Fault Location Algorithm for Distribution Networks Based on Differential CurrentMatrix

To address the challenges in distribution network protection caused by high-penetration distributed generation (DG) integration, this study proposes a multisource information fusion-based fault location algorithm for distribution networks.A dynamic current matrix for fault zones and a topology-adaptive node differential matrix are constructed, and the fault location matrix is derived through matrix multiplication.Grounded in the current differential principle for distribution network fault localization, logical analysis is performed on the fault discrimination matrix.PSCAD simulation demonstrated that the criterion is capable of accurately locating fault nodes.The algorithm exhibits advantages such as simplicity in principle, low memory consumption, high computational efficiency, and superior accuracy, demonstrating strong practicality.It provides a robust solution for active distribution networks with highpenetration renewable energy.