A novel and fast voltage estimation scheme for assessment of power system component outages

• Masoud Fatemi ^[1] ; Mehrdad Abedi ^[1] ; Behrooz Vahidi ^[1] ; Sajjad Abedi ^[1] ; Hassan Rastegar ^[1]
  1. [1] Amirkabir University of Technology

     Amirkabir University of Technology

     Irán

     
• Localización: Compel: International journal for computation and mathematics in electrical and electronic engineering, ISSN 0332-1649, Vol. 33, Nº 4 (Special Issue: SCEE 2012), 2014, págs. 1296-1328
• Idioma: inglés
• Enlaces
  • Texto completo
• Resumen

  • Purpose – The purpose of this paper is to pursue two following main goals: first, theorizing a new concept named as equivalent bus load in order to make a promising simplification over power system analysis. Second, proposing an outstanding fast and simple approach based on introduced concept for voltage estimation after multiple component outages while satisfying required accuracy.

    Design/methodology/approach – Equivalent load bus theory introduces three transfer matrices that describe power system topology. Mentioned matrices could be calculated simply after system reconfiguration without matrix inversion. Using transfer matrices a large-scale power system can be modeled by a simple two-bus power system from the viewpoint of any desired bus so that load flow calculation leads to same value. The analysis of simplified power system yields to extract a new incremental model based on equivalent bus load theory that will be distinguished as an outstanding fast method for voltage estimation aim.

    Findings – A deep study for fast voltage estimation aim is dedicated to evaluate proposed method from the accuracy and quickness point of view and the outcomes are compared to a well-known method as Distribution Factors (DF). Results and computational times unveil that presented approach is more accurate and much faster.

    Originality/value – A novel and new fast voltage estimation method for assessment of power system component outages is introduced.