中国舰船研究2016，Vol.11Issue(6)：118-123,6.DOI:10.3969/j.issn.1673-3185.2016.06.018
模型准确性对系统管网泄漏诊断的影响分析
Effect analysis of model accuracy on leakage diagnosis of pipe network system
摘要
Abstract
This paper proposes an evaluating method for the effectiveness of leakage diagnosis by using quantitative index of model accuracy,aiming at the pressure sensitivity analysis-based leakage diagnosis method of the pipe network brought by model mismatch. FlowMaster software is used to establish the pipe network models with different accuracy of a real refrigerant system. Regarding the calibrated model as the benchmark of the pipe network,the improved Grey Relational Analysis(IGR2)is proposed to calculate model mismatch by estimating the similarity of pressure measurements between each model and the bench⁃mark model. Thus,the indexes of quantitative model accuracy are achieved. Furthermore,Fault Diagnosis Success Percent(FDSP)is defined to calculate the effectiveness of leakage diagnosis. The leakage is diag⁃nosed based on the models with different accuracy,and the effects of model accuracy on leakage diagnosis are obtained. Results illustrate that the effectiveness of this leakage diagnosis method is improved when the model becomes more accurate. When the refrigerant pipe network model accuracy is higher than 0.75,the FDSP is basically over 90%which shows that this leakage diagnosis is robust to model mismatch.关键词
系统管网/泄漏诊断/压力敏感性分析/模型误差/模型准确度量化/FlowMaster软件Key words
pipe network system/leakage diagnosis/pressure sensitivity analysis/model error/quantifi-cation of model accuracy/FlowMaster分类
交通工程引用本文复制引用
刘倩,张扬,徐新华,谢军龙,王飞飞,严天..模型准确性对系统管网泄漏诊断的影响分析[J].中国舰船研究,2016,11(6):118-123,6.基金项目
教育部新世纪优秀人才支持计划资助项目（NCET110189）；教育部高等学校博士点专项基金资助项目 （）
