By Topic

Using voltage measurements to improve the results of branch-current-based state estimators for distribution systems

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 $31
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

1 Author(s)
Teng, J.H. ; Dept. of Electr. Eng., I-Shou Univ., Kaohsiung, Taiwan

Branch-current-based formulation provides an approach to the solution of the state estimator of distribution systems. However, voltage measurements were always neglected in the branch-current-based state estimator due to its special formulations. In distribution systems, a large proportions of measurements are voltage measurements, if voltage measurements cannot be integrated into branch-current-based state estimators, the value and accuracy of branch-current-based state estimators will be greatly degraded. Therefore, an algorithm of treating voltage measurements for the branch-current-based state estimator with a phase-decoupled formulation is proposed. The approach presented in the paper substantially improves the original method. A new algorithm with constant gain matrix and phase-decoupled formulation for the treatment of voltage measurements is developed. The innovative formulation can be used to improve the results of the branch-current-based state estimators. Tests show that the proposed method can handle voltage measurements effectively and the usage of load-forecasting data and some voltage measurements can further improve the accuracy of state estimator results.

Published in:

Generation, Transmission and Distribution, IEE Proceedings-  (Volume:149 ,  Issue: 6 )