HVDC 直线型直流接地极端部三维电流场有限元计算

3D Current Field Computation in the End Region of Linear HVDC Ground Electrode with FEM Method

采用有限元法对ＨＶＤＣ直线型直流接地极端部三维电流场进行了计算，提出了极体端部形状的优化方法，并指出解决端部溢流密度过分集中等问题拟采取的措施。

The current fields in the end region of linear HVDC ground electrode are calculated with FEM method. An optimized method for the shape of the end region is proposed. Some appropriate means to overcome the end effects are proposed.