Chopping Measurement Method of DC Electric-Field Strength Under Extra-High Voltage DC Transmission Lines

doi:10.11985/2019.01.003

Abstract

Abstract:

In order to detect the DC electric field strength under extra-high voltage DC transmission lines, a new chopping measurement method of DC electric field strength is presented. The DC voltage signal caused by induction metal pad of electric field sensor is chopped. At first, the DC voltage signal is transformed to a low frequency AC square wave signal when the detecting sensor is no mechanical movement. Then the DC electric field strength is measured by using the operational amplifier circuit with extreme input impedance. The hardware and software of the measuring system are designed. The experiment testing results show that this method is feasible and effective.

Key words: Extra-high voltage, transmission lines, DC electric field, chopping

CLC Number:

TM835

ZHOU Zishu,LIU Yang. Chopping Measurement Method of DC Electric-Field Strength Under Extra-High Voltage DC Transmission Lines[J]. Journal of Electrical Engineering, 2019, 14(1): 15-20.

Figures/Tables 6

References 40

[1]	刘振亚 . 特高压电网[M]. 北京: 中国经济出版社, 2005.
[2]	刘振亚 . 特高压直流输电线路[M]. 北京: 中国电力出版社, 2009.
[3]	赵畹君 . 高压直流输电工程技术[M]. 北京: 中国电力出版社, 2005.
[4]	侯远航, 邬雄, 万保权 , 等. 500 kV直流线路极导线垂直排列的合成场强[J]. 高电压技术, 2005,31(5):37-38.
	Hou Yuanhang, Wu Xiong, Wan Baoquan ,et a1. Analysis of total electric field strength under the polar conductors in vertical arrangement on 500 kV DC line[J]. High Voltage Engineering, 2005,3l(5):37-38.
[5]	刘振亚 . 特高压直流输电工程电磁环境[M]. 北京: 中国电力出版社, 2009.
[6]	Maruvada P S, Trinh N G, Dallaire D . Corona performance of a conductor bundle for bipolar HVDC transmission at ±750kV[J]. IEEE Transactions on Power Apparatus and Systems, 1977,96(6):1872-1881.
[7]	Martin Misakian . Generation and measurement of DC electric fields with space charge[J]. Journal of Applied Physics, 1981,52(2):3135-3144.
[8]	Comber M G, Johnson G B . HVDC field and ion effects research at project UHV :results of electric field and ion current measurements[J]. IEEE Transactions on Power Apparatus and Systems, 1982,101(7):l998-2006.
[9]	Charry J M, Bailey W H, Shapiro M H ,et a1.Ion exposure chambers for small animals[J]. Bio Electromagnetics, 1986,7(1):1-11.
[10]	Johnston A R, Kirkham H A . Miniaturized space potential DC electric field meter[J]. IEEE Transactions on Power Delivery, 1989,4(2):1253-1261.
[11]	IEEE Std 1227—1990 IEEE guide for the measurement of DC electric field strength and related quantities[S]. 1990.
[12]	Nguyen Due Hat, Maruvada P Sarma, Clairmont B A . An exposure chamber for studies on human perception of DC electric fields and ions[J]. IEEE Transactions on Power Delivery, 1994,9(4):2037-2045.
[13]	田冀焕, 邹军, 刘杰 , 等. 高压直流双回输电线路合成电场与离子流的计算[J]. 电网技术, 2008,32(2):61-65.
	Tian Jihuan, Zou Jun, Liu Jie , et al. Calculation of total electric field and ionic current density of double circuit HVDC transmission lines[J]. Power System Technology, 2008,32(2):61-65.
[14]	杨勇, 陆家榆, 雷银照 . 同塔双回高压直流线路地面合成电场的计算方法[J]. 中国电机工程学报, 2008,28(6):32-36.
