摘要
双容水箱是典型的非线性时滞系统,采用常规模糊PID控制时,超调量大、振荡剧烈、控制效果不理想。本文将变论域模糊控制和PID控制结合起来形成变论域模糊PID控制器解决了上述问题。介绍了变论域模糊PID控制器的结构设计及伸缩因子的选择方法,并给出了具体的控制算法。使用Matlab建模仿真,结果表明该控制器的自适应能力强,且无超调量。
A fuzzy PID controller based on variable universe was employed to improve the level control of the double-holding water tank of non-linearity and time lag,and the configuration design was illustrated and the control arithmetic was presented.Simulation results show that both adaptive ability and overshoot are satisfying.
出处
《化工自动化及仪表》
CAS
北大核心
2010年第4期29-32,共4页
Control and Instruments in Chemical Industry
关键词
模糊控制器
时滞系统
变论域
仿真
fuzzy controller
time-lag system
variable universe
simulation
