从锅炉制粉系统特性、蓄热能力、滑压运行方式及控制策略等方面分析了影响引进型 3 0 0 MW火电机组变负荷响应能力的主要因素 ,提出了加快负荷响应、优化机组 AGC运行品质的措施。通过 CCS变负荷试验和 AGC实际运行测试表明 :火电机组在提高变负荷的速率、缩短变负荷的迟延时间有潜力可挖 ,使之能更好地适应电网调度的要求 This paper analyzes the main factors that affect the capacity of variable load response of imported 300 MW thermal power units based on the features of pulverizing system, heat storage capacity, sliding pressure operation mode and control strategy, and puts forward some measures to speed up the load response, optimize the operation quality of AGC units The measure. Through the CCS variable load test and AGC actual operation test, it shows that the thermal power unit has the potential to improve the rate of variable load and shorten the delay time of variable load, so that it can better meet the requirements of grid dispatching