非线性自抗扰状态PI控制器的研究

DESIGN OF NONLINEAR AUTO DISTURBANCE REJECTION STATE PI CONTROLLER

针对线性状态PI控制器只适用于单输入单输出的线性系统的不足 ,提出了非线性自抗扰状态PI控制方法 ,将“自抗扰”控制技术的控制思想应用于常规状态PI控制 ,使其适用于单输入单输出的非线性系统的控制。解决了“自抗扰”控制技术中扩张状态观测器的参数问题 ,并对系统的稳定性进行了定性分析。仿真算例表明 。

A nonlinear auto disturbance rejection state PI controller (NLASPIC) is developed with the auto disturbance rejection control technology to overcome the shortcomings of the linear state PI (LSPI). The problem about the parameters in the design of the external state observer (ESO) is overcome, and the stability of the system is analyzed. The simulation example given suggests that the NLASPIC has an excellent adaptability and a strong robust to the object's model and disturbance.