参数自适应模糊PID控制在变压供暖供水中的设计与运用

针对供暖供水系统具有的非线性、大滞后、系统参数容易改变等特点,以及变压力供暖供水系统的特殊要求,设计了一种参数自适应模糊PID控制器,以改善传统PID控制时参数整定困难、适应性差等缺点.仿真结果表明该控制器可使变压供暖供水系统在负荷发生剧烈变化时能很好地实现供暖供水压力的平稳调节,并且能使压力保持在较小的误差范围内.当系统参数发生变化时,该控制器具有较好的适应能力.

Parameter Adaptive Fuzzy PID Control for Variable-pressure Water Supply Heating System

The water supply heating system has some characteristics,such like non-linear,large time delay,parameters change easily and so on.Also the system have to supply water in a variable-pressure.The parameter adaptive fuzzy PID controller designed to improve PID control which is parameters set difficulty and adaptability badly.Using this controller,the simulation shows not only realized placidly the heating water pressure when the load changes drastically but also maintained the pressure in a small error,and the system has better adapting ability if parameters changed.