Multiphase load-flow solution for large-scale distribution systems using MANA

Ilhan Kocar, Jean Mahseredjian, Ulas Karaagac, Gurkan Soykan, Omar Saad

Research output: Journal article publicationJournal articleAcademic researchpeer-review

69 Citations (Scopus)


The unbalanced nature of distribution systems requires a multiphase load-flow solution capable of handling arbitrary network topologies and providing accurate results. The need for detailed analysis of secondary grid systems found in dense urban areas and the modeling of distribution networks including the subtransmission level requires using highly efficient and large-scale system-capable methods. In this paper, three different load-flow solution algorithms are presented using the modified-augmented-nodal-analysis formulation. The load-flow solution algorithms are compared for the IEEE 8500-node distribution test feeder using a proposed regulator tap control strategy.
Original languageEnglish
Article number6624122
Pages (from-to)908-915
Number of pages8
JournalIEEE Transactions on Power Delivery
Issue number2
Publication statusPublished - 1 Jan 2014
Externally publishedYes


  • Distribution systems
  • Fixed-point iterations
  • Load flow
  • Modified augmented nodal analysis (MANA)
  • Newton's method
  • Unbalanced network

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering


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