Unbalanced modelling of STATCOM and SVC in hybrid load flow method

Waleed Alabri , Dilan Jayaweera

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

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Modern power distribution systems are installed with a number of distributed power generation. Increased integration of distributed power generation makes the distribution system vulnerable to unbalanced operating conditions. This would then require the support of Flexible AC Transmission System (FACTS) devices for a smooth operation of the distribution system. Unbalanced power system operation requires an unbalanced load flow analysis in order to assess true system feasibility. This paper presents an innovative unbalance load flow analysis method with the presence of unbalanced operation of SVCs (Static Var Compensators) and STATCOMs (STATic synchronous COMpensators). Unlike the existing methods, the proposed method applies reduced steps in the calculation, and the parameter limits of FACTS devices are dynamically determined in an iterative process. Case studies demonstrate its improved convergence characteristics, reduced computing demand and the robustness of the solution.
Original languageEnglish
Title of host publicationProceedings of 2019 IEEE PES Innovative Smart Grid Technologies Europe, ISGT-Europe 2019
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
ISBN (Electronic)9781538682180, 9781538682173
ISBN (Print)9781538682197
Publication statusPublished - 21 Nov 2019
Event2019 IEEE PES Innovative Smart Grid Technologies Europe (ISGT-Europe) - University POLITEHNICA of Bucharest, Bucharest, Romania
Duration: 29 Sept 20192 Oct 2019

Publication series

NameIEEE PES Innovative Smart Grid Technologies Europe (ISGT-Europe)


Conference2019 IEEE PES Innovative Smart Grid Technologies Europe (ISGT-Europe)
Abbreviated titleIGST Europe 2019


  • Power Distribution System
  • Smart Power Distribution System
  • Unbalanced Load Flow
  • Voltage Unbalance

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


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