eprintid: 1523757 rev_number: 32 eprint_status: archive userid: 608 dir: disk0/01/52/37/57 datestamp: 2016-11-01 14:54:09 lastmod: 2021-09-25 23:11:40 status_changed: 2018-06-05 16:56:43 type: article metadata_visibility: show creators_name: Yang, B creators_name: Katsaros, KV creators_name: Chai, WK creators_name: Pavlou, G title: Cost-Efficient Low Latency Communication Infrastructure for Synchrophasor Applications in Smart Grids ispublished: pub divisions: UCL divisions: B04 divisions: C05 divisions: F46 keywords: Phasor measurement units, Power grids, Delays, Network topology, Topology, Monitoring, State estimation note: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. 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. date: 2018-03 date_type: published official_url: http://dx.doi.org/10.1109/JSYST.2016.2556420 oa_status: green full_text_type: other language: eng primo: open primo_central: open_green article_type_text: Journal Article verified: verified_manual elements_id: 1136408 doi: 10.1109/JSYST.2016.2556420 language_elements: English lyricists_name: Pavlou, George lyricists_name: Yang, Binxu lyricists_id: GPAVL62 lyricists_id: BYANG50 actors_name: Pavlou, George actors_id: GPAVL62 actors_role: owner full_text_status: public publication: IEEE Systems Journal volume: 12 number: 1 pagerange: 948-958 issn: 1932-8184 citation: 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 <https://doi.org/10.1109/JSYST.2016.2556420>. Green open access document_url: https://discovery.ucl.ac.uk/id/eprint/1523757/1/Yang_Cost-Efficient%20Low%20Latency%20Communication%20Infrastructure%20for%20Synchrophasor%20Applications%20in%20Smart%20Grids_AAM.pdf