舵机加载系统H_∞控制的研究

Research of H_∞ control in steering gear load system

该文从理论上分析了舵机加载系统存在多余力的特点及其对加载系统控制性能的影响 ,建立了准确的数学模型 ,并将多余力作为系统的外干扰设计了舵机加载系统的H∞ 控制器。分析与仿真结果表明 ,H∞ 控制器对补偿加载系统多余力有很好的效果 ,可以大大地提高加载系统的鲁棒性和跟踪性能 。

The article analysis the characteristics and effect of redundant force in steering gear load system,builds exact mathematic model,and designs a H ∞ controller of the system by treating redundant force as exoteric disturbance,Analysis and simulation results show that H ∞ controller can be effective to compensate redundant force of load system,greatly improve the performance of robust and trace,and ideally depress redundant force of steering gear load system.