畸变波形动态测试信号模型及电能表动态误差分析  

Dynamic test signal model of distortion waveform and dynamic error analysis of smart meter

作　　者：张永旺 朱孟 王学伟[2] 林国营 潘峰 Zhang Yongwang;Zhu Meng;Wang Xuewei;Lin Guoying;Pan Feng(7.Electric Power Research Institute of Guangdong Power Grid Co.,Ltd.f Guangzhou 510080,China;College of Information Science ＆ Technology 9 Beijing University of Chemical Technology 9 Beijing 100029,China)

机构地区：[1]广东电网有限责任公司电力科学研究院,广州510080 [2]北京化工大学信息学院,北京100029

出　　处：《电测与仪表》2018年第12期92-99,共8页Electrical Measurement & Instrumentation

基　　金：国家863计划课题(2015AA050404);广东电网公司项目动态负荷电能计量装置综合检测方法及平台研制(GDKJXM00000010)

摘　　要：首先分析了智能电能表动态误差的来源,给出了引起电能表动态误差的影响因素,其后,建立了畸变波形确定型动态测试信号模型,推到给出了该信号模型的电能理论值,以此理论值作为仿真分析的参考电能量值,然后,仿真分析了正弦包络和梯形包络下各影响因素导致的动态误差,最后,研究给出了各影响因素对电能表动态误差影响的程度,其中量程切换影响最大。Firstly,the source of the dynamic error of the smart meter is analyzed,and the new influencing factors of the accurate measurement of the smart meter are given. Then,the dynamic test signal model of the distortion waveform is established,and the theoretical value of electric energy of the model is given as the reference energy value of subsequent simulation. And then,the dynamic measurement error caused by the influence factors of the sinusoidal envelope and the trapezoidal envelope is simulated and analyzed. Finally,the results show that each factor has an influence on the dynamic error of the energy meter,in which the range switch has the greatest impact.

关 键 词：智能电能表 计量动态误差 信号模型 影响因素 

分 类 号：TM933[电气工程—电力电子与电力传动]