Combining cooperation and storage for the integration of renewable energy in smart grids

Subhash Lakshminarayana, Tony Q.S. Quek, H. Vincent Poor

Research output: Chapter in Book/Report/Conference proceedingConference contribution

9 Scopus citations

Abstract

Two different techniques for the integration of renewable energy in smart grid systems are considered. The first is storage, which smooths the fluctuations of the renewable energy generation across time. The second is the concept of distributed generation combined with cooperation by exchanging energy among the distributed sources. This technique leads to energy aggregation from diverse sources, which averages out the variation in the energy production across space. The trade-off present between the two techniques is analyzed, and the optimal combination of storage and cooperation to achieve a certain grid performance is investigated. The problem is formulated as a stochastic optimization problem with the objective of minimizing the time average cost of energy exchange within the grid. First, an analytical model of the optimal cost is provided by investigating the steady state of the system for some specific scenarios. Then, an algorithm to solve the cost minimization problem using the technique of Lyapunov optimization is developed. The algorithm is implemented on the renewable energy data provided by National Renewable Energy Laboratory (NREL) of the United States. The results show that in the presence of limited storage devices, the grid can benefit greatly from cooperation, whereas in the presence of large storage, cooperation does not yield much benefit.

Original languageEnglish (US)
Title of host publication2014 IEEE Conference on Computer Communications Workshops, INFOCOM WKSHPS 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages622-627
Number of pages6
ISBN (Print)9781479930883
DOIs
StatePublished - Jan 1 2014
Event2014 IEEE Conference on Computer Communications Workshops, INFOCOM WKSHPS 2014 - Toronto, ON, Canada
Duration: Apr 27 2014May 2 2014

Publication series

NameProceedings - IEEE INFOCOM
ISSN (Print)0743-166X

Other

Other2014 IEEE Conference on Computer Communications Workshops, INFOCOM WKSHPS 2014
CountryCanada
CityToronto, ON
Period4/27/145/2/14

All Science Journal Classification (ASJC) codes

  • Computer Science(all)
  • Electrical and Electronic Engineering

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