Abstract
Current transformer (CT) is widely used as the current measurement tool in power system. However, core saturation is the main reason restricting its application. Magnetic-valve-type current transformer (MVCT) constructs a magnetic valve on the core, and can compensate for the distorted secondary current due to core saturation by measuring the magnetic field intensity of the air gap where the magnetic sensor. MVCT has a certain engineering application prospect because of its simple structure and low cost. In order to further study the transfer characteristics of MVCT, the equivalent cross-sectional area of air gap, which is used to modify equivalent magnetization curve model, is considered. According to the modified equivalent magnetization curve model, the transfer characteristics of MVCT are analyzed. Finite element simulation and experimental results have proved the correctness and effectiveness of the model and analytical expression.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Similar content being viewed by others
References
Sanati, S., Alinejad-Beromi, Y.: Avoid current transformer saturation using adjustable switched resistor de-magnetization method. IEEE Trans. Power Delivery 36(1), 92–101 (2021)
Zhang, N., et al.: Panoramic Information Perception and Intelligent Grid. Proceedings of the CSEE 41(4), 1274–1283 (2021)
Hajipour, E., Vakilian, M., Sanaye-Pasand, M.: Current-Transformer Saturation Prevention Using a Controlled Voltage-Source Compensator. IEEE Trans. Power Delivery 32(2), 1039–1048 (2017)
Davarpanah, M., Sanaye-Pasand, M., Iravani, R.: A Saturation Suppression Approach for the Current Transformer—Part I: Fundamental Concepts and Design. IEEE Trans. Power Delivery 28(3), 1928–1935 (2013)
Chen, Y., Wang, J., Li, J., Piao, H., Lin, J.: Sensitivity Model for Residence Times Difference Fluxgate Magnetometers Near Zero Magnetic Field. IEEE Sens. J. 20(2), 868–875 (2020)
Lenner, M., Frank, A., Yang, L., Roininen, T., Bohnert, K.: Long-Term Reliability of Fiber-Optic Current Sensors. IEEE Sens. J. 20(2), 823–832 (2020)
Weiss, R., Itzke, A., Reitenspieβ, J., Hoffmann, I., Weigel, R.: A Novel Closed Loop Current Sensor Based on a Circular Array of Magnetic Field Sensors. IEEE Sens. J. 19(7), 2517–2524 (2019)
Ye, C., Wang, Y., Tao, Y.: High-Density Large-Scale TMR Sensor Array for Magnetic Field Imaging. IEEE Trans. Instrum. Meas. 68(7), 2594–2601 (2019)
Wu, Y., Tian, C., Wu, F., Chen, Y., Chen, B.: Magnetic-valve-type Electromagnetic Current Transformer. High Voltage Engineering 46(9), 3154–3163 (2020). (in Chinese)
Balakrishnan, A., Joines, W., Wilson, T.: Air-gap reluctance and inductance calculations for magnetic circuits using a Schwarz-Christoffel transformation. IEEE Trans. Power Electron. 12(4), 654–663 (1997)
Acknowledgments
This work is supported by Research Project of State Grid Shanghai Municipal Electric Power Company(5209352000DV).
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2023 The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.
About this paper
Cite this paper
Liu, S. et al. (2023). Analysis of Transfer Characteristics of Magnetic-Valve-Type Current Transformer. In: Ma, C., Zhang, Y., Li, S., Zhao, L., Liu, M., Zhang, P. (eds) The Proceedings of 2022 International Conference on Wireless Power Transfer (ICWPT2022). ICWPT 2022. Lecture Notes in Electrical Engineering, vol 1018. Springer, Singapore. https://doi.org/10.1007/978-981-99-0631-4_103
Download citation
DOI: https://doi.org/10.1007/978-981-99-0631-4_103
Published:
Publisher Name: Springer, Singapore
Print ISBN: 978-981-99-0630-7
Online ISBN: 978-981-99-0631-4
eBook Packages: EngineeringEngineering (R0)