摘要
基于机组长期运行数据和在线性能计算数据,统计分析了机组的实际性能特性,提出与过程热力特性及热力试验标准相一致的机组性能稳定态判别准则。由筛选出的满足稳定态准则的数据统计分析分别得出了机组在不同的外界边界条件和不同运行参数下以及同一运行工况内在线性能计算模型输出的不确定度范围,为基于模型的优化决策调整和诊断提供参考。统计得出的热力机组煤耗量特性曲线反映的是机组在实际运行条件下的真实特性,并以厂内负荷分配方案为例,验证了针对性经济运行措施的有效性。
Based on the long term operating data and on-line performance calculation ones of a power plant,a statistico-analytical study was performed of the actual performance characteristics of the plant.Proposed was a criterion for discriminating the plant performance steady state compatible with the process thermodynamic characteristics and thermal test standards.Through a statistical analysis of the sifted out data,which meet the steady-state criterion,obtained respectively was the uncertainty range of the output of an on-line performance calculation model for plants under different outside boundary conditions,different operating parameters as well as identical operating conditions,thus providing useful reference data for optimization decision-making adjustment and diagnosis both based on the model in question.The coal consumption characteristic curves of the plant obtained through statistical calculations reflect the actual characteristics of the plant under real operating conditions.With the in-plant load distribution version serving as an example,the effectiveness of the measures taken for economic operation has been verified.
出处
《热能动力工程》
EI
CAS
CSCD
北大核心
2007年第6期661-664,共4页
Journal of Engineering for Thermal Energy and Power
基金
国家自然科学基金资助项目(50576022)
关键词
热力机组
在线性能计算
统计特性
不确定度
负荷分配
thermal power plant,on-line performance calculation,statistical characteristics,uncertainty,load distribution
作者简介
李利平（1971-），男，陕西榆林人，华北电力大学博士研究生．
