灰色系统理论在LNG电厂燃机机型选择中的应用
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摘要
本文基于灰色系统理论对LNG燃机电厂中燃气轮机机型选择的问题进行
    了研究。即在同等发电装机容量下,如何采用灰色系统评价理论,在单轴燃气—
    蒸汽联合循环发电机组或多轴燃气—蒸汽联合循环发电机组两种机型之间,进行
    评判,作出现实和科学的选择。首先从众多灰色系统理论中,引出适合对燃机机
    型评价的灰色系统理论的分枝—灰色统计决策方法。其次根据两种燃机机型的不
    同特点,构造燃机综合性能评价指标体系,并建立相应的灰色评价数学模型。再
    次用所构造的灰色评价数学模型应用于两种燃机机型,请五位燃机专家对两种燃
    机,分别进行评判打分。最后经过必要的数学计算,得出了在我国国情下,选择
    多轴燃机优于选择单轴燃机的结论。最后通过对韩国采用多轴燃机顺利推进燃机
    成套国产化实践的分析,提出在我国国情下,选择多轴燃机,大力推进国产化的
    建议和设想。文章所研究的是实际工程实践中遇到的问题,具有较强的针对性和
    实践性。文章的结论对目前我国正在大力发展的燃机发电事业,对我国的燃机设
    备成套的国产化进程,具有一定的现实意义。
Basing on the gray system theory, this paper discussed type choice of gas
    turbine used in LNG power plant. That is to say, under the same output, how to use
    the gray system evaluation theory to choose realistically and scientifically between
    single shaft gas-steam combined cycle power train and multi shaft gas-steam
    combined cycle power train. Firstly, the author elicited one branch of the gray system
    theory that is suitable to evaluate the type of gas turbine among so many gray system
    theories------gray statistic decision method. Secondly, according to the characteristics
    of two types, the author constructed an evaluation index system for gas turbine’s
    comprehensive performance, and a correspondent gray evaluation mathematical
    model. Thirdly, the author applied the gray evaluation mathematical model to two
    types of gas turbine, and invited five experts to respectively mark those two types of
    gas turbine. Fourthly, after necessary mathematical calculation, the author concluded
    that under current conditions in China, multi shaft gas turbine is better than single
    shaft gas turbine. Finally, through analyzing the application of multi shaft gas turbine
    to promote the localization practice of whole set of gas turbine in Korea, the author
    suggested and supposed that under current conditions in China it is better to choose
    multi shaft gas turbine to powerfully promote the localization. This paper discussed
    problems occurred during engineering practice, which is typical and practical. The
    conclusion of this paper has certain realistic meaning to develop gas turbine power
    plant and promote the localization of whole set of gas turbine in China.
引文
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