Yang, B;
Katsaros, KV;
Chai, WK;
Pavlou, G;
(2018)
Cost-Efficient Low Latency Communication Infrastructure for Synchrophasor Applications in Smart Grids.
IEEE Systems Journal
, 12
(1)
pp. 948-958.
10.1109/JSYST.2016.2556420.
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Abstract
With the introduction of distributed renewable energy resources and new loads, such as electric vehicles, the power grid is evolving to become a highly dynamic system that necessitates continuous and fine-grained observability of its operating conditions. In the context of the medium voltage (MV) grid, this has motivated the deployment of phasor measurement units (PMUs), that offer high-precision synchronized grid monitoring, enabling mission-critical applications such as fault detection/location. However, PMU-based applications present stringent delay requirements, raising a significant challenge to the communication infrastructure. In contrast to the high voltage domain, there is no clear vision for the communication and network topologies for the MV grid; a full-fledged optical fiber-based communication infrastructure is a costly approach due to the density of PMUs required. In this study, we focus on the support of low-latency PMU-based applications in the MV domain, identifying and addressing the tradeoff between communication infrastructure deployment costs and the corresponding performance. We study a large set of real MV grid topologies to get an in-depth understanding of the various key latency factors. Building on the gained insights, we propose three algorithms for the careful placement of high capacity links, targeting a balance between deployment costs and achieved latencies. Extensive simulations demonstrate that the proposed algorithms result in low-latency network topologies while reducing deployment costs by up to 80% in comparison to a ubiquitous deployment of costly high capacity links.
| Type: | Article |
|---|---|
| Title: | Cost-Efficient Low Latency Communication Infrastructure for Synchrophasor Applications in Smart Grids |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1109/JSYST.2016.2556420 |
| Publisher version: | http://dx.doi.org/10.1109/JSYST.2016.2556420 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Phasor measurement units, Power grids, Delays, Network topology, Topology, Monitoring, State estimation |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1523757 |
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