Social welfare maximization in transmission enhancement considering network congestion

Hongrui Liu, Yang Shen, Zelba B. Zabinsky, Chen Ching Liu, Alan Courts, Sung Kwan Joo

Research output: Contribution to journalArticlepeer-review

69 Citations (Scopus)

Abstract

Transmission enhancement in a competitive electricity market is analyzed in terms of its impact on the social welfare. A formulation of social welfare and the utility functions are derived in this research. Variations of supply and demand during a year are considered in transmission enhancement decisions. The proposed social welfare optimization problem is solved to determine the transmission congestion status under the optimal condition of the existing system. Transmission enhancement options are compared quantitatively to demonstrate their ability to increase social welfare, which provides valuable information for long-term transmission. The proposed method provides a systematic and quantitative tool for social welfare evaluation that is not available in industry today.

Original languageEnglish
Pages (from-to)1105-1114
Number of pages10
JournalIEEE Transactions on Power Systems
Volume23
Issue number3
DOIs
Publication statusPublished - 2008

Bibliographical note

Funding Information:
Manuscript received November 29, 2006; revised September 10, 2007. This work was supported in part by the National Science Foundation under Grants ECS0424022 and ECS0217701. Paper no. TPWRS-00835-2006. H. Liu and Z. B. Zabinsky are with the Department of Industrial Engineering, University of Washington, Seattle, WA 98195 USA (e-mail: hrliu@u.washington.edu; zelda@u.washington.edu). Y. Shen was with the Department of Industrial Engineering, University of Washington, Seattle, WA 98195 USA,and is now with Clearsight Systems, Inc., Bellevue, WA 98006 USA (e-mail: shyf_sea@hotmail.com). C.-C. Liu is with the Department of Electrical and Computer Engineering, Iowa State University, Ames, IA 50011 USA (e-mail: liu@iastate.edu). A. Courts is with Bonneville Power Administration, Portland, OR 97232 USA (e-mail: alcourts@bpa.gov). S.-K. Joo is with the School of Electrical Engineering, Korea University, Seoul 136-713, Korea (e-mail: skjoo@korea.ac.kr). Digital Object Identifier 10.1109/TPWRS.2008.926717

Keywords

  • Power market
  • Sequential quadratic programming (SQP)
  • Social welfare function (SWF)
  • Transmission congestion
  • Transmission enhancement

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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