Abstract：In order to solve the problem of bearing current in motor, a new method to suppress and eliminate bearing current by means of field emission characteristics of carbon nano-materials is proposed. Firstly, the advantages of carbon nano-materials are introduced, and the field emission characteristics of carbon nano-materials are analyzed. Secondly, the influence of the distance between the emitter tip and the anode metal plate on the field strength is analyzed. Finally, the field emission experiments of TNF300 type carbon nanotube fibers under non vacuum conditions are carried out by means of micro distance experimental equipment such as probes, microscopes and microscopes. The voltage and current curves of carbon nano-materials at different distances are obtained. After processing the data, the field emission characteristics are plotted and the results under different distances are compared and analyzed.
胡家鸣, 白保东, 陈德志, 关荣钰, 丹枫林子. 针对轴电流抑制问题的碳纳米管材料场发射研究[J]. 电工技术学报, 2018, 33(zk1): 82-88.
Hu Jiaming, Bai Baodong, Chen Dezhi, Guan Rongyu, Dan Fenglinzi. Field Emission of Carbon Nanotube Materials for Suppression of Bearing Current. Transactions of China Electrotechnical Society, 2018, 33(zk1): 82-88.
[1] 范彪. 广州地铁二号线A5型车牵引电机轴承电腐蚀问题调查分析及解决措施[J]. 机电工程技术, 2017, 46(2): 134-138. Fan Biao.Investigation and analysis of the electric corrosion of the traction motor bearing of the A5 type car in Guangzhou metro line 2[J]. Mechanical & Electrical Engineering Technology, 2017, 46(2):134-138. [2] 朱显辉, 武俊峰, 师楠, 等. EDM电流对电动汽车电机轴承寿命的影响[J]. 电机与控制学报, 2016, 20(10): 9-14. Zhu Xianhui, Wu Junfeng, Shi Nan, et al.EDM current influence on bearing lifetime of electric vehicles motor[J]. Electric Machines and Control, 2016, 20(10): 9-14. [3] 郭磊磊, 金楠, 申永鹏. 一种基于优化电压矢量选择的电压源逆变器模型预测共模电压抑制方法[J]. 电工技术学报, 2018, 33(6): 1347-1355. Guo Leilei, Jin Nan, Shen Yongpeng.A mode predictive common-mode voltage suppression method for voltage source inverter based on optimum voltage vector selection[J]. Transactions of China Electrotechnical Society, 2018, 33(6): 1347-1355. [4] 王萍, 霍大勇. SZZ730/160转载机电动机故障分析与维护[J]. 煤炭技术, 2017, 36(3): 286-288. Wang Ping, Huo Dayong.Fault analysis and maintenance of motor in SZZ730/160 stage loader[J]. Coal Technology, 2017, 36(3): 286-288. [5] Dhatrak R K, Nema R K, Dash S K, et al.Mitigation of bearing current and shaft voltage using five level inverter in three phase induction motor drive with SPWM technique[C]//IEEE International Conference on Industrial Instrumentation and Control, 2015: 1184-1189. [6] Viskadouros G, Konios D, Kymakis E, et al.Electron field emission from graphene oxide wrinkles[J]. RSC Advances, 2016, 6(4): 2768-2773. [7] 张明艳, 王晨, 吴淑龙, 等. 碳纳米管、蒙脱土共掺杂环氧树脂复合材料介电性能研究[J]. 电工技术学报, 2016, 31(10): 151-158. Zhang Mingyan, Wang Chen, Wu Shulong, et al.Research on dielectric properties of epoxy resin composites doped with carbon nanotubes and montmorillonite[J]. Transactions of China Electrotechnical Society, 2016, 31(10): 151-158. [8] Iijima S.Helical microtubes of graphite carbon[J]. Nature, 1991, 354(6348): 56-58. [9] 庞思远, 刘希喆. 