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Energy Cost Minimization for Distributed Internet Data Centers in Smart Microgrids Considering Power Outages

机译:考虑断电的智能微电网中分布式Internet数据中心的能源成本最小化

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In this paper, we investigate the problem of minimizing energy cost for distributed Internet data centers (IDCs) in smart microgrids while taking system dynamics into consideration. Specifically, IDC operators expect to minimize the long-term energy cost with the uncertainties in electricity price, workload, renewable energy generation, and power outage state. At first, we formulate the problem as a stochastic program that captures service request distribution, server provisioning, energy storage management, generator scheduling, power transactions between smart microgrids, and main grids. Second, we use the Lyapunov optimization technique to design an operation algorithm, which enables an explicit tradeoff between energy cost saving and battery investment cost. Finally, the effectiveness of the proposed algorithm is evaluated with practical data.
机译:在本文中,我们研究了在考虑系统动力学的同时将智能微电网中的分布式Internet数据中心(IDC)的能源成本降至最低的问题。具体来说,IDC运营商希望通过电价,工作量,可再生能源发电和断电状态的不确定性来最大限度地降低长期能源成本。首先,我们将问题描述为一个随机程序,该程序捕获服务请求分配,服务器配置,能量存储管理,发电机调度,智能微电网与主电网之间的电力交易。其次,我们使用李雅普诺夫(Lyapunov)优化技术设计一种运算算法,该运算算法可在节能成本和电池投资成本之间进行明确的权衡。最后,结合实际数据对所提算法的有效性进行了评估。

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