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Multi-Phase State Estimation Featuring Industrial-Grade Distribution Network Models | IEEE Journals & Magazine | IEEE Xplore

Multi-Phase State Estimation Featuring Industrial-Grade Distribution Network Models


Abstract:

This paper proposes a novel implementation of a multiphase distribution network state estimator which employs industrial-grade modeling of power components and measuremen...Show More

Abstract:

This paper proposes a novel implementation of a multiphase distribution network state estimator which employs industrial-grade modeling of power components and measurements. Unlike the classical voltage-based and current-based state estimators, this paper presents the implementation details of a constrained weighted least squares state calculation method that includes standard three-phase state estimation capabilities in addition to practical modeling requirements from the industry; these requirements comprise multiphase line configurations, unsymmetrical and incomplete transformer connections, power measurements on Δ-connected loads, cumulative-type power measurements, line-to-line voltage magnitude measurements, and reversible line drop compensators. The enhanced modeling equips the estimator with capabilities that make it superior to a recently presented state-of-the-art distribution network load estimator that is currently used in real-life distribution management systems; comparative performance results demonstrate the advantage of the proposed estimator under practical measurement schemes.
Published in: IEEE Transactions on Smart Grid ( Volume: 8, Issue: 2, March 2017)
Page(s): 609 - 618
Date of Publication: 19 July 2016

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