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针对ＧＪ型光辐射加热炉在对不同材料加热时，其数学模型参数变化范围较大的特点，提出了采用滑模变结构控制代替常规ＰＩＤ控制的方法并对炉温变结构控制系统进行了仿真研究研究结果表明，采用变结构控制的炉温控制系统，不仅有很好的动态特性，而且具有较强的鲁棒性，对对象参数摄动具有很好的自适应能力，这将大大增加光辐射加热炉的应用范围
Aiming at the characteristics of GJ-type optical radiant heating furnace when heating different materials, the parameters of the mathematical model have a wide variation range. The method of using sliding mode variable structure control instead of conventional PID control is proposed, and the temperature variable structure control system Simulation results The results show that the furnace temperature control system with variable structure control not only has good dynamic characteristics but also has strong robustness and good adaptability to the perturbation of object parameters, Increase the scope of application of optical radiation furnace