Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Analytical methods for DSA contingency selection and ranking: User`s manual for DIRECT version 4.0. Final report

Technical Report ·
OSTI ID:230572
; ;  [1];  [2]
  1. Siemens Energy and Automation, Inc., Brooklyn Park, MN (United States). Empros Power Systems Control Div.
  2. Iowa State Univ. of Science and Technology, Ames, IA (United States). Dept. of Electrical Engineering

This manual is the user`s guide for the DIRECT version 4.0 program developed as part of EPRI project RP3103-03. The objective of the project was to develop analytical methods for screening and ranking contingencies for on-line Dynamic Security Assessment (DSA) using the Transient Energy Function (TEF) method. The program developed in this project made significant improvements to TEF algorithm such as the introduction of sparse matrix techniques, faster solutions for the unstable equilibrium point and variable step integration. This manual contains six chapters grouped into two main parts. Chapters 1-3 provide the functional description of the program, software structure, modelling features and options. Chapters 4-6 deal with data input, output and user interface to the program.

Research Organization:
Electric Power Research Inst., Palo Alto, CA (United States); Siemens Energy and Automation, Inc., Brooklyn Park, MN (United States). Empros Power Systems Control Div.; Iowa State Univ. of Science and Technology, Ames, IA (United States). Dept. of Electrical Engineering
Sponsoring Organization:
Electric Power Research Inst., Palo Alto, CA (United States)
OSTI ID:
230572
Report Number(s):
EPRI-TR--105886
Country of Publication:
United States
Language:
English

Similar Records

Prototype on-line dynamic security assessment (DSA) program: User`s guide. Final report
Technical Report · Mon May 01 00:00:00 EDT 1995 · OSTI ID:87036

PREscore software. User's manual and tutorial. Version 1. 0
Technical Report · Sun Sep 01 00:00:00 EDT 1991 · OSTI ID:5345609

Prescore software: Users manual and tutorial version 2. 0
Technical Report · Sat May 01 00:00:00 EDT 1993 · OSTI ID:6145015