| 电力监测系统中数据采集卡的前端处理 |
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| 引用本文： | 刘春,李红斌,汪本进.电力监测系统中数据采集卡的前端处理[J].电测与仪表,2006,43(2):47-50. |
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| 作者姓名： | 刘春 李红斌 汪本进 |
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| 作者单位： | 华中科技大学,电气学院,武汉,430074 |
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| 摘 要： | 针对采用PCI2008A采集卡的空芯线圈电流互感器测量监视系统中PCI2008A的误差来源，提出了一种双通道放大的前端处理方法，给出了具体的硬件和软件解决方案，实验结果显示了系统精度有了明显的提高，达到IEC60044-8规定的0．2级。这种多通道放大的前端处理思想也可以用于电力系统其它场合，提高系统的整体精度。
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| 关 键 词： | 数据采集 前端处理 双通道放大 |
| 文章编号： | 1001-1390(2006)02-0047-04 |
| 收稿时间： | 2005-11-03 |
| 修稿时间： | 2005年11月3日 |
Front-end Processing of Data Acquiring Card for Power Measuring and Monitoring System |
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| LIU chun,LI Hong-bin,WANG Ben-jin.Front-end Processing of Data Acquiring Card for Power Measuring and Monitoring System[J].Electrical Measurement & Instrumentation,2006,43(2):47-50. |
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| Authors: | LIU chun LI Hong-bin WANG Ben-jin |
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| Affiliation: | College of Electrical Engineering Chongqing University,Wuhan 400030, China |
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| Abstract: | Data acquiring card PCI2008A is adopted in the measuring and monitoring system of Rogowski coil current transformer. The error sources of PCI2008A and specific solutions of both hardware and software are described. The results show that it meets accuracy 0.2 class required by standard IEC60044-8 on electronic instrument transformers. The front-end processing idea of muhi-ehannel amplification is also valuable to other applications of power system for improving the system accuracy. |
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| Keywords: | PCI2008A |
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