Method for LV Distribution Network Topology Verification Based on AMI Metering Data

doi:10.11930/j.issn.1004-9649.201805105

Abstract

Abstract: Aiming at the problem of topology error identification in low voltage distribution network, a method is proposed for low voltage (LV) distribution network topology verification based on AMI metering data. Based on the loads measurement information and network data provided by the advanced measurement system, the method firstly calculates the voltage at the coupling node and the associated branch current of each load under the same distribution, and then separately calculates the correlation coefficients of the coupling node voltages and the branch currents among all the loads for correlation analysis. In this way, the highly correlated loads falls into the same feeder, consequently determining the feeders to which each load belongs. According to the magnitude of the voltage of the coupling nodes of the loads, the upstream and downstream relationships of each load in the same feeder are determined. Finally, the load of the error connection is corrected based on the correlation analysis results and the voltage distribution of the coupling nodes of the load. The topology verification and correction of the LV distribution network are thus completed. The case study has verified the feasibility and effectiveness of the proposed method.

Key words: advanced meter infrastructure, low voltage distribution network, correlation analysis, topology verification, topology correction

CLC Number:

TM711
TM727

YAN Weiguo, WANG Gaomeng, LIN Jikeng, GUO Lingxu, JIANG Ling, CHEN Jian. Method for LV Distribution Network Topology Verification Based on AMI Metering Data[J]. Electric Power, 2019, 52(2): 125-133.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.201805105

https://www.electricpower.com.cn/EN/Y2019/V52/I2/125

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