一种纵向不对称故障运行参数计算方法及相关装置
By calculating the operating parameters of longitudinal asymmetric faults using the current injection method, PLU decomposition method, and equivalent impedance method, the low efficiency caused by the large amount of computation in the existing technology is solved, and efficient parallel computing and accurate calculation of operating parameters are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ELECTRIC POWER RES INST CHINA SOUTHERN POWER GRID CO LTD
- Filing Date
- 2023-08-03
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies, when dealing with longitudinal asymmetric faults, involve large computational loads in matrix-based calculations, resulting in low efficiency in calculating operating parameters and making parallel computation impossible.
The node voltage equations are constructed using the current injection method. The node impedance matrix is decomposed by combining the PLU decomposition method and the equivalent impedance method. The sequence node impedance vector of each node is calculated, and the fault equivalent impedance vector is determined by the equivalent impedance method. The operating parameters of each node are then calculated.
By splitting the matrix for computation, parallel computation of each node is achieved, which improves computational efficiency and ensures the accuracy and reliability of the computation results.
Smart Images
Figure CN117110779B_ABST