多回路关口电能表在线自动检定系统的关键技术研究

Research on the Key Technology of Online Automatic Verification System for Multi-loop Gateway Watt-hour Meter

针对传统检定系统对于多回路检定结果存在偏差,且检定误差较大的问题,设计了一种在线自动检定系统。该系统采用数字型乘法器的检定结构,加强对多回路样本数据的检定,保证了检定结果的严谨性;对直流解耦算法进行改进,通过加入电流算法公式的影响,使运算结果具有科学性,这为检定系统提供了理论依据。最后通过对多回路测试网点的采样数据进行分析,发现本设计最大采样误差为2.02%,最小误差为1.25%;通过仿真检定结果发现本研究检定完成度能够顾达到90%。

Aiming at the problem that the traditional verification system has deviations in multi-loop verification results and large verification errors,in this paper,an online automatic verification system is designed by using a digital multiplier verification structure to strengthen the verification of multi-loop sample data,and to ensure the rigor of the verification results.The DC decoupling algorithm is improved,and the current algorithm formula is added.It makes the calculation result scientific,and provides a theoretical basis for the verification system.Finally,by analyzing the sampling data of the multi-loop test network points,it is found that the maximum sampling error of this design is 2.02%,and the minimum error is 1.25%.Through simulation,it is found that the verification completion degree of this research can reach 90%.