3种双向电流检测方法的实验比较  

Experimental Comparison on Three Methods of Bi-directional Current Detection

作　　者：刘春玉[1] 黄亮[1] 张立炎[1] 周波[1] 张昌辉[2] 

机构地区：[1]武汉理工大学自动化学院,湖北武汉430070 [2]湖北省电力公司嘉鱼县供电公司,湖北咸宁437000

出　　处：《武汉理工大学学报（信息与管理工程版）》2012年第4期451-454,共4页Journal of Wuhan University of Technology：Information & Management Engineering

基　　金：中央高校基本科研业务费专项资金资助项目(2010-Ⅳ-018)

摘　　要：以TMS320F2812为控制芯片介绍了双向电流检测的3种方法:电压提升法、绝对值电路法和新型双极性AD芯片法。它们不仅能够检测电流的大小,而且能判断电流的方向。通过实验证明了这3种方法都能精确地检测双向电流,并给出了各方法的优缺点。Three methods of bi- directional current detection based on control chip TMS320F2812 were discussed：the voltage boost method,the absolute value circuit method and the new bipolar AD chip AD7321 method. They can detect not only the current value, but also the direction of the current. It was experimentally proved that these three methods can accurately detect bi - directional current. Both their advantages and disadvantages were demonstrated.

关 键 词：双向电流 TMS320F2812控制芯片 AD7321 

分 类 号：TP29[自动化与计算机技术—检测技术与自动化装置]