内模PID控制在加热炉出口温度控制中的应用

IMC-PID Application to Control Exit Temperature of Heating Furnace

针对加热炉非线性、大滞后、大惯性的特点,采用内模PID控制方法对其出口温度进行控制。仿真与实践结果表明内模PID控制器具有良好的性能,出口温度能够得到良好地控制。

In petroleum refineries,heating furnace is commonly used though it consumes much energy; and the exit temperature as an important index of heating furnace control means great to follow-up technical process.Regarding the nonlinearity and large time delay and inertia of the heating furnace,the IMC-PID control method was employed to control the furnace＇ s exit temperature.Simulation results and application in-situ show that this method has good performance in the exit temperature control.