基于误差在线自诊断技术的智能电表设计

Design of Intelligent Electric Meter Based on On-Line Error Self-Diagnosis Technology

随着坚强智能电网的建设,电能表的现场检验技术滞后于电网发展,造成大量的资源浪费。对误差在线自诊断技术进行了研究。基于ADE9153计量芯片的mSure技术,设计一款具有在线误差自诊断功能的智能电能表。对电能表的软件和硬件作了设计改进。通过分析电能表采样电路的性能改变,监测电能表因窃电、计量故障、器件老化或失效引起的误差改变。通过远程数据采集实现对电能表生命周期内的误差在线监测,便于故障及时发现、精准定位。基于大数据分析,为供电部门合理规划、有序轮换电能表提供参考依据,延长了电能表的使用寿命、减少了资源浪费。通过试验室测试及现场运行测试,验证了误差在线自诊断技术的准确性、稳定性、可靠性。

With the construction of strong smart grid,the field inspection technology of watt-hour meter lags behind the development of power grid,resulting in a lot of waste of resources.Based on the mSure technology of ADE9153 metering chip,an intelligent watt-hour meter with on-line error self-diagnosis function is designed.The design of the watt-hour meter is improved in software and hardware.By analyzing the performance change of the sampling circuit of the watt-hour meter,the error changes caused by electricity theft,metering fault,device aging or failure of the watt-hour meter are monitored.Through remote data acquisition,the error on-line monitoring in the life cycle of watt-hour meter is realized,which is convenient for timely fault detection and refinement.Based on big data analysis,it provides a reference for the reasonable planning of power supply department and the orderly rotation of watt-hour meter,prolongs the service life of watt-hour meters and reduces the waste of resources.Through laboratory tests and field operation tests,the accuracy,stability and reliability of error on-line self-diagnosis technology are verified.