中国电力2018，Vol.51Issue(4)：101-107,7.DOI:10.11930/j.issn.1004-9649.201611094
风电介入对汽轮机转子寿命影响分析
Study on the Influence of the Intervention of Wind Power on Steam Turbine Rotor Life
摘要
Abstract
In order to achieve the safe operation of wind and thermal power, this paper adopts the finite element method to analyze the load change of the thermal power unit, the temperature field and the stress field of the steam turbine rotor before and after wind power intervention. The dangerous position of the rotor is determined as well. Then the Mises Von stress curve of the rotor is plotted, and the total life loss of the steam turbine rotor is calculated based on the rain-flow counting method and the linear fatigue cumulative damage theoryThe results show that whether the wind power is involved or not, the maximum value of Mises Von stress is always at the root of IP first stage impeller, and the temperature field also has severe change at the same location as well. When wind power is involved, the numbers of the stress cycle will increase so that , the life loss of the steam turbine rotor increasing from 0.000 653 9% to 0.001 408% and the life loss speed increasing 2.15 times as the original one., The study shows that wind power has significant influence on the rotor life.关键词
火力发电机组/风力发电机组/热应力/雨流计数法/低周疲劳/转子寿命Key words
thermal power generation unit/wind power generation unit/thermal stress/rain-flow counting method/low cycle fatigue/rotor life分类
信息技术与安全科学引用本文复制引用
王占洲,曹丽华,卫洪刚,杨明..风电介入对汽轮机转子寿命影响分析[J].中国电力,2018,51(4):101-107,7.基金项目
吉林省科技发展计划项目(20160203008SF) （20160203008SF）
吉林市科技创新计划项目(20161211).This work is supported by Jilin Scientific and Technological Development Program(No.20160203008SF),and Jilin City Science and Technology Development Program(No.20161211). （20161211）
