多重网格法在HVDC线路离子流场数值计算中的应用

Multigrid Method Applied to Calculation of Ion Flow Field under HVDC Transmission Line

简要介绍了一种求解偏微分方程边值问题的有效方法——多重网格法,它比有限差分法和有限元法具有更高的计算效率和收敛速度。通过对HVDC线路非线性离子流场的计算表明,由多重网格法计算得到的结果比采用有限元法更接近于实际测量值。

In this paper multigrid method which is very effective in solving the boundary-value problems is introduced. The computational efficiency and convergence speed of multigrid method are much better than those of finite difference method or finite element method. It is used to calculate the ion flow field under HVDC transmission line. It is shown that the results using multigrid methodare more consistent with measured results compared with the results using finite element method.