误差剔除法在低压电力载波抄表中的成功率分析

Analysis on Meter Reading Success Ratio of Low-voltage Power Carrier with Gross Error Elimination Method

介绍根据粗大误差剔除法原理设计了一种低压电力线阻抗测量方法,对云南省一个典型的城乡结合部红土寨台区的低压集抄台区进行的测量,对80 k Hz^500 k Hz区间数据进行时域和频域的分析,得出整个低压电力线网络呈弱感性,电网分支的增加和用电器的接入式影响阻抗变化的主要因素,是造成抄表成功率低的重要因素。

According to the principle of gross error elimination method, a kind of low-voltage power line impedance measurement method was designed.In red walled area, a typical urban fringe of Yunnan, low-pressure collecting station is been measuring.A-nalysis of time domain and frequency domain on 80 kHz-500 kHz interval data, we have arrived at the conclusion that the low volt-age power line network is weak sensibility.To increase power grid branches and electrical appliances access is the main factor affect-ing the impedance change, and is also an important factor causing the low success rate of reading meter.