Cart (Loading....) | Create Account
Close category search window

Improved DC power flow method based on empirical knowledge of the system

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
$31 $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

5 Author(s)
Shuai Lu ; Pacific Northwest Nat. Lab., Richland, WA, USA ; Ning Zhou ; Kumar, N.P. ; Samaan, N.
more authors

This paper presents a new method to improve the accuracy of the DC power flow results while maintaining its computation efficiency and linear formulation. The proposed method uses empirical knowledge of the system, including observed voltage magnitudes and angles from historical data, to formulate correction terms. The correction terms are applied to bus power injections and line admittance matrix when DC power flow is calculated. Tests on the IEEE 30 bus and 118 bus systems, using either randomly varied bus loading or an IEEE standard load profile, showed that the average error in power flow calculation is reduced from about 5% to less than 1%, an average improvement of 80% in comparison with the traditional DC method. The improved DC method can be very useful when a large number of system power flow calculations under different generation/ loading conditions are needed. It can also be used in representing the system constraints in power market programs where empirical knowledge of the system is usually available and accuracy is of great importance.

Published in:

Transmission and Distribution Conference and Exposition, 2010 IEEE PES

Date of Conference:

19-22 April 2010

Need Help?

IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.