节流配汽汽轮机组一次调频经济代价分析  

Analysis on Economic Cost of Primary Frequency Regulation of Throttling Steam Turbine Units

作　　者：樊印龙[1] 张宝[1] 顾正皓[1] 秦攀[1] 吴文健[1] 

机构地区：[1]国网浙江省电力公司电力科学研究院,浙江杭州310014

出　　处：《中国电力》2016年第7期86-89,共4页Electric Power

摘　　要：对节流配汽汽轮机组来说,采用调节阀大开度的运行方式在提高经济性的同时会降低机组的一次调频能力。基于试验数据与变工况计算分析,得到了上汽—西门子1 000 MW汽轮机组的一次调频能力曲线,给出了满足规定一次调频能力的滑压曲线与调节阀开度高限曲线,结合实际性能试验结果,得到了该种机型满足规定一次调频能力要求的运行工况与调节阀以45%开度运行时的机组供电煤耗差别。结果表明,通过提高主蒸汽压力,牺牲一定经济性,可以保证节流配汽汽轮机组的一次调频能力满足相关规定的要求。For throttling admission steam turbine units, operation with large regulating valve opening may improve the unit economic performance but lower its primary frequency regulation capability. In this paper, through the test data analysis and the variable condition calculation, the primary frequency regulation performance curve is obtained for the 1 000-MW steam turbine units. In addition, the sliding pressure curve and the valve opening high limit curve which meet the primary frequency regulation standards are also presented. Considering the practical performance test results, the net coal consumption rate is calculated for the operation conditions of qualified primary frequency performance and 45% regulating valve opening. The results show that by improving the main steam pressure and sacrificing some economic performance, the primary frequency regulation performance of the throttling admission steam turbine units can meet the requirements of related standards.

关 键 词：汽轮机 一次调频 滑压曲线 调节阀 供电煤耗 

分 类 号：TM621[电气工程—电力系统及自动化]