A Linear Integer Programming Method for Section Location in Distribution Networks Under Multiple Faults

Existing linearized section location methods for distribution networks are only applicable to single faults. In response, this paper proposes a linear integer programming method for section location in distribution networks that is suitable for multiple faults. Firstly, based on fault-tolerant mechanism analysis, a switch function tailored for multiple faults is developed. Secondly, the method incorporates phasor measurement unit (PMU) information fault information into the section location process, constructing a logical model for section location in distribution networks. Finally, by applying three transformation principles between logical and algebraic relationships, the logical model is converted into a linear integer programming model, which is solved using MATLAB+CPLEX. Case studies demonstrate that the proposed linear integer programming method for section location in distribution networks achieves fast location speed and robust fault tolerance, making it suitable for both single and multiple faults.