Joint Workload Scheduling and Energy Management for Green Data Centers Powered by Fuel Cells

Xiaoxuan Hu, Peng Li, Kun Wang, Yanfei Sun, Deze Zeng, Xiaoyan Wang, Song Guo

Research output: Journal article publicationJournal articleAcademic researchpeer-review

7 Citations (Scopus)

Abstract

The fuel cell is a promising power source for green data centers due to its high energy efficiency, low carbon emissions, and high reliability. However, because of the mechanical limitations related to fuel delivery, fuel cells are slow in adjusting power output when the energy demand quickly changes, which is called limited load following. Many recent work have studied to mitigate the limited load following by using energy storage to adjust energy supply, but achieves limited successes because of the constraint of energy storage size. In this paper, we address this challenge by changing both energy supply and demand, via joint workload scheduling and energy management. Specifically, we consider multiple geo-distributed data centers powered by both fuel cells and energy storage. An online algorithm has been proposed to minimize the gap between energy supply and demand by jointly managing the fuel cells output and migrating workloads among data centers. Simulations results based on real-world traces show that the proposed algorithms can achieve satisfactory performance.

Original languageEnglish
Article number8616794
Pages (from-to)397-406
Number of pages10
JournalIEEE Transactions on Green Communications and Networking
Volume3
Issue number2
DOIs
Publication statusPublished - 1 Jun 2019

Keywords

  • cost minimization
  • data center
  • Fuel cell
  • job scheduling
  • Lyapunov optimization

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Renewable Energy, Sustainability and the Environment

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