模糊-PI双模控制在小型汽轮机数字电液控制系统中的应用  

Application of Fuzzy-PI Dual-Mode on Small Turbine Digital Electro-Hydraulic Control

作　　者：李艳[1] 张晓婕[1] 

机构地区：[1]陕西科技大学,陕西西安710021

出　　处：《纸和造纸》2015年第11期30-33,共4页Paper and Paper Making

基　　金：陕西省科学技术研究发展计划项目(2013K07-28);陕西省教育厅专项科研计划项目(14JK1094)

摘　　要：分析死区特性对控制系统性能的影响,将模糊-PI双模控制器引入到小型汽轮机的速度控制系统中,以解决小型汽轮机调速系统中存在死区、饱和等非线性特性的问题。仿真结果表明,模糊-PI双模控制器能很好地克服死区特性对控制系统性能的影响,能获得良好的动静态性能,并且在对象参数、结构发生变化时具有很好的适应性。Analyzed the influences of dead zone characteristic on control system performance, Fuzzy-PI controller was introduced into the speed control system of small turbine to solve the problems of dead, saturation and other non-linear characteristics existing in the small steam turbine speed control system. Simulation results showed that the fuzzy-PI controller is effective in overcoming the influence of the dead zone characteristic to the control system performance. Meanwhile, a better dynamic and static performance are obtained, and good adaptability is maintained when the object parameters, structure changes.

关 键 词：模糊-PI双模控制 非线性 汽轮机 数字电液控制 

分 类 号：TK263[动力工程及工程热物理—动力机械及工程]