Open AccessSecond‐order matrix pencil‐based phasor measurement algorithm for P‐class PMUs
Author(s) -
Li Jiaxian,
Liu Hao,
Bi Tianshu,
Zhao Junbo
Publication year - 2020
Publication title -
iet generation, transmission and distribution
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.92
H-Index - 110
eISSN - 1751-8695
pISSN - 1751-8687
DOI - 10.1049/iet-gtd.2020.0153
Subject(s) - phasor , matrix pencil , units of measurement , algorithm , computer science , electric power system , phasor measurement unit , taylor series , control theory (sociology) , electronic engineering , power (physics) , engineering , mathematics , artificial intelligence , eigenvalues and eigenvectors , physics , quantum mechanics , mathematical analysis , control (management)
Phasor measurement units (PMUs) have made real‐time monitoring and control of power systems possible, thanks to their time synchronisation and fast reporting rate. It is critical that the PMUs can track the dynamics of complex power systems accurately. In this study, a measurement bandwidth extraction method based on signal reconstruction is proposed to filter the out‐of‐band signals without extra response time. The synthetic phasor is modelled by the second‐order Taylor's series expansion. A matrix pencil‐based fast phasor measurement algorithm is proposed for P‐class PMUs. Simulation and experiment results show that the accuracy and the response time of the proposed algorithm meet the requirements of the IEEE standard. Field data test shows that out‐of‐band signals have been reduced and the dynamic change of power system can be accurately reflected by phasor estimations. All results demonstrate that the proposed algorithm is suitable for P‐class PMUs in complex power systems.