Study on Electricity-Theft Criterion Based on the Unchanged Line Resistance of the Distribution Network

Abstract:

The power, voltage and current will change along with the change of grid’s operation mode; however, the line resistance is unchanged. This paper analyzed the limitation and inadaptability of the existed methods used for anti-electricity-theft. And most of the criterions are based on the variable electrical quantities. In order to establish a criterion that can find out the position of electricity-theft accurately, it chose line resistance as a reference value, and calculated the equivalent resistances of each node and branch combining with the actual measurement system. To verify the validity of this criterion, a medium and low voltage distribution network was structured in the Matlab/Simulink simulation platform. The results, which are basically consistent with the actual situations, show that the criterion based on line resistance can well investigate electricity-theft, and also verify that the introduction of this method will bring great benefits to engineering applications.

• Periodical: Advanced Materials Research (Volumes 614-615)
• Pages: 1385-1389
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.614-615.1385
• Online since: December 2012
• Authors: Jia Yang, Hai Bao, Ling Wang
• Keywords: Electricity-Theft, Electricity-Theft Criterion, Line Resistance, MATLAB/Simulink Simulation

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