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Randomized auction design for electricity markets between grids and microgrids

Published: 16 June 2014 Publication History

Abstract

This work studies electricity markets between power grids and microgrids, an emerging paradigm of electric power generation and supply. It is among the first that addresses the economic challenges arising from such grid integration, and represents the first power auction mechanism design that explicitly handles the Unit Commitment Problem (UCP), a key challenge in power grid optimization previously investigated only for centralized cooperative algorithms. The proposed solution leverages a recent result in theoretical computer science that can decompose an optimal fractional (infeasible) solution to NP-hard problems into a convex combination of integral (feasible) solutions. The end result includes randomized power auctions that are (approximately) truthful and computationally efficient, and achieve small approximation ratios for grid-wide social welfare under UCP constraints and temporal demand correlations. Both power markets with grid-to-microgrid and microgrid-to-grid energy sales are studied, with an auction designed for each, under the same randomized power auction framework. Trace driven simulations are conducted to verify the efficacy of the two proposed inter-grid power auctions.

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cover image ACM Conferences
SIGMETRICS '14: The 2014 ACM international conference on Measurement and modeling of computer systems
June 2014
614 pages
ISBN:9781450327893
DOI:10.1145/2591971
Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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Published: 16 June 2014

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Author Tags

  1. approximation algorithms
  2. mechanism design
  3. microgrids
  4. power grid
  5. unit commitment problem

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SIGMETRICS '14 Paper Acceptance Rate 40 of 237 submissions, 17%;
Overall Acceptance Rate 459 of 2,691 submissions, 17%

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