基于直驱阀的双闭环模糊自适应PID控制及其在异形销孔精密镗孔中的应用  

Double Closed-Loop Fuzzy Adaptive PID Control Based on Direct-Drive Valve and Its Application in the Precision Boring of Non-cylinder Pin Holes

作　　者：李岩 刘建伟 刘鹏 LI Yan;LIU Jianwei;LIU Peng(Haiwei Intelligent Industry Development Center,713 Research Institute of China State Shipbuilding Corporation Limited,Zhengzhou Henan 450015,China)

机构地区：[1]中国船舶集团有限公司第七一三研究所,海为智能产业发展中心,河南郑州450015

出　　处：《机床与液压》2025年第7期95-104,共10页Machine Tool & Hydraulics

摘　　要：针对异形销孔的精密镗削加工,研究高频响音圈电机直接驱动伺服阀(VCM-DDV)在精密镗削装置中的应用,提出一种基于干扰观测器的双闭环模糊自适应PID(FPID)控制策略。该控制策略包括基于FPID的阀芯位置控制和基于干扰观测器的输出压力控制。建立基于AMESim和Simulink的联合仿真环境,对系统进行仿真研究。仿真结果表明:采用模糊控制和干扰观测器相结合的两级反馈算法,提高了液压伺服系统在动载荷作用下的位置和压力性能,阶跃响应时间在21.2 ms内。在此基础上进行了异形销孔镗孔实验,实验结果表明:圆度达0.3μm,粗糙度达0.15μm,满足加工精度要求,验证了补偿方法的正确性。For the boring machining of the non-cylinder pin hole,the application of high-frequency voice coil motor directly driven servo valve(VCM-DDV)in precision boring equipment was studied,and a dual closed-loop fuzzy adaptive PID(FPID)control strategy based on disturbance observer was proposed.This control strategy included FPID based spool position control and disturbance observer based output pressure control.A joint simulation environment based on AMESim and Simulink was established to conduct simulation research on the system.The simulation results show that the two-stage feedback algorithm combining fuzzy control and disturbance observer improves the position and pressure performance of the hydraulic servo system under dynamic load,with a step response time within 21.2 ms.On this basis,experiments were conducted on the boring of irregular pin holes.The experimental results show that the roundness reaches 0.3μm and the roughness reaches 0.15μm,meeting the requirements of machining accuracy and verifying the correctness of the compensation method.

关 键 词：异形销孔 直驱阀 FPID 两级闭环控制 干扰观测器 

分 类 号：TH137.7[机械工程—机械制造及自动化]