The Impact of Grid Uncertainties on Optimal Transmission Switching

Tian Lan, Garng M. Huang, Zhangxin Zhou

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

Abstract

Optimal transmission switching is proposed to reduce transmission congestion and optimize the system operational cost. Such switching decisions are usually determined in the day-ahead stage. However, the load and renewable generation forecasts may have significant deviations from the actual values in the next day. Thus, grid uncertainty is a critical factor in the decision-making process of optimal transmission switching. This paper investigates different approaches for optimal transmission switching under uncertainties. Deterministic optimization methods and stochastic programming methods are compared through a series of numerical studies. And the impact of grid uncertainties on optimal transmission switching is analyzed. The numerical analysis on the IEEE-118 bus system shows that the deterministic approaches can perform well when there are only small uncertainties in the grid. However, the stochastic programming approach is more preferable when significant uncertainties exist in the system.

Original languageEnglish
Title of host publication2019 IEEE PES Innovative Smart Grid Technologies Asia, ISGT 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages3179-3184
Number of pages6
ISBN (Electronic)9781728135205
DOIs
Publication statusPublished - May 2019
Event2019 IEEE PES Innovative Smart Grid Technologies Asia, ISGT 2019 - Chengdu, China
Duration: 21 May 201924 May 2019

Publication series

Name2019 IEEE PES Innovative Smart Grid Technologies Asia, ISGT 2019

Conference

Conference2019 IEEE PES Innovative Smart Grid Technologies Asia, ISGT 2019
CountryChina
CityChengdu
Period21/5/1924/5/19

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Keywords

  • Optimal transmission switching
  • grid uncertainties
  • optimization
  • power system planning
  • stochastic programming

ASJC Scopus subject areas

  • Artificial Intelligence
  • Computer Networks and Communications
  • Energy Engineering and Power Technology
  • Renewable Energy, Sustainability and the Environment
  • Electrical and Electronic Engineering
  • Control and Optimization

Cite this

Lan, T., Huang, G. M., & Zhou, Z. (2019). The Impact of Grid Uncertainties on Optimal Transmission Switching. In 2019 IEEE PES Innovative Smart Grid Technologies Asia, ISGT 2019 (pp. 3179-3184). [8881814] (2019 IEEE PES Innovative Smart Grid Technologies Asia, ISGT 2019). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ISGT-Asia.2019.8881814