CAJ | 학술논문

常规PID控制在对象变化时，控制器的参数不能自动修改适应，无法很好地满足轧机厚度控制精度的要求。针对这一问题，设计了一种模糊自适应PID控制器，利用模糊推理方法实现对PID参数在线自适应，来实现AGC系统的稳定，提高厚度控制系统的精度。通过simulink仿真，结果表明模糊自适应PID控制器自适应能力更强、响应快、稳定性好，同时也有更强的鲁棒性，能够使厚度控制得到满意的结果。
상규PID공제재대상변화시，공제기적삼수불능자동수개괄응，무법흔호지만족알궤후도공제정도적요구。침대저일문제，설계료일충모호자괄응PID공제기，이용모호추리방법실현대PID삼수재선자괄응，래실현AGC계통적은정，제고후도공제계통적정도。통과simulink방진，결과표명모호자괄응PID공제기자괄응능력경강、향응쾌、은정성호，동시야유경강적로봉성，능구사후도공제득도만의적결과。
Once the conventional PID control at the object changes, the parameters of the controller cannot be automatically adapted, and it cannot well meet the requirements of thickness control precision of cold rolling mill. According to the problem, a fuzzy adaption PID controller is designed, the fuzzy inference method is used to achieve the PID parameters online self-adaptive to realize AGC stability and the precision of gauge control system is enhance. The results of simulation indicate that fuzzy PID has a better adaptive capacity, faster response, and stronger robustness. It gives a good control performance to the thickness control.