Abstract
The converter transformers are key equipment in DC power transmission systems. The power system security is greatly influenced by converter transformer insulation. As compared to conventional transformers, electric field distribution is more complex in converter transformers. Hence electric field and its distribution play a crucial role for optimal design and manufacturing process of converter transformer. In this paper a single phase converter transformer equivalent circuit model with dual winding has been established. The electric field simulation is carried out with the help of 2D finite element method (FEM). The insulation strength can be tested by conducting a DC test on valve side winding. Also, ANSYS Maxwell simulation platform is used for calculating converter transformer winding parameters. The present approach permits a faster and more precious method for modeling of converter transformer winding.
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