模糊滑模变结构控制在伺服系统中的应用

Servo with Sliding Mode Variable Structure Fuzzy Control

继电器型变结构控制是伺服电机中普遍采用的控制方式 ,但由于位置滞后和惯性的存在 ,总会伴随着抖动现象。文章分析产生抖动的原因 ,并在此基础上提出了改善伺服电机继电器的模糊控制策略 ,在继电器空间滞后区改变控制作用时间的大小 ,在靠近平衡点附近引入自由运动。

Relay variable-structure control is broadly used i n servo, control system always exists vibration for place delay and inertia. This paper analyzes the reason of vibration, and brings forward fuzzy control scheme , changes the time of control action in the place delay zone, when reaching the balance point, system will be freedom movement. Theory analysis and simulation o utcome all prove that control arithmetic is right.