黄敏,胡晓伟,李世佳.EMA伺服控制系统研究[J].民用飞机设计与研究,2019,(4):31-35
EMA伺服控制系统研究
  
DOI:10.19416/j.cnki.1674-9804.2019.04.005
中文关键词:机电作动器  径向基神经网络  永磁同步电机  闭环控制
英文关键词:electro-mechanical actuator  radial basis function neural network  permanent magnet synchronous motor  closed-loop control
基金项目:
作者单位
黄敏,胡晓伟,李世佳 上海飞机设计研究院上海 201210 
中文摘要:机电作动器(EMA)作为先进飞机的主要作动系统有着体积小、效率高、重量轻的优势,是未来航空作动器的主要发展方向。在介绍EMA的工作原理之后建立了EMA的机械传动机构与永磁同步电机(PMSM)的非线性模型,构建了含有电压前馈的三闭环EMA控制系统。考虑到机械传动系统对EMA位置环的影响,针对位置环构建了基于径向基(RBF)神经网络的PID控制器,将其与EMA三闭环PI控制系统进行仿真并比较控制结果,结果显示RBFPID控制器的控制精度与响应速率得到明显提高。
英文摘要:Electro-Mechanical Actuator (EMA), as the main actuating system of advanced aircraft, has the advantages of small size, high efficiency and light weight. It is main development direction of future aviation actuator. Firstly, the working principle of EMA was introduced, the non-linear model of mechanical transmission structure and permanent magnet synchronous motor was established, and a three-loop EMA control system with voltage feed-forward was constructed. Then, considering the influence of mechanical transmission system on EMA position loop, a radial basis function (RBF) neural network PID controller was constructed for position loop by using the identification ability of neural network. The results show that the control accuracy and response rate have been improved obviously.
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