基于模糊自调整PID控制器的汽包水位控制

On drum water level controller based on fuzzy self-tuning PID

针对热电厂汽包水位波动频繁,模型复杂的特点,设计了汽包水位模糊自调整PID控制器。该控制器充分结合了PID控制器稳态精度高和模糊控制器鲁棒性强、响应速度快的优点。设计出的控制器在MATLAB仿真软件中进行仿真,从仿真效果上验证了所设计控制器的优越性。最后将得到的模糊控制算法运用到工厂所用的分散控制系统中,使用效果良好。

The boiler water level in power plant fluctuates frequently,and the model is complex,so fuzzy self-tuning PID controller is designed for drum water level controller.The controller combines both the characteristics of PID and fuzzy controller.From the simulation results in MATLAB simulation software,we found the superiority of the designed controller.Then the fuzzy control algorithm is used in the distributed control system which achieved good effect.