Premium
A modified Ward equivalent based on sensitivity matrices for static security analysis
Author(s) -
Huang Bin,
Li Pai,
Zheng J. H.,
Wu Q. H.
Publication year - 2018
Publication title -
ieej transactions on electrical and electronic engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.254
H-Index - 30
eISSN - 1931-4981
pISSN - 1931-4973
DOI - 10.1002/tee.22730
Subject(s) - sensitivity (control systems) , security analysis , computer science , static analysis , network analysis , network security , track (disk drive) , reliability engineering , engineering , electrical engineering , computer security , electronic engineering , operating system , programming language
This letter proposes a modified Ward equivalent method (M‐Ward) for the static security analysis of electric network. The M‐Ward develops the external to boundary sensitivity matrices to track the change of the operation condition in the external network. Hence, the M‐Ward can guarantee the accuracy of the equivalent network along with the condition change of the external network. Simulation studies of static security analysis conducted on the IEEE 39‐bus system demonstrate that the results of M‐Ward are more accurate than those of the classic Ward and the extended Ward method. © 2018 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.