matpower 4.0b3是重要的常用的电力系统潮流计算软件包，可悲添加到matlab toolbox里。-matpower 4.0b3 is an important common power flow calculation package, sadly added to the matlab toolbox inside.

利用MATLAB的MATPOWER模块，进行三机9节点网络潮流计算算例。-Use of MATLAB MATPOWER module for three machines 9 node network flow calculation examples.