基于改进PSO-Fuzzy-PID的矿热炉电极升降控制仿真

Miner Heat Furnace Electrode Lifting Control Simulation Based on Improvement of PSO-FUZY-PID

矿热炉在运行过程中易受电极的影响,导致冶炼时耗电量增加,严重影响了产品的质量和产量,降低了生产效率。因此提出基于改进PSO-Fuzzy-PID的矿热炉电极升降控制方法。将TMR磁传感器安装到矿热炉上,获取外磁场响应信号,确定电极的实时位置。利用罗氏线圈设计二次侧电流检测系统,检测电极在运行过程中产生的二次侧电流。通过PSO算法优化Fuzzy-PID控制器的参数,建立PSO-Fuzzy-PID控制器,将二次侧电流输入PSO-Fuzzy-PID控制器中,通过调节电极二次侧电流完成矿热炉电极的升降控制。实验表明,上述方法可有效控制矿热炉的电压和电流,稳定性高,在控制响应试验中5s内可达到额定值,调节时间控制在0.5s内,所得数据证明了研究方法对矿热炉电极升降控制的效率更高。

Currently,the arc furnace is easily affected by the electrode,leading to an increase in power consumption and a reduction in the quality and output of the product as well as the production efficiency.Therefore,a method of controlling the electrode lifting of the arc furnace was proposed based on improved PSO-Fuzzy-PID.Firstly,a TMR magnetic sensor was installed on the arc furnace to obtain the response signal of the external magnetic field,and thus to determine the real-time position of the electrode.Then,a secondary side current detection system was designed by Rogowski coil,for detecting the secondary current generated by the electrode during operation.Moreover,the parameters of the Fuzzy-PID controller were optimized by the PSO algorithm.Meanwhile,a PSO-Fuzzy-PID controller was constructed.Furthermore,the secondary side current was input into the PSO-Fuzzy-PID controller.Finally,the electrode of the arc furnace could be controlled by adjusting the secondary current of the electrode.The experimental results show that the method can effectively control the voltage and current of the ore thermal furnace,with high stability.In the control response test,the rated value can be reached within 5S,and the adjustment time is controlled within O.5s.The following conclusions can be drawn from experimental results.The method can control the voltage and current of the arc furnace effectively,with high stability.The rated value can be stable within 5s in the control response test,and the adjustment time is controlled within O.5s.The data prove that the proposed method is more efficient in controlling the rise and fall of the electrode of the arc furnace.