【摘要】 提出了一种将模糊控制、滑模控制与自适应控制三者有机的整合的模糊滑模自适应控制的算法,并以虚拟轴机床的单通道的阀控非对称液压缸作为研究的对象。仿真实验表明,该算法可以使得系统输出渐进地收敛于参考的输入信号,且可以很快地对变化的信号进行有效地跟踪,对参数的摄动与有界的干扰具有不变性。提出的方法与传统的PID控制比较,更加的适用于较强的干扰的复杂系统、高阶的非线性,将方法应用于虚拟轴机床的液压的控制系统可以获得较高的控制精度、较好的机床动态性能与较小的稳态误差。更多还原

【Abstract】 A fuzzy control,sliding mode control and adaptive control of three organic integrated fuzzy sliding mode adaptive control algorithm as an object of study and virtual axis machine tools,single-channel asymmetric hydraulic cylinder valve control. Simulation results show that the algorithm can be progressively converge to the reference input signal,so that the system output and can quickly track changes signal interference parameter perturbation bounded invariant. Complex system of the proposed method compared with conventional PID control,more suitable for strong interference,high-end nonlinear method is applied to the virtual axis machine tool hydraulic control system can obtain a higher control accuracy,preferably machine dynamic performance and smaller steady-state error.更多还原