Computer Aided Design / Electro-Magnetic Transient Design and Control (PSCAD/EMTDC). The central IED determined if the SLG fault was in a feeder or busbar by aggregating and analyzing the zero-sequence phasors received from the feeder IEDs. The results confirmed the validity and efficiency of our centralized protection scheme.
- Subjects
INTERNATIONAL Electrotechnical Commission; COMPUTER-aided design; BUS conductors (Electricity); OVERCURRENT protection; ELECTRONIC equipment; COMPUTER systems
- Publication
Energies (19961073), 2021, Vol 14, Issue 3, p722
- ISSN
1996-1073
- Publication type
Article
- DOI
10.3390/en14030722