Picture of person typing on laptop with programming code visible on the laptop screen

World class computing and information science research at Strathclyde...

The Strathprints institutional repository is a digital archive of University of Strathclyde's Open Access research outputs. Strathprints provides access to thousands of Open Access research papers by University of Strathclyde researchers, including by researchers from the Department of Computer & Information Sciences involved in mathematically structured programming, similarity and metric search, computer security, software systems, combinatronics and digital health.

The Department also includes the iSchool Research Group, which performs leading research into socio-technical phenomena and topics such as information retrieval and information seeking behaviour.


Traveling wave-based protection scheme for inverter-dominated microgrid using mathematical morphology

Li, X. and Dysko, A. and Burt, G. (2014) Traveling wave-based protection scheme for inverter-dominated microgrid using mathematical morphology. IEEE Transactions on Smart Grid, 5 (5). pp. 2211-2218. ISSN 1949-3053

Text (Li-etal-IEEE-TOSG-2014-Traveling-wave-based-protection-scheme-for-inverter)
Li_etal_IEEE_TOSG_2014_Traveling_wave_based_protection_scheme_for_inverter.pdf - Accepted Author Manuscript

Download (727kB) | Preview


Inverter-dominated microgrids impose significant challenges on the distribution network, as inverters are well known for their limited contribution to fault current, undermining the performance of traditional overcurrent protection schemes. This paper introduces a new protection scheme based on the initial current traveling wave utilizing an improved mathematical morphology (MM) technology, with simplified polarity detection and new logics introduced for meshed networks and feeders with single-end measurement. The proposed protection scheme provides ultrafast response and can be adapted to varied system operational modes, topologies, fault conditions, and load conditions. Only low-bandwidth communication is required to achieve high-speed operation and adequate discrimination level in meshed networks. Simulation in PSCAD/EMTDC verifies both the sensitivity and stability of the proposed protection scheme under different microgrid operational scenarios.