Optimization of a Power Transient Stability Program on a Vector Supercomputer, Theory and Applications

Abstract

Detailed simulations of large interconnected power distribution systems currently cannot be performed. Vector supercomputers have the capability to solve the great number of differential and non-linear simultaneous equations associated with the models, but programs have not been developed for them. This thesis investigates the optimization of a current power stability program installed on a Cray Y-MP vector supercomputer. Theory and models for power system stability are reviewed and an outline of the program is given. A discussion of vector supercomputer pipelining and the Cray Y-MP architecture are included. Programming constructs in FORTRAN which inhibit compiler optimization and vectorization are discussed, and program modification techniques to overcome these are presented. The modifications made to the power stability program are discussed and their effects on program execution time and output are presented. It is shown that significant speed up in program execution time can be achieved with no change in program output. (Author)(kr)

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Document Details

Document Type
Technical Report
Publication Date
Apr 18, 1990
Accession Number
ADA227884

Entities

People

  • Gregg F. Degen

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Central Processing Units
  • Circuits
  • Compilers
  • Computer Architecture
  • Computer Programming
  • Computer Programs
  • Computers
  • Computing System Architectures
  • Differential Equations
  • Engineering
  • Equations
  • Networks
  • Optimization
  • Phase Transformers
  • Power Distribution
  • Steady State
  • Transmission Lines

Fields of Study

  • Physics

Readers

  • Control Systems Engineering.
  • Parallel and Distributed Computing.