Influence of Grounding Mode and Working Voltage on the Internal Charging Characteristics of Polyetherimide Under Electron Irradiation

被引：0
|
作者：
Shang P. [1 ]
Zhang B. [1 ]
Wang P. [1 ]
Zheng X. [1 ]
He B. [1 ]
Wu J. [1 ,2 ]
机构：
[1] State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an
[2] School of Electronics and Information, Xi'an Polytechnic University, Xi'an
来源：
Hsi-An Chiao Tung Ta Hsueh/Journal of Xi'an Jiaotong University | 2021年 / 55卷 / 04期
关键词：
Deep dielectric charging; Energetic electron irradiation; Grounding mode; Internal electric field intensity;
D O I：
10.7652/xjtuxb202104017
中图分类号：
学科分类号：
摘要：
An evaluation method for the 3-D dielectric is proposed to explore the effects of grounding mode and interaction of high working voltage and deposited charge on the internal charging performance of the dielectric under electron irradiation. Firstly, Geant4 software is used to simulate the interaction process of high-energy electrons and the dielectric in the space environment to obtain the corresponding charge deposition rate and dose rate, and then the charge transport equation is solved by a finite element method to obtain the electric field distribution in the dielectric. Then, the distribution characteristics of electric field in polyetherimide under different grounding modes and working voltages are calculated. The results show that the grounding mode mainly affects the grounding area and the maximum transmission distance between the deposited charge and the grounding electrode, which implies that, increasing the grounding area or reducing the charge transmission distance can effectively reduce the internal electric field of the dielectric. The influence of the working voltage on the internal electric field in the dielectric depends on the voltage applying method and the voltage value. When the voltage increases from 100 V to 5 000 V, the electric field in the dielectric remains unchanged at 3.04×107 V/m in the cases of S-VS (i.e. suspending the irradiation side while applying voltage on the other side) and VS-S (i.e. applying voltage on the irradiation side while suspending the other side); the maximum internal electric field strength decreases from 2.1×107 V/m to 1.78×107 V/m in the case of G-VS (i.e. grounding the irradiation side while applying voltage on the other side), and increases from 2.11×107 V/m to 2.50×107 V/m in the case of VS-G (i.e. applying voltage on the irradiation side while grounding the other side). It is concluded that the grounding area of polyetherimide sample can be increased under high working voltage, and the G-VS voltage applying mode can be used to reduce the risk of internal discharge. © 2021, Editorial Office of Journal of Xi'an Jiaotong University. All right reserved.
引用
收藏
页码：154 / 161
页数：7
相关论文
共 19 条
  • [1] LI Shengtao, LI Guochang, Dielectric charging research status and prospect, Chinese Science Bulletin, 62, 10, pp. 990-1003, (2017)
  • [2] YUAN Qingyun, WANG Song, A new charging model for exposed dielectric of spacecraft, Acta Physica Sinica, 67, 19, pp. 208-217, (2018)
  • [3] WANG Song, YI Zhong, TANG Xiaojin, Et al., Analysis of exposed dielectric bulk charging in geosynchronous orbit environment via computer simulation, High Voltage Engineering, 41, 2, pp. 687-692, (2015)
  • [4] JUN I, GARRETT H B, KIM W, Et al., Review of an internal charging code, NUMIT, IEEE Transactions on Plasma Science, 36, 5, pp. 2467-2472, (2008)
  • [5] ZHANG Zhenlong, GONG Ding, HAN Jianwei, Et al., Correction of spacecraft internal charging threat assessment model, Atomic Energy Science and Technology, 51, 1, pp. 180-186, (2017)
  • [6] ROUSSEL J F, ROGIER F, DUFOUR G, Et al., SPIS open-source code: methods, capabilities, achievements, and prospects, IEEE Transactions on Plasma Science, 36, 5, pp. 2360-2368, (2008)
  • [7] LI Shengtao, LI Guochang, MIN Daomin, Et al., Influence of radiation electron energy on deep dielectric charging characteristics of low density polyethylene, Acta Physica Sinica, 62, 5, pp. 593-602, (2013)
  • [8] HUANG Jianguo, CHEN Dong, A study of deep dielectric charging on satellites by computer simulation, Chinese Journal of Geophysics, 47, 3, pp. 392-397, (2004)
  • [9] YU Xiangqian, SONG Siyu, CHEN Hongfei, Et al., Simulation research on satellite deep dielectric charging potential in Jupiter orbit, Acta Scientiarum Naturalium Universitatis Pekinensis, 55, 6, pp. 995-1001, (2019)
  • [10] LI Guochang, MIN Daomin, LI Shengtao, Et al., Research of deep dielectric charging characteristics of polytetrafluoroethene irradiated by energetic electrons, Acta Physica Sinica, 63, 20, pp. 454-461, (2014)
12