摘要
设计搭建了液压支架电液控制实验平台,并在此基础上对立柱的压力控制方法进行研究,提出了基于改进遗传算法优化的模糊PID立柱压力控制方法。使用正切赌轮法与自适应交叉变异概率方法对遗传算法进行改进,并将改进的遗传算法用于优化模糊PID的隶属函数,仿真结果表明该方法优于PID控制、模糊PID控制和模糊控制。测试实验结果表明:该方法调压性能良好,稳态误差小,平均响应速度达13.4 MPa/s,满足立柱压力控制要求。
A hydraul ic support experiment platform was designed and constructed, and the genetic algorithm （ GA） fuzzy-PID control method for column pressure was studied on this experiment platform. Moreover, the tangent roulette wheel selection and the adaptive probability of crossover and mutation were employed to enhance GA, the improved GA was used to tune membership functions of fuzzy-PID controller. The simulation results show that the proposed method is better than PID, fuzzy and fuzzy-PID. The test results show that the proposed method has good pressure regulating performance, small steady state error and the average response is 13.4 MPa/s, the requirements of column pressure control are met.
作者
梁斌
LIANG Bin(School of Xuhai, China University of Mining and Technology, Xuzhou Jiangsu 221116, China)
出处
《机床与液压》
北大核心
2017年第11期131-135,151,共6页
Machine Tool & Hydraulics
关键词
液压支架
实验平台
模糊PID
立柱压力控制
Hydraul ic support
Experiment plat form
Fuzzy PID
Column pressure control
