摘要
针对工业生产中闪蒸罐压力控制系统的时变非线性、大滞后等问题,为了提高闪蒸罐压力控制效果,将传统PID控制算法和灰色预测算法相结合,设计出一种基于灰色预测模型的模糊PID控制器。仿真结果表明:它与传统PID控制相比,具有更快的动态响应、调节速度和更好的稳态性能,同时在出现扰动时比模糊PID控制有更好的抗干扰性和更快的调节速度。
Considering time-varying nonlinearity and large lag in the flash tank pressure control system and for purpose of improving the flash tank pressure control effect, having traditional PID control combined with grey predictive control to design a grey prediction model-based fuzzy PID controller was implemented. The simulation results show that the gray fuzzy PID control, as compared to the traditional PID control, has faster dynamic response and regulation speed and better steady-state performance, as well as a better anti-interference ability and faster regulation speed than the fuzzy PID control while a disturbance occurs.
引文
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