温度影响下的智能电能表误差模型

开展对智能电能表在低温环境下运行的计量性能测试研究,在黑龙江省漠河县地区搭建低温实际运行状态下的智能电能表试验场,试验功能包括:近、远程检测系统;负荷控制系统;保护系统以及环境监测系统。近、远程检测系统可以实现本地和远方在线检测。基于智能电能表低温环境试验基地的实际检测数据,结合Matlab和Origin等处理软件基础性地研究低温环境和运行负荷与智能电能表计量性能的关系以及影响程度,结果表明:低温环境会使电能表误差向负方向漂移,从而得出不同负荷下电能表误差随温度变化的数学模型。

The mathematical model of the error of the smart electricity meter with temperature

The test field of smart meter in the actual operating condition of low temperature is set up in mohe county of Heilongjiang province.The test functions of the meter include short and long-distance detection system, load control system, protection system and environmental monitoring system.Short-and long-distance detection system can realize local and remote on-line detection.Based on the actual test data of the smart meter in the low temperature environment and processing software such as Matlab and Origin, we can investigate the relationship and influence level among the low temperature environment, operating load and metering performance of the smart meter.The results show that the low temperature environment induces a shift to negative direction of the error of the smart meter, so that we can obtain the mathematical model of the smart meter with the change of temperature at different loads.