Method for positioning misalignment electric energy meter by using impedance data of low-voltage power supply line

The invention provides a method for positioning a misaligned electric energy meter by using impedance data of a low-voltage power supply line, which comprises the following steps of: acquiring current and voltage conditions at the tail end of the electric energy meter through an electricity utilization information acquisition system, judging whether the electric energy meter is misaligned by calculating a linear regression coefficient of live wire current and zero wire current of the electric energy meter, and further judging a voltage error. And further, the zero line current loss accuracy of the electric energy meter is judged by calculating a system impedance measurement error calculated by using the live wire current and zero line current measurement values of the electric energy meter, and the live wire current loss accuracy of the electric energy meter, and the zero line current and the live wire current of the electric energy meter are both misaligned. 本发明提出一种利用低压供电线路阻抗数据定位失准电能表的方法，通过用电信息采集系统采集电能表末端的电流