摘要
在国产300MW汽轮机机组的滑参数停机过程数据所建立的低周疲劳损伤动态非线性模型基础上,采用多项式控制性能评估方法,对汽轮机转子以损伤为对象的控制性能进行了研究。将理论最小方差作为评估基准,通过与实际输出量的方差相除,建立了控制性能评估指标,仿真例子验证了所提方法的有效性。
Based on the dynamic nonlinear model of sliding shut-down of domestic 300 MW steam turbine, control performance assessment with damage as target is studied using polynomial methods. In order to simplify the control object, nonlinear model is decomposed into dynamic linear part and static nonlinear part. Based on theoretical minimum variance theory, with the actual output divided by the variance, a control performance assessment indicators is established. Simulation examples demonstrate the effectiveness of the proposed method.
出处
《热力透平》
2014年第2期107-110,154,共5页
Thermal Turbine
关键词
低周疲劳
性能评估
汽轮机
low cycle fatigue
performance assessment
steam turbine
