IMPROVED PHASE-COORDINATE GAUSS-SEIDEL LOAD FLOW ALGORITHM

This paper provides an efficient algorithm for extending the earlier w ork on the application of the reduction and restoration technique of s ingle-phase systems to three-phase network formulation based on the ph ase-coordinate Gauss-Seidel load flow algorithm. This technique requir es the nodal admittance matrix to be reduced to an equivalent and more compact submatrix. The paper gives performance comparisons between th e conventional phase-coordinate Gauss-Seidel algorithm and the improve d method mentioned above which indicate significant improvements. The new improved algorithm is found to be fast, efficient, reliable, and a ble to provide solutions for ill-conditioned systems.