模糊PID控制的中频电炉温控系统设计

The temperature control systerm design of medium frequency induction furnace based on the fuzzy PID

针对中频电炉的结构,采用参数辨识方法,通过分析中频电炉的温升曲线获得相应的数学模型。针对该模型应用MTALAB仿真工具设计模糊PID控制器,该控制器根据误差及误差的变化率现场整定PID控制的参数。比较常规PID控制与模糊PID控制的仿真效果可以发现,采用模糊PID控制器根据误差与误差的变化率现场整定PID控制的参数,可以有效地提高PID控制器的控制效果。

According to the structure of medium frequency induction furnace, this paper uses the method of parameter identification to get the mathematical model through analysising the medium frequency induction furnace temperature curve. According to the mathematical model to design the fuzzy PID controller, the fuzzy PID controller can adult the parameters of PID according to error and error changing rate. Through Comparing the effection of the traditional PID control with the fuzzy PID control by using the MTALAB simulation tools, We get the conclusion that the fuzzy PID controller can improve the control effect.