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Novel synchronous sampling scheme based on oversampling for a process bus system
Author(s) -
Kojima Kazuhiro,
Tomida Tsuneo,
Itagaki Daiju,
Okai Makoto,
Katayanagi Yasutaka,
Iwamaru Akifumi,
Hasegawa Shun,
Furusawa Yujiro
Publication year - 2019
Publication title -
ieej transactions on electrical and electronic engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.254
H-Index - 30
eISSN - 1931-4981
pISSN - 1931-4973
DOI - 10.1002/tee.22858
Subject(s) - oversampling , fieldbus , iec 61850 , reliability (semiconductor) , synchronization (alternating current) , process (computing) , relay , frame (networking) , computer science , embedded system , electric power system , interoperability , engineering , electronic engineering , power (physics) , electrical engineering , control system , computer network , topology (electrical circuits) , operating system , mechanical engineering , automation , physics , cmos , quantum mechanics
In recent years, the possibility of applying process bus technology in accordance with IEC 61850 and IEC 61869 standards for protection relay systems has been investigated as a method of reducing the bulk of metallic cables in the substation environment and to support the digital transformation of power grid field data. Conventional process bus system sampling synchronization is enabled using dedicated devices for synchronization control, and hence the system is highly dependent upon the dedicated devices, which causes challenges in the durability, reliability, and cost aspects. Therefore, in this paper, we propose a new configuration method for the process bus using a synchronous sampling scheme based upon oversampling and high‐speed publishing rate of the sampled value frame. Subsequently, we discuss the validity and efficacy of the proposed method. Moreover, we present the interoperability test results using prototype stand‐alone merging units and intelligent electric devices from three vendors. © 2019 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.