By Topic

Graneq - A Radial, Internal Network Equivalent for Power System Security Calculations

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
H. Hager ; BBC Brown, Boveri & Co., Ltd. ; H. Glavitsch

For the purposes of on-line security calculations a method for deriving steady-state network equivalents is presented which is based on a radial tree-shaped structure. This is not able to give a perfect replica of the original network, but the accuracy of the representation of different network regions is controllable. The impedances and the structure of the radial equivalent are found by a search procedure directed at minimizing an error function on the transfer impedances to be matched by the equivalent. Injections are treated in terms of the REI-network. Results for practical power systems are given, which show the feasibility of this reduction method with security calculations.

Published in:

IEEE Transactions on Power Apparatus and Systems  (Volume:PAS-102 ,  Issue: 2 )