660 MW调峰机组运行经济性研究  

Economy Study of Variable Load Operation for 660 MW Steam Turbine

作　　者：李芒芒 周雪斌 易晓坚 LI Mangmang;ZHOU Xuebin;YI Xiaojian(China Energy Engineering Group Central China Electric Power Test and Research Institute Co.,Ltd.,Changsha 410000,China)

机构地区：[1]中国能源建设集团华中电力试验研究院有限公司,湖南长沙410000

出　　处：《湖南电力》2020年第4期24-26,35,共4页Hunan Electric Power

摘　　要：随着国内用电结构发生改变,大型火力发电机组需按照要求参与电网调峰工作。针对某电厂660 MW机组,根据性能试验的供电煤耗结果,比较该厂机组深度调峰运行下低负荷和启停两班制调峰运行方式的经济性情况,发现多台机组的电厂负荷容量越大、调峰时间越长,启停两班制经济性越显著。对于亚临界调峰机组,低负荷运行调峰方式的经济性始终优于两班制方式,但是如果调峰时间越长,尤其是深度调峰不限于热态时间启机,启停两班制运行方式将更具节能减排意义。With the change of domestic power consumption structure,large-scale thermal power units should participate in the peak regulation according to the requirements.In this paper,taking the 660 MW unit as the object,according to the coal consumption results of the performance test,the two operation mode of the economic situation including low-load operation and two-shift system mode under the depth peak shaving operation is compared.If the load capacity of the power plant is larger and the peak-shaving time is longer,the economy of the start-stop double shift system is more remarkable.For subcritical peaking units,the economic mode of low load operation is always better than that of two shift system.However,if the peak regulation time is longer,especially the deep peak regulation is not limited to the hot start time,the two shift system operation mode will has more energy-saving significance.

关 键 词：深度调峰 低负荷 两班制 经济性 

分 类 号：TM732[电气工程—电力系统及自动化]