论文部分内容阅读
针对传统积分型滑模面容易产生积分饱和从而导致超调量大的缺点,在Seshagiri和Khalil设计的条件积分型滑模面的基础上,提出了一种改进积分型滑模面,其可以根据系统的状态通过调节因子对积分项进行削弱来防止积分饱和。同时对调节因子的取值范围进行了讨论。并将改进积分型滑模面应用到导弹的俯仰角速度跟踪滑模控制器设计中,对舵机输出受到干扰的情况进行了仿真。理论分析和仿真研究表明,改进积分型滑模面形式简单,便于工程实现,在其基础上设计的滑模控制器在受到类似脉冲干扰的情况下几乎没有超调和具有较短的调节时间。
Aiming at the shortcomings that traditional integral sliding mode surfaces easily lead to integral saturation, which leads to large overshoot, based on the conditional integral sliding mode surfaces designed by Seshagiri and Khalil, an improved integral sliding mode surface is proposed based on The state of the system prevents the integral from saturating by reducing the integral term by a modulation factor. At the same time, the range of adjustment factor is discussed. And the improved integral sliding mode is applied to the design of pitch velocity tracking sliding mode controller of the missile, and the output of the steering gear is disturbed. The theoretical analysis and simulation results show that the improved integral sliding mode surface is simple in form and easy to realize in engineering. The sliding mode controller designed on the basis of it has almost no overshoot and short adjustment time under similar pulse interference.