Stability Enhancement of a Multi-machine System using a Generalized Unified Power Flow Controller (GUPFC)

Ha Thi Nguyen, Li Wang

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

The generalized unified power-flow controller (GUPFC) is one of the latest-generation devices of flexible AC transmission systems (FACTS), which can be used to control the power flow of multiple transmission lines, increase loadability of the power system, improve power-system stability, etc. In this paper, the simulation results of a fourmachine system using the proposed GUPFC to improve power quality and achieve damping improvement are presented. The proposed GUPFC is designed to contribute adequate damping characteristics and enhance power quality of the studied multi-machine system under various operating conditions using MATLAB/SIMULINK toolbox. A time-domain scheme based on a nonlinear-system model subject to a three-phase short-circuit fault at the transmission line is performed to examine the effectiveness of the proposed control scheme. It can be concluded from the comparative simulated results of the studied system with and without the proposed GUPFC that the proposed GUPFC has superior characteristics for improving the stability of the studied system subject to a severe disturbance
Original languageEnglish
Title of host publicationProceedings of 2nd International Conference on Green Technology and Sustainable Development
Number of pages6
Publication date2014
Publication statusPublished - 2014
Externally publishedYes
Event2nd International Conference on Green Technology and Sustainable Development - Ho Chi Minh City, Viet Nam
Duration: 30 Oct 201431 Oct 2014

Conference

Conference2nd International Conference on Green Technology and Sustainable Development
CountryViet Nam
CityHo Chi Minh City
Period30/10/201431/10/2014

Keywords

  • Multi-machine system
  • Generalized unified power-flow controller
  • Power quality
  • Flexible AC transmission systems
  • Damping improvement

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