滑模变结构控制在惯性平台稳定回路中的应用

为了与新型高精度惯性平台相匹配,解决传统PID控制的稳定回路抗干扰性能不高的问题,设计了滑模变结构控制器.滑模变结构控制器的主要特点是:当系统状态穿越状态空间的不同区域时,反馈控制器的结构按照一定的规律发生变化,使得控制器对系统的内在参数变化和外在扰动等因素具有较强的鲁棒性,从而保证系统能够达到期望的性能指标要求.MATLAB仿真结果表明,滑模变结构控制器在很多指标上均优于传统PID控制器,特别表现在超调量,动态性能以及对干扰的抑制能力方面,是平台系统的理想控制器.

Sliding Mode Variable Structure Control in the Stabilization Loop of Inertial Platform

In order to adapt to late-model high-precision inertial platform and resolve a problem which traditional PID control for stabilization loop of inertial platform has low capacity of anti-jamming,some work are done in design of sliding mode variable structure control.Its main character is that:when the state of the system goes through the different areas of the state space,the structure of the feedback controller changes as some law.Thus,the system is robust to the inner parameter variation and outer environm...