Notice of Violation of IEEE Publication PrinciplesModified load flow analysis for integrated AC/DC power systems

Notice of Violation of IEEE Publication Principles

"Modified Load Flow Analysis for Integrated AC/DC Power Systems"
by Youssef A. Mobarak
in the 2008 12th International Middle-East Power System Conference (MEPCON 2008), 2008, pp. 402-405

After careful and considered review of the content and authorship of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE\´s Publication Principles.

This paper contains significant portions of original text from the paper cited below. The original text was copied with insufficient attribution (including appropriate references to the original author(s) and/or paper title) and without permission.

Due to the nature of this violation, reasonable effort should be made to remove all past references to this paper, and future references should be made to the following article:

"Modified Newton-Raphson Load Flow Analysis For Integrated AC/DC Power Systems"
by A. Panosyan, B.R. Oswald
in the 2004 39th International Universities Power Engineering Conference (UPEC 2004), 2004, pp. 1223 - 1227

Two-terminal high voltage direct current HVDC transmission links are in operation throughout the world. They are key elements in electrical power networks, their representation is oversimplified or ignored in most power system studies. It is therefore necessary to adequately model the HVDC transmission links and integrate them in the load flow analysis of the complete AC/DC system. In this paper, the well known Newton-Raphson method for the load flow analysis is modified to achieve compatibility for AC/DC systems with integrated DC links in the AC network. The modified Jacobian equation includes the DC real and reactive power at the AC/DC buses, and their dependency on the AC system variables. The modified Newton-Raphson method is evaluated on an AC/DC test system with a load flow computation in Power World Simulator PWS and the results are pr- sented.