Distribution network topology error identification algorithm based on AMI measurement information

Abstract

The invention relates to a distribution network topology error identification algorithm based on AMI measurement information, which is characterized by comprising the following steps: S1, calculatingthe voltage Upc of a coupling node to which each load belongs, and obtaining a coupling node voltage sample space to which the loads belong; S2, calculating the current I<L> of a branch to which eachload belongs, and obtaining a branch current sample space to which the loads belong; S3, calculating the voltage correlation coefficient and the current correlation coefficient of the loads accordingto the voltage and current sample spaces obtained in S1 and S2; and S4, completing topology calibration and correction. The running time required for identification is reduced. The quick action of topology identification is ensured, and the reliability and effectiveness of topology identification are ensured.

Description

technical field

[0001] The invention belongs to the technical field of power system parameter identification, and relates to a distribution network topology error identification method, in particular to a distribution network topology error identification algorithm based on AMI measurement information. Background technique

[0002] The power system topology analysis data is mainly composed of switching quantities. However, in the process of switching quantity collection, due to system equipment, network and other reasons, bad data will inevitably be generated, resulting in errors in network topology information. However, correct network topology is the basis for power flow calculation, state estimation, fault location, isolation and power restoration, network reconfiguration, reliability analysis and other analysis. With the continuous development of smart grid construction, distribution automation systems at different levels have been put into use one after another, and the...

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