300 MW亚临界循环流化床发电机组的全程调峰控制研究  

Research on Full-process Peak Regulation Control of 300 MW Subcritical Circulating Fluidized Bed Generator Set

作　　者：孙倩 印江[1] 牛斌[1] 王孝全 张培华[1] SUN Qian;YIN Jiang;NIU Bin;WANG Xiao-quan;ZHANG Pei-hua(Shanxi University,Taiyuan 030013,China;Shanxi Guojin Coal and Electricity Co.,Ltd.,Lyuliang 033000,China)

机构地区：[1]山西大学,太原030013 [2]山西国锦煤电有限责任公司,山西吕梁033000

出　　处：《电力学报》2020年第6期522-527,562,共7页Journal of Electric Power

摘　　要：随着新能源发电大规模并网,火电机组由基荷电源向调峰电源转变,火电机组承担了更多的电网深度调峰需求。为了提高新能源发电利用率,提出一种亚临界循环流化床发电机组参与电网深度调峰的方法,在新能源发电最集中时段,最大限度降低新能源弃风弃光率:以循环流化床锅炉焖炉压火的方式参与电网深度调峰,停炉不停机,发电机不解列,带最低负荷运行,针对大型亚临界循环流化床机组焖炉压火,达到机组全程负荷深度调峰。实际运行效果表明,该调峰方法可以使机组负荷低至6 MW运行,具有一定的指导意义。With the large-scale grid connection of new energy generation,thermal power units have changed from base-load power to peak-shaving power,and thermal power units have undertaken more demand for deep peak regulation of the power grid.In order to improve the utilization rate of new energy power generation,a method for subcritical circulating fluidized bed generator set to participate in deep peak regulation of power grid is proposed.During the period of maximum concentration of new energy power generation,the abandonment rate of new energy is minimized:Circulating fluidized bed boiler participates in the deep peak regulation of power grid in the way of stewing furnace fire,stopping the furnace without shutdown,the generator,and operating with the lowest load.A full-process load control strategy is studied,which aims at the stew furnace pressure fire of a large subcritical circulating fluidized bed unit,and achieves the peak regulation of the whole load depth.The actual operation results show that the method can make the unite run as low as 6 MW,which has certain guiding significance.

关 键 词：循环流化床锅炉 全程调峰 压火 停炉不停机 负荷控制 

分 类 号：TM621.2[电气工程—电力系统及自动化]