滑模变结构控制及在电动舵系统中的应用研究

针对导弹电动舵系统的精确控制问题，在建立系统非线性数学模型的基础上，设计了一种基于趋近率的滑模变结构控制（VSC）算法。通过连续化控制量较好的消除了系统抖振，根据上下界的原理对外部干扰和不确定的影响性进行补偿，从而提高了算法的鲁棒性和非线性处理能力。通过对典型导弹电动舵系统仿真，结果表明，在电动舵系统受内部参数摄动和外部非线性干扰的工况下，利用该方法设计的控制器，能实现快速、准确、无超调地跟踪给定信号。

A research of variable structure control and its application to electromechanical actuator system

To control the electromechanical actuator system precisely, based on the nonlinear mathematical model, the variable structure control algorithm is designed using the reaching law approach. The proposed algorithm eliminates chattering effectively by continuous control parameters, by the way of compensates the disturbance and uncertainty based on bounded theory, the ability of overcome nonlinear and robustness is improved. The simulation results shows that the controller designed by the proposed algorithm can...