摘要
随着全球分布的数据中心大量部署和云计算服务需求激增,其高运行能耗和碳污染问题日益严重。针对这种新兴的高能耗负荷,如何缓和数据中心碳足迹的有害影响,实现碳达峰、碳中和"3060"目标成为一项重要挑战。该文基于数据中心计算负荷的灵活可控性和全球多区域可再生能源时空分布互补性,提出时–空双维度任务迁移机制实现互联多数据中心碳中和。通过延时容忍型任务,在多数据中心间的空间迁移,满足计算负荷与清洁能源出力在大时间尺度上匹配,并配合任务在单体数据中心的时域迁移,实时追踪可再生能源功率波动以最大化消纳可再生能源,从而以时空优化互补的方式实现多数据中心高运行能耗所造成碳排放的时空转移,实现碳中和。最后,使用真实的数据中心算例验证所提出的多数据中心碳中和调控策略的性能和普遍适用性。通过实验对比,所提调控策略能够实现任务负荷与可再生能源的最优匹配,显著降低不同规模的互联多数据中心碳排放量,缓解多数据中心集群碳污染,实现全球大规模部署数据中心碳中和。
With the massive deployment of globally distributed data centers and the surge in demand for cloud computing services,their high operational energy consumption and carbon pollution are becoming problematic.In response to this emerging high energy consumption load,it is a critical challenge to mitigate the harmful effects of the datacenters’carbon footprint and achieve the“3060”goals of carbon peak and carbon neutrality.Based on the flexible controllability of computing load in datacenters and the complementarity of temporal and spatial distribution of renewable energy in global multi-regions,the spatio-temporal task migration in dual-dimension was proposed to achieve the carbon neutrality of interconnected datacenters.Spatial migration among datacenters was used to matching computing load and renewable power on a large time scale,and with the time-domain migration in a single datacenter,the fluctuation of renewable power was tracked in real-time to maximize the consumption of renewable energy,and the spatial and temporal transfer of carbon emissions caused by corresponding power loads was realized in a spatiotemporal complementary manner,converging to the carbon neutrality.Finally,the paper verified the performance and universal applicability of the proposed multi-datacenter carbon neutral regulation strategy using real datacenter arithmetic examples.Through experimental comparison,the proposed regulation strategy can achieve the optimal matching of task load and renewable energy,significantly reduce the carbon emissions of interconnected datacenters of different scales,mitigate the carbon pollution of datacenter clusters,and realize the carbon neutrality of datacenters in large-scale global deployment.
作者
杨挺
姜含
侯昱丞
耿毅男
YANG Ting;JIANG Han;HOU Yucheng;GENG Yinan(School of Electrical Automation and Information Engineering,Tianjin University,Nankai District,Tianjin 300072,China)
出处
《中国电机工程学报》
EI
CSCD
北大核心
2022年第1期164-176,共13页
Proceedings of the CSEE
基金
国家重点研发计划项目(2017YFE0132100)
国家自然科学基金项目(61971305)
天津市研究生科研创新项目(2020YJSB011)。
关键词
多数据中心
碳中和
可再生能源
任务迁移
multi-datacenter
carbon neutral
renewable energy
task migration
