谐波电能计量误差分析仪的研究与实现  

The Design and Realization of the Analytical Meter for Harmonics Energy Measuring Error

作　　者：胡雪云[1] 汪毅[2] 陈婉[3] 

机构地区：[1]南昌工程学院电气与电子工程系,南昌330029 [2]中南电力设计院,武汉430071 [3]中南财经政法大学,武汉430000

出　　处：《中国农村水利水电》2006年第9期118-120,共3页China Rural Water and Hydropower

摘　　要：较全面介绍了自行开发设计的谐波电能计量误差分析仪，该仪器由分析软件和数据采集系统两部分组成。在谐波影响下电能表计量误差理论的基础上，并结合大量试验，引入BP神经网络建立数学模型，用VC＋＋．net开发了分析软件。对采集来的数据进行加窗插值FFT，为分析软件提供实时谐波数据。该装置可给出各次谐波对电能表的计量误差和总的计量误差，为电力部门分析因谐波所造成的电能计量损失，治理谐波污染提供决策依据。This article introduces harmonics energy error-metering device, which is designed and developed by the authors. The device consists of analytical software and data acquisition system. Based on the theory of harmonics energy metering error and results of experiments, a mathematical model is proposed with BP neural network, and analytic software is developed using VC＋ ＋. net. The data acquisition system can supply real time harmonics data for the analytic software through processing with algorithm of windowed and interpolated EFT. The analytic software can calculate the watt-hour meter metering error and total error for any ordered harmonics, help the power department analyze the loss of electric metering, and give decision support for harmonic pollution control.

关 键 词：BP神经网络 谐波 电能计量误差 加窗插值FFT 数据采集 

分 类 号：TM933.4[电气工程—电力电子与电力传动]