Improved Power Flow Robustness for Personal Computers

Daniel Tylavsky, Peter Crouch, Leslie F. Jarriel, Rambabu Adapa

Research output: Contribution to journalArticlepeer-review

13 Scopus citations


Mine electrical power flow solutions are often obtained using personal computers. Because of the limited precision used by the compilers on these machines, power flow solution procedures may diverge or possibly oscillate until the iteration limit is reached, even though an operable solution exists. A simple method is provided in this paper to create virtually extended-precision calculations in both full Newton-Raphson and decoupled power flow algorithms without the attendant slowdown associated with full double precision codes. Numerical results give a strong indication that the XB and BX decoupled algorithms with a successive iteration strategy (vis a vis the classical iteration strategy) and virtual-extended precision may perform well on mine electrical power flow problems.

Original languageEnglish (US)
Pages (from-to)1102-1108
Number of pages7
JournalIEEE Transactions on Industry Applications
Issue number5
StatePublished - 1992

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering


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