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首页> 外文会议>Proceedings of the Fifth symposium on fractional differentiation and its applications >FRACTIONAL ORDER TEMPERATURE CONTROL OF A STEEL SLAB REHEATING FURNACE ROBUST TO DELAY CHANGES
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FRACTIONAL ORDER TEMPERATURE CONTROL OF A STEEL SLAB REHEATING FURNACE ROBUST TO DELAY CHANGES

机译：板坯加热炉强健的分数阶温度控制延迟变化

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摘要

This paper proposes a new strategy to control the temperature of a steel slab reheating furnace based on fractional order controllers. First, a dynamic model of this process is obtained from an identification procedure applied in an industrial furnace. This yields a second order plus time delay transfer function. Moreover it is shown that this process experiences large time delay changes. Then fractional order integral controllers (FI) combined with Smith predictors are designed, which are robust to changes in the time delay. Simulated results of standard PI controllers (which are the ones used in the studied furnace) combined with Smith predictors are compared with the proposed FI controllers also combined with Smith predictors. These show that the fractional order controller outperforms the PI controller in the studied industrial process and directly implies lower fuel consumption.
机译：提出了一种基于分数阶控制器的钢坯加热炉温度控制新策略。首先，从工业炉中采用的识别程序中获得该过程的动态模型。这产生了二阶加时间延迟传递函数。而且，表明该过程经历较大的时间延迟变化。然后设计了结合史密斯预测器的分数阶积分控制器（FI），该控制器对时间延迟的变化具有鲁棒性。将标准PI控制器（在所研究的熔炉中使用的）与Smith预测器组合的模拟结果与建议的还与Smith预测器组合的FI控制器进行了比较。这些表明在研究的工业过程中，分数阶控制器的性能优于PI控制器，并直接暗示了更低的燃料消耗。

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