基于模型的舵机非线性因素补偿控制研究

摘要

To restrain the influences of the nonlinearities on missile servo control system,the nonlin-earities are studied and analyzed,and the simulation models of the nonlinearities are established.Integra-ting the nonlinear model with the servo control system simulation model,the model-based adaptive com-pensation algorithm is studied,and the adaptive control strategy besed on the model is realized.An adap-tive controller for on-line estimation and compensation of nonlinear and disturbance factor model parame-ters is designed.The simulation resules show that the algorithm can improve the steady-state precision,o-vershoot,phase shift and stability of the servo control system.%为了抑制非线性因素对导弹舵机性能的影响,本文对电动舵机中的非线性因素进行研究分析,建立相关的非线性因素模型,并将非线性模型与舵机控制系统模型综合,同时对基于模型的自适应补偿舵机控制算法进行研究,实现了依赖于模型的自适应控制策略,设计了可以实现对非线性和扰动因素模型参数在线估计并进行补偿的自适应控制器,仿真结果表明该算法对舵机控制系统的稳态精度、超调量、相移、稳定性等有较大改善.