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运用电机电气控制系统,结合冷连轧塑性变形原理,对带钢冷连轧机系统建立了稳态的数学模型。并用MATLAB/Simulink对冷连轧动态过程进行了数值模拟仿真。针对冷连轧控制系统中存在时滞、时变、大惯性、非线性等问题和传统PID控制器整定参数的局限性,提出了将模糊控制和传统PID控制结合在一起,构造成一个模糊PID控制器。最后通过数值模拟仿真实验证明:与传统PID控制器相比,模糊自适应PID控制器的动静态性能好,即响应时间短,超调量小,稳态性能好。
Based on the motor electrical control system and the principle of plastic deformation in cold tandem rolling, a steady state mathematical model was established for cold strip mill system. The dynamic simulation of cold tandem rolling process was simulated by MATLAB / Simulink. Considering the limitations of time-delay, time-varying, large inertia, nonlinear and other traditional PID controller tuning parameters in cold tandem rolling control system, this paper proposes to combine fuzzy control and traditional PID control into a fuzzy PID Controller. Finally, the numerical simulations show that compared with the traditional PID controller, the fuzzy adaptive PID controller has good dynamic and static performance, that is, the response time is short, the overshoot is small and the steady performance is good.