摘要
针对某一类非最小相位系统的特性，提出一种新型模糊控制器的设计方法，改进了ＰＩＤ型模糊控制器的结构。对输入变量设计了一种简单的可调整宽度的三角形隶属度函数；根据偏差和偏差变化率的相平面图，建立了调节系统的动态特性和规则基之间的定性关系，使规则基的设计趋于简单、合理。水轮机调节系统的仿真结果表明了这种方法的有效性。
In accordance with a kind of nonminimum-phase systems, a novel fuzzy controller was proposed. The structure of the conventional PID-type fuzzy controller was modified. A simple and variable-span triangular membership function was designed for the input variables. The qualitative relation was built up between the process dynamics and the rule base of the fuzzy controller according to the errors and error rates of the system. The computer simulation results have shown that the scheme is feasible to realize the optimal control of the hydraulic turbine regulating system.
出处
《控制与决策》
EI
CSCD
北大核心
1999年第1期51-55,共5页
Control and Decision
关键词
模糊控制
隶属度函数
水轮机
调节系统
fuzzy-control, membership function, dynamic behaviour, phase-plane, hydraulic turbine regulating system
