Resilient power systems operation with offshore wind farms and cloud data centers

To enhance the resilience of power systems with offshore wind farms (OWFs), a proactive scheduling scheme is proposed to unlock the flexibility of cloud data centers (CDCs) responding to uncertain spatial and temporal impacts induced by hurricanes. The total life simulation (TLS) is adopted to proje...

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Main Authors: Liu, Shengwei, Li, Yuanzheng, Liu, Xuan, Zhao, Tianyang, Wang, Peng
Other Authors: School of Electrical and Electronic Engineering
Format: Article
Language:English
Published: 2024
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Online Access:https://hdl.handle.net/10356/173907
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1739072024-03-08T15:40:23Z Resilient power systems operation with offshore wind farms and cloud data centers Liu, Shengwei Li, Yuanzheng Liu, Xuan Zhao, Tianyang Wang, Peng School of Electrical and Electronic Engineering Engineering Cloud computing data center Decomposition To enhance the resilience of power systems with offshore wind farms (OWFs), a proactive scheduling scheme is proposed to unlock the flexibility of cloud data centers (CDCs) responding to uncertain spatial and temporal impacts induced by hurricanes. The total life simulation (TLS) is adopted to project the local weather conditions at transmission lines and OWFs, before, during, and after the hurricane. The static power curve of wind turbines (WTs) is used to capture the output of OWFs, and the fragility analysis of transmission-line components is used to formulate the time-varying failure rates of transmission lines. A novel distributionally robust ambiguity set is constructed with a discrete support set, where the impacts of hurricanes are depicted by these supports. To minimize load sheddings and dropping workloads, the spatial and temporal demand response capabilities of CDCs according to task migration and delay tolerance are incorporated into resilient management. The flexibilities of CDC's power consumption are integrated into a two-stage distributionally robust optimization problem with conditional value at risk (CVaR). Based on Lagrange duality, this problem is reformulated into its deterministic counterpart and solved by a novel decomposition method with hybrid cuts, admitting fewer iterations and a faster convergence rate. The effectiveness of the proposed resilient management strategy is verified through case studies conducted on the modified IEEE-RTS 24 system, which includes 4 data centers and 5 offshore wind farms. Published version This work was supported by the State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources under Grant LAPS21002, the State Key Laboratory of Disaster Prevention and Reduction for Power Grid Transmission and Distribution Equipment under Grant SGHNFZ00FBYJJS2100047. 2024-03-05T08:00:15Z 2024-03-05T08:00:15Z 2023 Journal Article Liu, S., Li, Y., Liu, X., Zhao, T. & Wang, P. (2023). Resilient power systems operation with offshore wind farms and cloud data centers. CSEE Journal of Power and Energy Systems, 9(6), 1985-1998. https://dx.doi.org/10.17775/CSEEJPES.2022.01470 2096-0042 https://hdl.handle.net/10356/173907 10.17775/CSEEJPES.2022.01470 2-s2.0-85179587600 6 9 1985 1998 en CSEE Journal of Power and Energy Systems © 2022 CSEE. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Engineering
Cloud computing data center
Decomposition
spellingShingle Engineering
Cloud computing data center
Decomposition
Liu, Shengwei
Li, Yuanzheng
Liu, Xuan
Zhao, Tianyang
Wang, Peng
Resilient power systems operation with offshore wind farms and cloud data centers
description To enhance the resilience of power systems with offshore wind farms (OWFs), a proactive scheduling scheme is proposed to unlock the flexibility of cloud data centers (CDCs) responding to uncertain spatial and temporal impacts induced by hurricanes. The total life simulation (TLS) is adopted to project the local weather conditions at transmission lines and OWFs, before, during, and after the hurricane. The static power curve of wind turbines (WTs) is used to capture the output of OWFs, and the fragility analysis of transmission-line components is used to formulate the time-varying failure rates of transmission lines. A novel distributionally robust ambiguity set is constructed with a discrete support set, where the impacts of hurricanes are depicted by these supports. To minimize load sheddings and dropping workloads, the spatial and temporal demand response capabilities of CDCs according to task migration and delay tolerance are incorporated into resilient management. The flexibilities of CDC's power consumption are integrated into a two-stage distributionally robust optimization problem with conditional value at risk (CVaR). Based on Lagrange duality, this problem is reformulated into its deterministic counterpart and solved by a novel decomposition method with hybrid cuts, admitting fewer iterations and a faster convergence rate. The effectiveness of the proposed resilient management strategy is verified through case studies conducted on the modified IEEE-RTS 24 system, which includes 4 data centers and 5 offshore wind farms.
author2 School of Electrical and Electronic Engineering
author_facet School of Electrical and Electronic Engineering
Liu, Shengwei
Li, Yuanzheng
Liu, Xuan
Zhao, Tianyang
Wang, Peng
format Article
author Liu, Shengwei
Li, Yuanzheng
Liu, Xuan
Zhao, Tianyang
Wang, Peng
author_sort Liu, Shengwei
title Resilient power systems operation with offshore wind farms and cloud data centers
title_short Resilient power systems operation with offshore wind farms and cloud data centers
title_full Resilient power systems operation with offshore wind farms and cloud data centers
title_fullStr Resilient power systems operation with offshore wind farms and cloud data centers
title_full_unstemmed Resilient power systems operation with offshore wind farms and cloud data centers
title_sort resilient power systems operation with offshore wind farms and cloud data centers
publishDate 2024
url https://hdl.handle.net/10356/173907
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