IEC61850-9-1/2的量化误差对数字电能计量的影响  

The quantization error of IEC 61850-9-1/2 in digital energy metering

作　　者：王彬吉 唐毅[2,3,4] 曾庆川[1] 江波[3] 

机构地区：[1]电子科技大学能源科学与工程学院,成都611731 [2]国网四川省电力公司电力科学研究院,成都610072 [3]国网四川省电力公司计量中心,成都610045 [4]华中科技大学电气与电子工程系,武汉430074

出　　处：《电测与仪表》2016年第4期69-73,96,共6页Electrical Measurement & Instrumentation

摘　　要：文章研究了数字电能计量系统中IEC 61850-9-1/2采样值传输协议的量化误差对计量的影响,推导出量化造成的电能误差的相对不确定度的数学解析式。仿真了不同电压电流变比下量化误差带来的计量误差,并计算出相对不确定度,与理论推导的结果相一致。分析表明在一次侧小电流情况下,9-2量化造成的误差相对较大。文章较透彻的研究了采样值传输协议的量化误差,对数字电能表的检定提出了相关建议,对工程应用以及理论研究具有一定参考价值。The quantization error of IEC61850-9-1/2 protocol in digital energy metering system was analyzed in this paper, and the mathematics expression of relative uncertainty of power caused by quantization was deduced. The pow- er error under different voltage and current ratio was simulated, and the relative uncertainty was calculated, which are consistent with the theoretical results. The research has proved that compared to 9-1, power error caused by the quanti- zation of 9-2 is more bigger . Based on the studies of quantization error of IEC61850-9-1/2 protocol, the related sug- gestions for the calibration of digital electric energy meter is put forward, which has some reference value to engineer- ing application and theoretical research.

关 键 词：IEC 61850-9-1/2 量化误差 数字电能表 相对不确定度 电能误差 

分 类 号：TM933[电气工程—电力电子与电力传动]