石墨烯在电气领域的研究与应用综述[J]. 电工技术学报, 2018, 33(8): 1705-1722. Pang Siyuan, Liu Xizhe.Review on research and application of graphene in electrical field[J]. Transactions of China Electrotechnical Society, 2018, 33(8): 1705-1722. [10] 成永红, 孟国栋, 董承业. 微纳尺度电气击穿特性和放电规律研究综述[J]. 电工技术学报, 2017, 32(2):13-23. Cheng Yonghong, Meng Guodong, Dong Chengye.Review on the breakdown characteristics and discharge behaviors at the micro & nano scale[J]. Transactions of China Electrotechnical Society, 2017, 32(2): 13-23. [11] 马玉龙, 向伟, 金大志, 等. 碳纳米管薄膜场蒸发效应[J]. 物理学报, 2016, 65(9): 325-333. Ma Yulong, Xiang Wei, Jin Dazhi, et al.Field evaporation behavior for carbon nanotube thin-film[J]. Acta Physica Sinica, 2016, 65(9): 325-333. [12] Fowler R H, Nordheim L.Electron emission in intense electric fields[J]. Proceedings of the Royal Society of London, 1928, 119(781): 173-181. [13] 刘利宁. 碳纳米管场发射器件中发射源阵列与衬底之间接触电阻的模型研究[D]. 广州: 华南理工大学, 2013. [14] 叶芸, 康冬茹, 汪江胜, 等. 电化学生长纳米枝状ZnO及其场发射性能研究[J]. 纳米技术与精密工程, 2017, 15(1): 1-6. Ye Yun, Kang Dongru, Wang Jiangsheng, et al.Field emission characteristics of dendritic ZnO nanostructures prepared by electrochemical deposition[J]. Nanotechnology and Precision Engineering, 2017, 15(1): 1-6. [15] 李哲, 马江将, 李克训, 等. 碳纳米管场发射烧毁机理研究[J]. 真空科学与技术学报, 2016, 36(6): 643-648. Li Zhe, Ma Jiangjiang, Li Kexun, et al.Mechanisms for burning damage of carbon nanotube array thin film in field emission[J]. Chinese Journal of Vacuum Science and Technology, 2016, 36(6): 643-648. [16] 于颖, 王丽军, 刘凌宏, 等. 碳纳米管复合材料场发射性能研究现状[J]. 材料导报, 2016, 30(5): 125-131. Yu Ying, Wang Lijun, Liu Linghong, et al.Current research status of field emission performance of carbon nanotubes and their composites[J]. Materials Review, 2016, 30(5): 125-131. [17] 崔云康, 吴庆春, 王红兵, 等. 碳纳米管蒸发特性及其对场发射性能的影响[J]. 电子器件, 2017, 40(6): 1329-1334. Cui Yunkang, Wu Qingchun, Wang Hongbing, et al.Evaporation characteristics analysis of the CNTs emitters and its influence on the field emission performance[J]. Chinese Journal of Electron Devices, 2017, 40(6): 1329-1334. [18] 孙斌, 陈冉, 王艳, 等. 一种植入玻璃表面的碳纳米管电极及其场发射性能研究[J]. 功能材料, 2017, 48(3): 3068-3071. Sun Bin, Chen Ran, Wang Yan, et al.Study on field emission characteristics of a carbon nanotube electrode embedded in glass[J]. Journal of Functional Materials, 2017, 48(3): 3068-3071. [19] 霍海波, 杨卫飞, 麻华丽, 等. 3D型冷阴极结构形态对场发射影响研究[J]. 人工晶体学报, 2017, 46(6): 1138-1142. Huo Haibo, Yang Weifei, Ma Huali, et al.Effect of 3D cold cathode structure on field emission[J]. Journal of Synthetic Crystals, 2017, 46(6): 1138-1142. [20] Boboń A, Zientek P, Niestrój R, et al.The computational and measurement methods of research on factors affecting the flow of bearing currents in high power induction motors[C]//IEEE Selected Issues of Electrical Engineering and Electronics, Rzeszow, Poland, 2016: 1-6. [21] 白保东, 王禹, 陈志雪, 等. 基于电磁屏蔽法变频电机轴承电流抑制研究[J]. 电工技术学报, 2016, 31(7): 33-39. Bai Baodong, Wang Yu, Chen Zhixue, et al.Inhibition of bearing currents in frequency variable motor based on electromagnetic shielding[J]. Transactions of China Electrotechnical Society, 2016, 31(7): 33-39.
2018, Vol. 33 
