谐波条件下感应系电能表计量误差分析  

Analysis of the induction Watt-hour meter accuracy in the presence of harmonics

作　　者：丁艺[1] 赵伟[1] 侯国屏[1] 

机构地区：[1]清华大学电机系,北京100084

出　　处：《电测与仪表》2002年第10期8-12,共5页Electrical Measurement & Instrumentation

摘　　要：着重归纳和分析了谐波条件下感应系电能表误差产生的原因,明确了误差与频率特性曲线之间的关系,并指出,其误差的正、负主要取决于各次谐波功率相对于基波功率的流向、负载的性质、电能表本身因制造、材料形成的物理性能的差异等。This paper presents the primary causes of the induction Watt-hour meter reg-istration error,which is affected by power harmonics,and explains the relationship be-tween the error and the drooping frequency response curve.It claims that the sign of registration error depends largely on the direction of the power harmonic flows relative to that of the power fundamental flow,characteristic of the load and different perfor-mances of Watt-hour meters that are made of various materials.

关 键 词：计量误差分析 感应系电能表 畸变因数 谐波 

分 类 号：TM933.4[电气工程—电力电子与电力传动]