Single iteration conditional based DSSE considering spatial and temporal correlation

Shafiei, M., Nourbakhsh, G., Arefi, A., Ledwich, G. and Pezeshki, H. (2019) Single iteration conditional based DSSE considering spatial and temporal correlation. International Journal of Electrical Power and Energy Systems, 107 . pp. 644-655.

Abstract

Active players are introducing significant challenges in electric distribution systems management. One of the key components of the distribution system management is state estimator. This paper proposes an efficient and accurate single iteration distribution system state estimation technique only requiring a limited number of real measurement units. A method based on conditional multivariate complex Gaussian distribution (CMCGD) is proposed to include spatial and temporal correlation into estimator and to improve the accuracy of pseudo measurements for unmeasured buses. The quality, accuracy, standard deviation and computational time are improved due to combined spatial and temporal correlation and using an efficient direct solution that only has a single iteration for the solution. Three case studies are used in this paper to examine and demonstrate the effectiveness of the proposed technique.

Publication Type:	Journal Article
Murdoch Affiliation:	School of Engineering and Information Technology
Publisher:	Elsevier Ltd
URI:	http://researchrepository.murdoch.edu.au/id/eprint/42952

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