Research on the Monitoring System Design for the Line Loss of the Distribution Line Based on Dynamic Three-phase Unbalance Degree

Abstract

Line loss, as one of the most important economic indicator to evaluate the quality of the power distribution network, the importance of monitoring it is self-evident. A new method is presented to calculate the line loss, which can consider the three-phase unbalance degree. Based on this algorithm，a line loss monitoring system is designed which apply the master-slave machine technology. This paper focus on the synchronous circuit between the master machine and the slave machine. In order to get the three-phase unbalance degree, wireless communication is adopted to compare the standard signal and the actual signal. The software chart about the monitoring algorithm is introduced as well. A performance test is conducted after the system design accomplishing, the test results show that this system can realize the line loss monitoring function very well.