	Yang Yong, Lu Jiayu, Lei Yingzhao . Calculation of the total electric field at ground level for double circuit HVDC overhead transmission lines[J]. Proceedings of the CSEE, 2008,28(6):32-36.
[15]	杨勇, 陆家榆, 雷银照 . 极导线垂直排列直流线路地面合成电场的一种计算方法[J]. 中国电机工程学报, 2007,27(21):13-18.
	Yang Yong, Lu Jiayu, Lei Yingzhao . A calculation method for the total electric field strength at the ground level under vertical bipolar HVDC transmission lines[J]. Proceedings of the CSEE, 2007,27(21):13-18.
[16]	卢铁兵, 冯晗, 崔翔 . 基于上流有限元法对高压直流输电线路下合成电场的研究[J]. 电网技术, 2008,32(2):13-17.
	Lu Tiebing, Feng Han, Cui Xiang . Power system technology research on total electric field beneath HVDC power lines based on upstream finite element method[J]. Power System Technology, 2008,32(2):13-17.
[17]	吕应明, 袁海文, 陆家榆 . 直流输电线路下地面合成电场的无线同步测量系统研究[J]. 电网技术, 2012,36(1):89-194.
	Lu Yingming, Yuan Haiwen, Lu Jiayu . Research on wireless synchronous measurement system for total ground electric field under HVDC transmission lines[J]. Power System Technology, 2012,36(1):189-194.
[18]	赵墨, 马良, 吴伟 . 差分型脉冲电场测量系统的研制[J]. 核电子学与探测技术, 2012, 32(10):1148-1152.
	Zhao Mo, Ma Liang, Wu Wei . The develop of pulsed electric field sensor based on differential measurement[J]. Nuclear Electronics ＆ Detection Technology, 2012,32(10):1148-1152.
[19]	张波, 李伟 . 特、超高压交、直流并行输电线路周围混合电场的测量方法[J]. 高电压技术, 2012,38(9):2157-2162.
	Zhang Bo, Li Wei . Method for measuring the electric field under UHV/EHV DC/AC hybrid transmission line[J]. High Voltage Engineering, 2012,38(9):2157-2162.
[20]	Brian Reid, Richard Nuccitelli . Non-invasive measurement of bioelectric currents with a vibrating probe[J]. Nature Protocols, 2007,2(3):661-669.
[21]	张婷, 方志, 陈陶陶 . 球形电场测量系统在高压测量领域中的应用[J]. 电测与仪表, 2007,44(503):11-16.
	Zhang Ting, Fang Zhi, Chen Taotao . Applications of the spherical electric field measurement system in high- voltage measurement field[J]. Electrical Measurement ＆ Instrumentation, 2007,44(503):11-16.
[22]	张洪钏, 袁海文, 陆家榆 . 交直流混合电场旋转式一体化测试仪的研制[J]. 电网技术, 2012,36(12):182-188.
	Zhang Hongchuan, Yuan Haiwen, Lu Jiayu . Development of an integrative rotary test instrument for AC/DC hybrid electric field[J]. Power System Technology, 2012,36(12):182-188.
[23]	任东宇, 彭春荣, 夏善红 . 基于直接数字频率合成器及正交锁相技术的交直流微型电场传感器电路[J]. 电子与信息学报, 2013,35(12):3030-3036. doi: 10.3724/SP.J.1146.2013.00312
	Ren Dongyu, Peng Chunrong, Xia Shanhong . Micromachined electric-field sensor system based on direct digital synthesizer and lock-in-amplifier to measure AC and DC fields[J]. Journal of Electronics & Information Technology, 2013,35(12):3030-3036. doi: 10.3724/SP.J.1146.2013.00312
[24]	谢思莹, 梁轶瑞 . 基于振动电容传感器的3维数字电场测量仪[J]. 兰州大学学报(自然科学版), 2013,49(6):847-853.
	Xie Siying, Liang Yirui . Three-dimensional digital electric field measurement instrument based on vibrating capacitive sensor[J]. Journal of Lanzhou University (Natural Sciences), 2013,49(6):847-853.
[25]	Harland C J, Clark T D, Prance R J . Remote detection of human electroencephalograms using ultrahigh input impedance electric potential sensors[J]. Applied Physics Letters, 2002,81(17).
[26]	Brian R, Richard N, Min Zhao . Non-invasive measurement of bioelectric currents with a vibrating probe[J]. Nature Protocols, 2007,2(3):661-669.
