摘要
音圈电机具有动态响应快、精度高等一系列优点,近年来,音圈电机被广泛应用在高性能的直接驱动式伺服阀领域里。分析了音圈电机的数学模型并设计了基于音圈电机的直驱阀阀芯位置控制系统。针对直驱阀存在负载扰动的影响,提出了一种基于BP神经网络PID的位置控制策略,它既有神经网络控制良好的动态特性又保持了PID控制的高速稳定性,并且能在线调整。仿真结果表明,所提出的基于BP神经网络PID的位置控制策略能够实现系统的良好控制性能,具有很好的鲁棒性。
Voice coil motor（VCM） has faster transient response,higher accuracy,it is widely used in the field of high performance direct drive servo valve.The mathematic model of voice coil motor was analyzed and the position control system of direct driver valve that based on voice coil motor was designed.Against the disturbance in the system,a new position control strategy that BP neural network composed with PID controller was put forward,it inherits the excellent dynamic characteristics of NN technique and the high speed stability of PID at the same time,it can also realize the online update.The emulated results prove the control strategy is very meaningful to improve the system performance,and can obtain better result and robustness.
出处
《电气传动》
北大核心
2010年第6期46-49,共4页
Electric Drive
基金
科技部国家科技支撑计划(2006BAF01B10-01)
