作　　者： ; ; ;

机构地区： 华南理工大学电力学院

出　　处： 《电力系统保护与控制》 2011年第20期106-110,130,共6页

摘　　要： 通过深入分析感应式电能表在谐波情况下的计量特性,并进行大量不同谐波畸变情况下的计量实验,推算出一组谐波情况下电能表的计量特性系数。利用加权平均法、功能驱动法和差异驱动法等综合评价方法对每个特性系数进行综合评价,提出了由评价后的特性系数组合成的谐波情况下计量误差校正模型。运用此模型重新校正计量电能并与原始实验结果对比,结果表明按此模型校正后的计量电能与实际电能基本相符,较好地解决了感应式电能表在谐波情况下的计量误差。 This paper calculates a group of coefficients through in-depth analysis of measuring characteristics of induction watt-hour meter in harmonic circumstances and a large number of experiments of power measurement under different harmonic distortion conditions. Using the weightext average method, function-driven method and the difference-driven method, which are comprehensive evaluations, each coefficient is evaluated comprehensively and the model for correcting errors of power measurement that consists of evaluated coefficients is proposed. Using this model to recalibratc the power measurement of induction watt-hour meter, compared with the original experimental results, the conclusions show that the power energy corrected by the model is generally coincident with the actual power energy measured by induction watt-hour metcr. This model provides a better way to correct the errors of power measurement of induction watt-hour meter in the case of harmonic conditions.

关 键 词： 电力系统 电能质量 感应式电能表 电力谐波 电能计量

领　　域： [电气工程]