试谈大区系统500kV电网远景结构

500kV电压是国内多数大区系统的最高电压等级，500kV电网的安全和短路电流是大区系统规划中的2个重要课题．文中从500kV电网结构出发．提出一些对大区系统安全可靠供电有帮助的看法和2种500kV电网结构模式，以供规划参考，以利近期电网与远期目标电网相结合，形成一个能进一步提高500kV电网供电可靠性和有利于限制短路电流的目标网架。

Discussion about future structure of 500 kV power network in bulk power system

0 kV is the highest voltage in the most bulk power system in China. The problems of power network safety and short-circuit current are the two important topics in bulk power system planning. This paper tries to put forward some viewpoints which are helpful for safe and reliable power supply in bulk power system from the view of the structure of 500 kV power network, and to present the two kinds of structural pattern of 500 kV power network as reference to power system planning. With a view to recent power network and in the future, the structure of power network can be formed, which is helpful for further improving the power supply reliability and restricting short-circuit current for 500 kV power network.