轴流压气机旋转失速和喘振的非线性反馈控制  

Nonlinear feedback control for rotating stall and surge of an axial flow compressor

作　　者：陈振[1] 徐鉴[1] 

机构地区：[1]同济大学航空航天与力学学院,上海200092

出　　处：《振动与冲击》2013年第4期106-110,120,共6页Journal of Vibration and Shock

基　　金：国家自然科学基金重点项目(11032009);上海市重点学科资助项目(B302);中央高校基本科研业务费专项基金资助项目

摘　　要：旋转失速和喘振是轴流压气机中的两种主要的不稳定工作形式,限制了压气机稳定工作范围。提出了一种新的对旋转失速和喘振的非线性反馈控制策略,即把压升作为反馈信号,来补偿节流阀系数值。研究结果表明,这种控制策略很简单,但是能够消除失速时伴随的迟回效应;也能够增加压气机的喘振裕度。Rotating stall and surge are two major unstable forms in an axial flow compressor and limit the maximum range of its stable performance. A new control strategy with nonlinear feedbacks for rotating stall and surge was proposed here. Pressure rise was considered as a feedback to compensate values of throttle coefficient. The results showed that the new control method is simple but can suppress a hysteresis loop associated with rotating stall so that the compressor can avoid to enter into a surge.

关 键 词：旋转失速 喘振 迟回 MG模型 主动控制 

分 类 号：O322[理学—一般力学与力学基础] V231.3[理学—力学]