| 针对地线扰动的一种地线电流自动补偿方法 |
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| 引用本文： | 吴仕情,王斌,金海彬,李小舟.针对地线扰动的一种地线电流自动补偿方法[J].宇航计测技术,2020,39(5):51. |
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| 作者姓名： | 吴仕情 王斌 金海彬 李小舟 |
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| 作者单位： | 1、北京东方计量测试研究所，北京 100086 |
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| 摘 要： | 本文分析了地线干扰的主要原因与途径，指出了抑制地线干扰的几种措施，同时为了解决地线电流通过地线阻抗形成差模电压对高精度测量性能造成影响的问题，提出了一种基于地线电流自动补偿技术的解决方案，利用本技术方案，可以自动地将流经地线的直流电流和杂波噪声电流补偿为零，即使地线存在直流电阻和交流阻抗，在地线的两端也不产生压降，提高了系统信号准确度。
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| 关 键 词： | 地线扰动 地线电流 干扰抑制 自动补偿 |
Ground Wire Current Automatic Compensation Method for Ground Wire Disturbance |
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| WU Shi-qing,WANG Bin,JIN Hai-bin,LI Xiao-zhou.Ground Wire Current Automatic Compensation Method for Ground Wire Disturbance[J].Journal of Astronautic Metrology and Measurement,2020,39(5):51. |
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| Authors: | WU Shi-qing WANG Bin JIN Hai-bin LI Xiao-zhou |
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| Institution: | 1、Beijing Oriental Measurement & Test Institute,Beijing 100086，China |
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| Abstract: | This study analyzes the main causes and ways of ground wire interference and points out several measures to suppress ground wire interference.At the same time,in order to solve the problem that diffence mode voltage formed by the ground wire current through the ground wire impedance has an influence on the high-precision measurement performance,a solution based on the ground wire current automatic compensation technology is proposed.With this technical solution,the direct current and the clutter noise current flowing through the ground wire can be automatically compensated to zero,even if the ground wire has DC resistance and AC impedance.And thereby the accuracy of system signal can be improved. |
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| Keywords: | Ground wire disturbance Ground wire current Interference suppression Automatic compensation |
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