[27]	郑宇成, 王鹏, 钱政 . 基于Kerr 电光效应的变压器油中直流电场测量系统[J], 华北电力技术, 2013,12, 32-35.
	Zheng Yucheng, Wang peng,Qian Zheng . DC electric field measurement system in transformer oil based on Kerr electro-optic effect[J]. North China Electric Power, 2013,12, 32-35.
[28]	周龙, 季鑫源, 行鸿彦 . 基于BSO 晶体电光效应的闪电电场传感器[J]. 仪表技术与传感器, 2013,( 10):1-4.
	Zhou Long, Ji Xinyuan, Xing Honhyan . Study of lightning electric field sensor based on electro-optic effect of BSO crystal[J]. Instrument Technique and Sensor, 2013,( 10):1-4.
[29]	李长胜, 崔翔 . 光学电场传感器研究综述[J]. 电气应用, 2008,27(16):8-13.
	Li Changsheng, Cui Xiang . Research summary of optical electric field sensor[J]. Electrical Application, 2008,27(16):8-13.
[30]	Cecelja F, Balachandran W, Bordowski M . Validation of electro-optic sensors for measurement of DC fields in the presence of space charge[J]. Measurement, 2007,40(4):450-458.
[31]	Cecelja F, Bordovsky M, Balachandran W . Electro-optic sensor formeasurement of DC fields in the presence of space charge[J]. IEEE Transactions on Instrumentation and Measurement, 2002,51(2):282-286.
[32]	Choi Y K, Sanagi M, Nakajima M . Measurement of low frequency electric field using Ti:LiNbO₃ optical modulator[J]. IEE Proceedings Optoelectronics, 1993,140(2):137-140
[33]	Kuwabara N, Tajima K, Kobayashi R , et al. Deveiopment and analysis of electric fieid sensor using LiNbO₃ Optical modulato[J]. IEEE Trans. on Electromagnetic Compatibiligy, 1992,34(4):391-395.
[34]	吴昊, 齐波, 李成榕 . 基于Kerr 效应法的油纸复合绝缘交直流复合电场测量[J]. 电工技术学报, 2013,28(4):28-34.
	Wu Hao, Qi Bo, Li Chengrong . The measurement of AC-DC composite field for oil-paper insulation system based on the Kerr electrooptic effect[J]. Transactions of China Electro Technical Society, 2013,28(4):28-34.
[35]	韩秀清 . 高压空间电场强度的光电测量系统[J]. 南昌大学学报, 1998,20(1):14-17.
	Han Xiuqing . A photoelectric measurement system of the space electric field[J]. Journal of Nanchang, 1998,20(1):14-17.
[36]	张建功, 马士新, 张广洲 , 等. 直流电场测量装置研制[J]. 高电压技术, 2009,35(12):3027-3030.
	Zhang Jiangong, Ma Shixin, Zhang Guangzhou . Development of measurement device for DC electric-field strength[J]. High Voltage Engineering, 2009,35(12):3027-3030.
[37]	Lundberg K H, Shafran J S, Kuang J. The develop of pulsed electric field sensor based on differential measurement [C]. Proceedings of the 2006 American Control Conference on Nuclear Electronics & Detlction Technology,Minneapolis,Minnesota,USA, 2006: 14-16.
[38]	任东宇, 彭春荣, 夏善红 . 基于直接数字频率合成器及正交锁相技术的交直流微型电场传感器电路[J]. 电子与信息学报, 2013,35(12):3030-3036. doi: 10.3724/SP.J.1146.2013.00312
	Ren Dongyu, Peng Chunrong, Xia Shanhong . Micro machined electric-field sensor system based on direct digital synthesizer and lock-in-amplifier to measure AC and DC fields[J]. Journal of Electronics & Information Technology, 2013,35(12):3030-3036. doi: 10.3724/SP.J.1146.2013.00312
[39]	李成榕, 唐志国 , 高压直流输电线路绝缘子直流电场测量方法:200610089769.0[P]. 2007-03-07.
[40]	刘洋, 崔翔 . 一种特高压直流输电线路空间直流电场测量装置:201310658120.6[P]. 2013-12-09.

参数	取值
输入偏置电流/fA	≤±1
输入失调电压/μV	<±500
差模输入阻抗/(Ω//pF)	1 013 //1
共模输入阻抗/(Ω//pF)	1 015 //2
开环电压增益/dB	>110 dB

信号幅值U/mV	测量强度E/(kV/m)
14.1	5.135
32.4	10.273
89.7	20.164
137.5	29.898
184.6	40.027
227.3	50.272