An Efficient Engine for Orthogonal SE

DOI

10.2991/case-13.2013.4How to use a DOI?

Keywords

Power Systems, Orthogonal SE, Efficient Engine, Givens Transformation, Sparse Matrix, Block Matrix

Abstract

Orthogonal transformation has been used for State Estimation, since it is hard to solve by normal WLS method when weights of some measurements differ much from others. Though the numerical stability of orthogonal transformation has been generally accepted, it is reported that the efficiency might be another problem for Orthogonal SE. An efficient engine for orthogonal SE has been proposed in this paper, which is based upon fast Givens rotation and sparse matrix techniques. Further considerations including column & rows ordering, block matrix, and fixed factor table are also explain-ed in order to further improve the performance of this engine especially on large-scale systems. Performance testing has been made on a desktop computer using multiple power systems of different sizes, and the feasibility and efficiency of this engine has been verified.

Copyright

© 2013, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Gongtao Wang
AU  - Karimi Ali
AU  - Jianming Xu
PY  - 2013/08
DA  - 2013/08
TI  - An Efficient Engine for Orthogonal SE
BT  - Proceedings of the Third International Conference on Control, Automation and Systems Engineering (CASE-13)
PB  - Atlantis Press
SP  - 13
EP  - 17
SN  - 1951-6851
UR  - https://doi.org/10.2991/case-13.2013.4
DO  - 10.2991/case-13.2013.4
ID  - Wang2013/08
ER  -