OPTIMAL DESIGN OF TANK SHIELD OF AN ELECTRICAL LOCOMOTIVE MAIN TRANSFORMER BASED ON 3-D EDDY CURRENT ANALYSIS

摘要

This research focuses on the optimal design of the transformer oil tank shield of an electrical locomotive which has the operating speed of 160km/h. The analysis of 3-D eddy current loss in the magnetic leakage field of the tank shield is performed in the research. The optimization of the three-dimensional geometry of the tank shield is also carried out. Based on the analysis of 3-D eddy current loss in the magnetic leakage field of the tank of the main transformer for 200km/h electrical locomotive, an optimal model of the tank shield of the transformer is developed and optimized by using the algorithm of sub-problem approach. The research results show that it is efficient to combine the optimized algorithm with the FEM analysis in optimizing the design of electromagnetic equipment.