摘要
针对发电厂的除氧器温度控制系统中被控对象具有大滞后、大惯性、非线性等特点,以及其精确的数学模型难以建立的实际情况,采用模糊控制策略,设计了发电厂除氧器的模糊温度控制系统。同时,根据输入量误差及误差率的变化,设定了一个修正因子以调整模糊控制器的控制规则,从而很好地改善了系统的动态特性,提高了稳态精度。
The fuzzy control is used to the deaerator's temperature control system in order to solve the control difficulty of a plant with pure time-delay, big inertia, nonlinear structure and hard to establish its precise mathematical model. In order to improve dynamical and static performance of the system, the system gives a modifying factor to adjust fuzzy rules according to change of temperature.
出处
《机电工程技术》
2008年第1期51-53,共3页
Mechanical & Electrical Engineering Technology
关键词
除氧器
模糊控制
修正因子
模糊推理
deaerator
fuzzy control
fuzzy inference
modifying factor
