气动位置伺服系统的非对称模糊PID控制  

Asymmetric fuzzy PID control for pneumatic position control system

作　　者：薛阳[1] 彭光正[1] 贺保国[1] 伍清河[1] 

机构地区：[1]北京理工大学自动控制系SMC技术中心,北京100081

出　　处：《控制理论与应用》2004年第1期129-133,共5页Control Theory & Applications

基　　金：国家自然科学基金项目(69904003);教育部博士点基金项目.

摘　　要：对于有杆气缸的非对称物理及摩擦力特性,提出了采用非对称模糊策略的模糊PID控制算法,较好地解决了有杆气缸由于左右两腔物理结构和摩擦力特性的不对称而造成运动过程中压力变化复杂的问题,改善了系统的动态响应性能.实验证明,采用非对称模糊策略的模糊PID控制可以明显地提高气动位置伺服系统的动态响应性能,系统具有较小的超调量和过渡过程时间,并获得了满意的重复稳态精度.For asymmetric physical structure and friction characteristic of single rod cylinder, a new fuzzy PID algorithm of asymmetric fuzzy strategy for pneumatic position control system was presented. It could effectively solve the difficult problems, which were mainly caused by asymmetric structure and different friction characteristics in two directions. The experimental results proved that, with this strategy, the dynamic performance of the system could be much improved. The system obtained desired percentage overshoot and repeatability in both transient and steady-state responses.

关 键 词：气动位置伺服系统 非对称模糊PID控制 动态响应性能 摩擦力特性 

分 类 号：TP273.4[自动化与计算机技术—检测技术与自动化装置]