基于PID参数模糊自整定的船用锅炉水位控制器设计与仿真研究

Simulation & Design of Water Level Controller for Marine Boiler Based on the Self-tuning Parameters of Fuzzy-PID

针对常规PID控制器不能在线进行参数自整定的问题,结合模糊控制技术,提出了一种PID参数模糊自整定的方法,运用MATLAB模糊逻辑工具箱进行仿真。研究表明:该模糊PID控制器能迅速消除系统余差,改善普通模糊控制器的性能;既具有PID控制器高精度的优点,又具有模糊控制器快速、适应性强的特点,保证了调节系统具有良好的动、稳态特性。

This paper gives the method of the self-tuning parameters of the fuzzy PID and simulinks with the fuzzy logic tool box, linked with the fuzzy control technology, which solves the problem of the unable self-tuning normal PID on line,the study shows the Fuzzy PID can eliminate quickly the error of the system to improve the ordinary fuzzy controller. It is so precise and quick as the normal PID and more applicable, which assures the character of moving and steady-state in this adjustable system