NEWTON ITERATIVE ALGORITHM BASED ON GAUSS METHOD FOR LOCATING PARTIAL DISCHARGE IN TRANSFORMERS

摘要

Locating Partial Discharge (PD) sources accurately in power transformers is of great importance for maintenance scheduling, maintenance efficiency and even operational risk analysis. Techniques for locating the source of PD are constantly a hot research topic. Location algorithm is one of the research contents. At present major problems existing in locating algorithms are being sensitive to time-delay error, local convergence or divergence and a large amount of computational time. To solve these problems, Newton iterative algorithm based on the Gauss method is suggested in this paper. At the end, PD location experiments and calculations were carried out on a real power transformer to verify the algorithm.