模糊 PID 控制器在刮板机链条的张力控制

摘要

Establishes the tension control model of scraper conveyor,and combines with fuzzy control and PID control technology,designs fuzzy PID controller.The control theory of the fuzzy PID controller to chain tension is ana-lyzed.The influence of parametrical nonlinearity and time -characteristic to scraper conveyer chain tension control system is studied.The fuzzy control rule and the method of fuzzy reasoning is developed.Utilizes MATLAB software simulating the established model,the simulation result shows that the fuzzy PID control has a good performance,it better satisfies the tension control requirement of scraper conveyor chain.%本文建立了刮板机张力控制模型，并结合模糊控制和 PID 控制技术设计了模糊 PID 控制器，分析了模糊 PID 控制器对链条张力的控制原理，研究了参数非线性、时变性对刮板输送机链条张力控制系统的影响，制定了模糊控制规则以及模糊推理的方法。利用 MATLAB 软件对建立的模型进行的仿真，表明模糊 PID 控制有较好的执行性能，较好地满足刮板机链条的张力控制要求。