A new approach for AC state estimation based on a linear network model

Amir Safdarian, Mahmud Fotuhi-Firuzabad, Farrokh Aminifar, Matti Lehtonen, Aydogan Ozdemir

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

2 Citations (Scopus)

Abstract

This paper presents a new and efficient formulation for the state estimation (SE) which can be solved in one single shot of computation. The proposed approach adopts line flows and the square of voltage magnitudes as the problem state variable and considers both active and reactive power quantities. The objective function is to minimize the weighted sum of the least square values of measurement residuals. The nonlinearity associated with line losses is left by assuming these values as slack variables. Numerical studies are conducted through two standard networks. In order to compare the performance of the proposed method, the conventional weighted least square (WLS) state estimation with Gauss-Newton AC power flow is also accommodated. Simulation results demonstrate that the proposed method outperforms the conventional one particularly from the speed while keeping the accuracy in a reasonable range.

Original languageEnglish
Title of host publicationELECO 2013 - 8th International Conference on Electrical and Electronics Engineering
Pages117-121
Number of pages5
DOIs
Publication statusPublished - 2013
MoE publication typeA4 Article in a conference publication
EventInternational Conference on Electrical and Electronics Engineering - Bursa, Turkey
Duration: 28 Nov 201330 Nov 2013
Conference number: 8

Conference

ConferenceInternational Conference on Electrical and Electronics Engineering
Abbreviated titleELECO
CountryTurkey
CityBursa
Period28/11/201330/11/2013

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