| Title |
Linearity analysis According to the Number of Excitation Winding Turns of MVDC Class Fluxgate Type Current Sensor |
| Authors |
조주희(Juhee Cho) ; 김수용(Suyong Kim) ; 이승재(Seungjae Lee) ; 김병택(Byungtaek Kim) |
| DOI |
https://doi.org/10.5370/KIEEP.2023.72.4.262 |
| Keywords |
MVDC(Medium voltage DC); Fluxgate; Soft-magnetic material; Current Sensor; linearity |
| Abstract |
Research on Medium voltage DC converter station is actively developed to construct a DC power grid. In addition, for stable operation of the converter station, sensor technology is essential to precisely measure and analyze the voltage and current of the electrical devices in the converter station. This paper is about a fluxgate-type current sensor to measure DC current in an MVDC power grid. Three-dimensional finite element analysis was applied to analyze the linearity of a fluxgate type current sensor according to the number of excitation winding turns. The number of excitation winding turns must be sufficient so that the ring core can operate with high permeability even with small changes in primary current. |