摘要
发展了一种基于极大似然估计法求解微燃机特性反问题的方法。构建了微燃机全工况模型和反问题求解方法。为对上述模型和方法进行验证,将模拟数据加上测量误差作为反问题的求解条件,反推了单元部件额定效率和压气机特性模型参数。结果表明,单元部件额定效率估计值与原给定值差别较小,压气机特性模型能够较好地表达压气机特性线信息。
Based on maximum likelihood estimation method,a method of solving the micro-turbine characteristics inverse problem was developed.Micro-turbine model and the method of solving inverse problem were built.In order to validate the model and the method built,the simulated results were added into errors as the solving conditions of the inverse problem,and the design parameters and compressor characteristic model parameters were estimated.The results show that the parameters were estimated perfectly,and the compressor characteristic model with the estimated parameters can properly predict the centrifugal compressor characteristics.
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
2011年第4期541-545,共5页
Journal of Engineering Thermophysics
基金
国家973计划资助项目(No.2007CB210102)
关键词
微燃机
反问题
极大似然估计法
micro-turbine
inverse problem
maximum likelihood estimation
