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- Title
Harmonic state estimation based on graph signal processing.
- Authors
Wang, Ying; Xu, Rui; Ma, Xiaoyang; Qiu, Wei; Fu, Qiang; Zhou, Runze
- Abstract
This paper presents a novel harmonic state estimation (HSE) methodology based on graph signal processing. The proposed approach can perform HSE without calculating harmonic impedance. The proposed methodology involves graph signal theory for constructing a graph Laplacian matrix and an unconstrained optimization function, the adaptive K‐means algorithm for building a prior information model of the target bus, as well as data fuzzification and the domain averaging method for state estimation. Simulations are carried out using a 30‐bus power distribution system, and results are presented and discussed to prove the efficiency of the proposed method. The practical application further verifies the availability of the proposed method.
- Subjects
HARMONIC analysis (Mathematics); SIGNAL processing; OBSERVABILITY (Control theory); LAPLACIAN matrices; IMPEDANCE control
- Publication
IET Generation, Transmission & Distribution (Wiley-Blackwell), 2022, Vol 16, Issue 6, p1083
- ISSN
1751-8687
- Publication type
Article
- DOI
10.1049/gtd2.12352