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具有多个温区的电加热炉是一种典型的多输入多输出被控对象，同时它具有强耦合、非线性、变参数等不利于控制的特性．针对此类热工对象，本文提出一种不依赖电炉精确数学模型的智能控制方法这种方法将各温区间的耦合关系看作一种可测干拢，从而利用前馈补偿的原理来实现各温区的解耦控制；然后，对解耦后的各温区，分别设计一个独立的智能分段控制器该智能控制系统是以一台ＰＣ机为核心实现的，在一台三个温区的平卧管式电加热炉上进行实时运行，性能测试表明，该智能控制系统具有非常好的解耦特性，同时，具有很高的控制精度．
Electric heating furnace with multiple temperature zones is a typical multi-input and multi-output controlled object, at the same time, it has the characteristics of strong coupling, nonlinearity, variable parameters and other unfavorable control. For such a thermal object, this paper presents an intelligent control method that does not depend on the precise mathematical model of the electric furnace. This method considers the coupling relationship among temperature ranges as a measurable dry-ground, so that the principle of feed-forward compensation Temperature decoupling control; then, for each decoupled temperature zone, respectively, to design an independent intelligent segmentation controller The intelligent control system is based on a PC as the core to achieve in a three temperature zone The real-time running on the horizontal tube electric heating furnace, the performance test shows that the intelligent control system has a very good decoupling characteristics, at the same time, with high control accuracy.