In order to ensure the safety and reliability of power system, more and more monitoring and maintenance equipment on transmission lines are being used. However, these equipment would not work without the supply of power. At present, the current transformer has been widely used in the on line power acquisition device. As an important part of the current transformer, the performance magnetic core has great influence on the power acquisition. In this paper, the core parameters of the current transformer in the on-line power acquisition device are designed, and the parameters such as core material and air gap length are optimized and verified by simulation as well.
LuX.X.YangJ.FanS.S. et al., An on-line energy acquisition method for transmission lines based on impedance matching, International Conference on Advanced Composite Materials and Manufacturing Engineering-3 Energy Materials394(4) (2018), 1–6.
2.
KoranA.AlbatranS. and LaiJ.S., Analytical factorized model for stability analysis and optimization of shunt damped filter for grid-connected voltage source inverters, IEEE Transactions on Power Electronics35(7) (2020), 6830–6841.
3.
ZhaoQ.S.TeY.Q.XuG.F. et al., Power supply of electronic current transformer for power bus with low current, Automation of Electnc Power Systems39(19) (2015), 121–125.
4.
DiazE.R.FreijedoF.D.VasquezJ. et al., Analysis and comparison of notch filter and capacitor voltage feedforward active damping techniques for LCL grid-connected converters, IEEE Trans. Power Electron34(4) (2019), 3958–3972.
5.
WangL.M.LiH.D.ChenC.L. et al., A novel online energy extracting device with low lower limit deadband on transmission line, High Voltage Engineering40(2) (2014), 344–352.
6.
LiuZ.FanS.S. and HuJ.R., Research on On-line energy acquisition method for transmission lines based on impedance matching, Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering39(23) (2019), 6867–6876.
7.
FatehB.GovindarasuM. and AjjarapuV., Wireless network design for transmission line monitoring in smart grid, IEEE Transactions on Smart Grid4(2) (2013), 1076–1086.
8.
YueT.C.LiuY.D.HeZ.M. et al., Power output characteristics of magnetic core in CT energy harvesting devices, High Voltage Apparatus51(1) (2015), 18–23.
9.
LuoC. and HofmannH.F., Wideband energy acquision for piezoelectric devices with linear resonant behavior, IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control58(7) (2011), 1294–1301.
10.
MoserM.J.BretterklieberT.ZangH. et al., Strong and weak electric field interfering: capacitive icing detection and capacitive energy acquision on a 220-kV high-voltage overhead power line, IEEE Transactions on Industrial Electronics58(7) (2011), 2597–2604.
11.
ZhuangX.YangM.T.ChokS.M.L. et al., Tunable magnetoelectric bending resonance for sensing static magnetic field, IEEE Sensors Journal16(3) (2016), 662–669.
12.
DanielS.JoachimL.FriedrichH. et al., A parallel-SSHI rectifier for piezoelectric energy harvesting of periodic and shock excitations, IEEE Journal of Solid-State Circuits51(12) (2016), 2867–2879.
13.
YoichiroT. and TomokazM., Resonant converter for u, KidoTatsuya, Frequency Tracking Burst-Mode PDM-controlled Class-D Zero Voltage Soft-Switching Resonant Converter for Inductive Power Transfer Applications, in: International Power Electronics Conference (IPEC-Niigata – ECCE Asia 2018), 2018, pp. 329–336.
14.
TakehiroI. and YoichiH., Unified theory of electromagnetic induction and magnetic resonant coupling, Electrical Engineering in Japan199(2) (2017), 58–80.
