A technique for calculation of nodal gas prices and analysis of their components

Gamm, A.Z.; Golub, Irina; Dzyubina, Tatiana V.; Ilkevich, Nikolay

doi:10.1109/eem.2008.4579002

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Secondary Distribution Network State Estimation1

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Cited by 2 publications

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“…System (6) has a single solution if the number of its equations is equal to the number of variables -basic measurement system, and the rank of matrix H called the matrix of observability [10,11], equals to the number of state variables. To smooth the error impact in individual measurements on the estimation of state variables, measurement equations are multiplied by weight coefficients…”

Section: Secondary Distribution Network State Estimationmentioning

confidence: 99%

Methods of linear and nonlinear state estimation of distribution network

Golub

Boloev

2018

E3S Web Conf.

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The paper proposes a new approach to the problem of state estimation of a low voltage distribution network by the measurements coming from smart meters. The problem of nonlinear state estimation based on the measurements of nodal powers and voltages is solved by the method of simple iteration which minimizes the quadratic function of the residues with and without the consideration of the constraint on the zero currents in the transit nodes. The same algorithms are proposed to use for linear state estimation based on the measurements of nodal currents and voltages. The effectiveness of the proposed methods for linear and nonlinear state estimation is illustrated on the 33 nodes three-phase four-wire low-voltage network.

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Section: Secondary Distribution Network State Estimationmentioning

confidence: 99%