基于模糊自适应PI算法的直流电机控制系统  

DC Motor Control System Based on Fuzzy Adaptive PI Algorithm

作　　者：张志伟[1] 李永强[1] 何大龙 ZHANG Zhi-wei;LI Yong-qiang;HE Da-long(Academy of Opto-Electronics,China Electronic Technology Group Corporation(AOE CETC),Tianjin 300308,China;The First Aircraft Design Research Institute of Airplane Industry,Xi’an 710089,China)

机构地区：[1]中国电子科技集团公司光电研究院,天津300308 [2]航空工业第一飞机设计研究院,西安710089

出　　处：《光电技术应用》2018年第4期40-44,共5页Electro-Optic Technology Application

摘　　要：直流电机具有调速范围大、启动转矩大和易于启停等优点,特别适合用在调速要求高的场合。传统PI算法直流调速控制在负载变化情况下需要调整参数,难以自适应。针对此问题,设计了一种模糊自适应PI控制器,该控制器通过对误差及误差变化的识别进行模糊推理,实现对控制参数的在线整定,以达到优化控制的目的;同时,利用Matlab对实验数据进行了拟合。结果表明,模糊PI控制算法比传统PI控制算法能有效地改善系统的动态性能和稳态性能。Direct current(DC)motor has the advantages of large range speed regulation,large starting torque and easy to stop,especially suitable for high speed regulation requirements.Under the condition of load change,tra?ditional proportional-integral(PI)algorithm DC speed regulation control needs to adjust the parameters,which is dif?ficult to be adaptive.Aiming at this problem,a fuzzy adaptive PI controller is designed,which can perform fuzzy rea?soning by identifying errors and error changes to realize the online control parameters setting and the optimal con?trol.At the same time,Matlab is used to fit experimental data,the results show that the fuzzy PI control algorithm can much more effectively improve system dynamic and steady-state performances than the traditional PI control al?gorithm.

关 键 词：模糊控制 PI控制算法 双闭环控制 PWM控制 

分 类 号：TM76[电气工程—电力系统及自动化]