高压直流输电线路电磁场的计算，指导高压直流输电线路的铺设。计算安全上线-HVDC transmission line calculation of electromagnetic fields to guide the laying of high voltage direct current transmission lines. Computationally secure on-line

MATPOWER is a package of free, open-source Matlab-language M-files for solving steady-state power system simulation and optimization problems, such as: power flow (PF), continuation power flow (CPF), extensible optimal power flow (OPF), unit co