An Algorithm for Short-Circuit Current Interval in Distribution Networks with Inverter Type Distributed Generation Based on Affine Arithmetic

• DOI: 10.32604/ee.2024.048718
• Publication Date: 2024-04-02T08:40:59Z
• Authors: Yan Zhang; Bowen Du; Benren Pan; Guannan Wang; Guoqiang Xie; Tong Jiang
• Keywords: Affine arithmetic

During faults in a distribution network, the output power of distributed generation (DG) may be uncertain.Moreover, currents sources are also affected by power, resulting uncertainties calculation short-circuit current at time fault.Additionally, impacts such around will increase with sources.Thus, it is very important to develop method for calculating while considering network.In this study, an affine arithmetic algorithm intervals networks fluctuations presented.The proposed includes two stages.In first stage, normal operations considered establish conservative interval optimization model injection sources.Constrained fluctuation range moment fault occurrence, can then used solve injected amplitudes sources.The second stage implemented after malfunction occurs.In established.This developed characterizes transmission line, and constrained amplitude DG during operations.Finally, network lines occurs predicted.The article obtains containing accurate results through operation.Compared traditional point value methods, methods provide more reliable analysis results.The obtained slightly larger than those using Monte Carlo Latin hypercube sampling algorithm.Therefore, has good suitability does not require iterative calculations, significant improvement computational speed compared algorithm.Furthermore, results, improving safety stability systems.