【摘要】 根据电极调节系统的实际组成情况,建立了电弧炉电极调节系统的动态数学模型。由于熔化期和精炼期两个不同冶炼阶段对电极升降控制性能的要求不同,同时结合被控对象的自身特点以及稳态误差问题,设计了变论域模糊积分复合控制器。在所建立的电极调节系统模型基础上,利用Simulink分别对变论域模糊积分复合控制和传统的比例-积分-微分(PID)控制进行了仿真。仿真结果表明:与常规PID控制相比,采用变论域模糊积分复合控制器能使电极调节系统获得更好的性能指标。更多还原

【Abstract】 According to actual components,a dynamic mathematical model describing the electrode regulating system of an electric arc furnace was developed.Then,the fuzzy-integral compound controller based on variable universe was designed because of the various control performance requirements of the electrode regulation in different melting stages,the controlled object’s own characteristics and the steady state error.Based on the electrode regulating system model,the fuzzy-integral compound control based on variable universe and the traditional proportional-integral-derivative(PID) control were simulated respectively in Simulink environment.The simulation results show that the proposed controller,compared with the effect of the traditional PID control,can achieve better performance.更多还原