摘要
介绍了ADE7755计量的基本误差及在远程抄表系统中的应用,详细分析了集中式多用户电子电能表远程抄表电量和计度器示值之间的误差,并进行了模拟实际应用工况的掉电试验,试验结果表明频繁断电是造成远程抄表电量和计度器示值之间误差产生的主要原因。分别从硬件接口电路和微控制器程序设计上提出了新的改进方法,从而实现了远程抄表电量和计度器示值的一致,并给出了应用实例分析,实例表明该方法可广泛应用于集中式多用户电子电能表中。
The basic error of ADE7755 and its application in the remote meter reading system were introduced.The error b etween the remote meter reading data and the register displaying was analyzed in centralized multi-users electronic energy meters in detail.The power down test simulated work-site condition showed that frequent power down was the main factor causing the error.New improved methods of the hardware interface circuit and micro-controller programming were presented to achieve an agreement between the remote meter reading data and the register displaying.The application example analysis showed that the method can be widelyapplied in centralized multi-users electronic energymeters.
出处
《电测与仪表》
北大核心
2010年第4期74-77,共4页
Electrical Measurement & Instrumentation
关键词
误差
远程抄表
集中式
电能表
计度器
error
remote meter reading
centralized
electronic energy meters
register
