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Research on dichotomous optical current sensing technology
Author(s) -
Shen Yan,
Ge Jinming
Publication year - 2018
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.31363
Subject(s) - electronic engineering , interference (communication) , electromagnetic interference , computer science , current (fluid) , transformer , current transformer , engineering , electrical engineering , voltage , channel (broadcasting)
Existing optical current transformers (OCTs) have a low measurement accuracy, weak anti‐interference capability, and poor stability during long‐term operation. To address these problems, this paper proposes a dichotomous OCT unit. First, the structure of the unit is proposed, based on a mathematical model, and current measurement methods are presented. Then, a parameter optimization scheme for the shunt frame in the dichotomous OCT units is obtained by analyzing the proposed mathematical model, and a high‐accuracy measurement method is presented for reducing the influence of external magnetic field interferences. The simulation and experimental results show that the dichotomous OCT unit has a high measurement accuracy and strong resistance against external magnetic field interference.