publication . Preprint . Conference object . Article . Other literature type . 2011

Optimal Power Cost Management Using Stored Energy in Data Centers

Urgaonkar, Rahul; Urgaonkar, Bhuvan; Neely, Michael J.; Sivasubramaniam, Anand;
Open Access English
  • Published: 07 Jun 2011
Abstract
Since the electricity bill of a data center constitutes a significant portion of its overall operational costs, reducing this has become important. We investigate cost reduction opportunities that arise by the use of uninterrupted power supply (UPS) units as energy storage devices. This represents a deviation from the usual use of these devices as mere transitional fail-over mechanisms between utility and captive sources such as diesel generators. We consider the problem of opportunistically using these devices to reduce the time average electric utility bill in a data center. Using the technique of Lyapunov optimization, we develop an online control algorithm t...
Subjects
free text keywords: Computer Science - Performance, Computer Science - Systems and Control, Mathematics - Optimization and Control, Cost accounting, Electricity, business.industry, business, Lyapunov optimization, Cost reduction, Average cost, Computer science, Power management, Real-time computing, Data center, Electric utility, Computer Networks and Communications, Hardware and Architecture, Software
Funded by
NSF| CAREER: "Analysis and Control of Network Delay"
Project
  • Funder: National Science Foundation (NSF)
  • Project Code: 0747525
  • Funding stream: Directorate for Computer & Information Science & Engineering | Division of Computing and Communication Foundations
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publication . Preprint . Conference object . Article . Other literature type . 2011

Optimal Power Cost Management Using Stored Energy in Data Centers

Urgaonkar, Rahul; Urgaonkar, Bhuvan; Neely, Michael J.; Sivasubramaniam, Anand;