基于差分进化算法的离心式压缩机建模  

Centrifugal Compressor Modeling Based on Differential Evolution Algorithm

作　　者：牛大鹏[1,2] 王小刚[1] 董世建[1] 王福利[1,2] 

机构地区：[1]东北大学信息科学与工程学院,辽宁沈阳110819 [2]东北大学流程工业综合自动化国家重点实验室,辽宁沈阳110819

出　　处：《东北大学学报（自然科学版）》2012年第4期457-460,共4页Journal of Northeastern University(Natural Science)

基　　金：国家自然科学基金资助项目(61074074);国家高技术研究发展计划项目(2009CB320601);中央高校基本科研业务费专项资金资助项目(N110304009)

摘　　要：根据离心式压缩机的工作特性及流体力学、能量守恒和质量守恒等物理学原理,建立了单级压缩机的机理模型.将各级压缩机的模型串联得到了某钢厂CCPP煤气系统低压端三级离心式压缩机的机理模型,并把多级压缩机机理模型的参数辨识问题转化为优化问题,采用差分进化算法确定模型中的未知参数.模型验证结果表明,所建立的模型能够反映离心式压缩机的工作特性,为压缩机防喘控制奠定了模型基础.The mechanism model of single stage compressor was built on the basis of the centrifugal compressor＇s characteristics,the fluid mechanics,the energy conservation and the mass conservation principles.Several models of single stage compressors in series were integrated to compose the mechanism model of a steel CCPP gas system＇s three-level centrifugal compressor on the low pressure side.The parameter identification problem of the multi-stage compressor model was transformed into an optimization problem,and differential evolution algorithm was used to decide the unknown parameters in the model.Model validation results showed that the developed model could reflect the operating characteristics of centrifugal compressors and laid a model foundation for compressors＇ anti-surge control.

关 键 词：离心式压缩机 机理模型 参数辨识 差分进化算法 防喘控制 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置]