基于单纯形法的卷取张力模糊控制系统的设计

摘要

张力控制的好坏直接关系到带钢的质量,传统PID控制不能完全满足其性能要求,针对西门子T400工艺板间接张力控制的特点,结合唐山建龙钢铁公司现场改造的实际情况,设计了一种模糊控制器用于间接张力控制,并且将单纯形法用于优化模糊控制器的参数.结果表明:该系统具有较好的跟随性能,稳态精度高,超调量明显较小,调节时间得到了明显改善.在实践过程中证明其控制效果更好,符合控制系统的要求.%The quality of tension control is directly related to the quality of strip steel, the traditional PID control can not fully meet their performance requirements, aimed at Siemens T400 technology board for indi-rect tension control characteristics, combined with Tangshan Jianlong Iron and Steel Company actual situation at the scene, a kind of fuzzy controller was designed for indirect tension control, and simplex method was used for optimization of fuzzy controller parameters. The results show that: the system has a better following per-formance, high steady-state accuracy, smaller overshoot, setting time has been significantly improved. In practice, its control effect is better, in line with the control system requirements.