Author(s): Liu, HF (Liu, Haifeng); Guo, HJ (Guo, Hongjie); Tan, MQ (Tan, Manqing); Li, Q (Li, Qin); Meng, XQ (Meng, Xiangqiang); Yang, X (Yang, Xu)

Source: INSTRUMENTATION SCIENCE & TECHNOLOGY DOI: 10.1080/10739149.2022.2053152 Early Access Date: MAR 2022

Abstract: Accurate optical fiber current transducer based on the Faraday magneto-optical effect is described for high voltage direct current (HVDC) transmission. The transducer may be used to measure DC and high-order harmonic currents in a +/- 800 kV DC transmission field. The performance characteristics of sensitivity, non-linearity, temperature stability, and harmonic accuracy of the prototype were investigated. The results show that the scale factor error in the -40 degrees C to 70 degrees C range is below +/- 0.2%. The presented optical fiber current transducer has potential applications for HVDC detection fields, such as for a polarity bus and a converter valve bridge arm.

Accession Number: WOS:000777972900001

ISSN: 1073-9149

eISSN: 1525-6030

Full Text: https://www.tandfonline.com/doi/full/10.1080/10739149.2022.2053152