Branch-Current Algorithm Based Three-Phase State Estimation in Distribution System

Abstract:

This paper presents a branch-current distribution system state estimation algorithm considering zero-injection constraints. The algorithm takes the branch-current amplitude and phase angle as state variables, considering current-amplitude measurement easily without measurements conversion and makes full use of voltage amplitude measurements, power measurements and current measurements. In order to improve the robust performance of algorithm, exponential function is adopted as the objective function in this paper. The paper takes simulation test to verify the algorithm correctly and effectively on improved IEEE 34 nodes system.

• Periodical: Advanced Materials Research (Volumes 860-863)
• Pages: 1963-1966
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.860-863.1963
• Online since: December 2013
• Authors: Hai Feng Liang*, Xiao Lei Yu, Ding Hui Shen, Jing Zhang, Cheng Shan Wang
• Keywords: Branch-Current Based Algorithm, Distribution System, State Estimation, Zero-Injection Constraints

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