摘要
以实现超低负荷和正常负荷两种情况下的精确计量为目标,提出实时分段计量的电度表设计方案。采用双边比电流传感器进行电流信号的检测采样,根据负荷的功率额度实时进行检测信号的选通切换;基于ADE7758计量芯片的处理,进行不同量程的计算;通过仿真试验说明计量数据是真实的和有效的。该方案有望实现全量程的精度均衡和精确计量,具有很好的市场前景和应用价值。
In order to achieve accurate measurement under normal load and lower load, this paper produces a project of three-phase watt-hour meter, with real-time subsection according to load power. Current sensors with double ratios are used to carry out signal detecting and sampling. Based upon ADE7758, parameters of different ranges are calculated. Data measuring are proved to be actual and effective by experiment results. This project can he expected to realize whole-process precision balance and accurate measurement, with widespread application value.
出处
《微计算机信息》
2009年第13期229-231,共3页
Control & Automation
基金
基金申请人:屈百达
项目名称:智能化电能计量装置研发
基金颁发部门:国家863计划(2006AA10Z335)
