从设计和运行实践两方面分析研究了国产300MW机组变负荷调峰时,锅炉燃烧的稳定性、水循环可靠性、汽包安全性以及汽轮机主辅机运行安全性、机组振动分析、DEH控制系统运行方式的影响等安全问题,其分析结果为机组安全调峰运行提供了可信的依据,对同类型机组调峰运行具有一定的指导作用.“,”According to the designed structure andpractical operahon in this paper are analyzed and researched the safe problenl of domestic 3OO MW thermal power generator units with varying load peak operation, such as the stabillty of boiler burr1ing, the reliability of water cycling, the safeness of steam drun1, thesafeness of steam turbine units operation, the a11alysis ofunit's vibration and the operatll1g way of DEH controlsystem.The result of the analysis provide convinced ba-sis for units safe peak operation.This paper is useful forpeak operahon of the same type units.