结合电厂设备实际安装状况，对超临界660 MW机组系统进行理论可行性和安全性分析。在烟风系统、启动系统、汽水系统、疏水系统等方面进行优化设计。优化调整后，试运行结果表明，机组各项指标均达到了良好要求，此次优化达到了提高机组运行经济性和稳定性的目的。

The theoretical feasibility and safety analysis were investigated for the 660 MW supercritical unit, combined with the actual situation of equipment installation in power plants. The designs of flue gas system, start-up system, steam-water system and drainage system were optimized. The trial operation results show that all indexes of units have achieved good results, and the optimization designs have reached the purpose of improving the unit operation’s stability and economy.