摘要
该文研究燃气轮机系统建模中增强模型通用性和精细性问题,归纳开拓相关的途径与方法。首先,应用新的建模方法建立高通用性的典型单元模块精细模型;其次,通过建立关键变量或因素对燃气轮机系统及部件性能影响的修正公式,来进一步提高单元模块模型的精度;最后,应用系统流程超结构有向图法和管道方程来增强系统联接的通用性和精细性。大量实例应用研究验证了燃气轮机系统建模中增强通用性和精细性措施的有效性和可行性。
The aim of this paper is to investigate the methods that can enhance the universality and precision of gas turbine modeling. Many effective methods are proposed and summarized in the paper. Firstly, by means of some new modeling measures, such as the concept of fully operating regions and the combination of theoretical analysis and data fitting method, the models with high universal and precise are set up for gas turbine components. Then, several amendment formulas, including the relationship between compressor efficiency and pressure ratio, are used to upgrade the precision of these models. Finally, the universality and precision of system connection is strengthened through the application of superstructure vector diagrams and fundamental flow equations The validity and feasibility of these methods have been well verified in case studies.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2005年第21期106-111,共6页
Proceedings of the CSEE
基金
国家自然科学基金项目(90210032)国家863高技术基金项目(2002AA525012)。~~
关键词
燃气轮机
建模
通用性
精细性
Gas turbin
Modeling
Universality
Precision
