Incorporation of linearized sensitivities in the Ward method of equivalencing
Stevens, Robert A.
This item is only available for download by members of the University of Illinois community. Students, faculty, and staff at the U of I may log in with your NetID and password to view the item. If you are trying to access an Illinois-restricted dissertation or thesis, you can request a copy through your library's Inter-Library Loan office or purchase a copy directly from ProQuest.
Permalink
https://hdl.handle.net/2142/34798
Description
Title
Incorporation of linearized sensitivities in the Ward method of equivalencing
Author(s)
Stevens, Robert A.
Issue Date
1982
Director of Research (if dissertation) or Advisor (if thesis)
Schultz, R.D.
Smith, R.A.
Department of Study
Electrical Engineering
Discipline
Electrical Engineering
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
M.S.
Degree Level
Thesis
Keyword(s)
Ward equivalencing procedure
Language
en
Abstract
Linear reduction of large nonlinear power system networks reduces computation time significantly when studying large numbers of network outages for systems planning purposes. The Ward equivalencing procedure is one such reduction technique which has been used extensively in the industry for three decades. When incremental changes occur in a basecase network using the Ward equivalent, the real-power response from the equivalent is generally very good, but the reactive-power response does not model very well in general. A two-step linearization technique is proposed which updates the Ward equivalent as a function of the outage selected. The updated equivalent models the exact response better than the base case equivalent. Added computation associated with updating the equivalent is modest.
Use this login method if you
don't
have an
@illinois.edu
email address.
(Oops, I do have one)
IDEALS migrated to a new platform on June 23, 2022. If you created
your account prior to this date, you will have to reset your password
using the forgot-password link below.
