Application of Non-linear Internal Model Control Based on Dynamic Compensation Inverse in Robot
HAO Xiao-hong1,GENG Liang1,MA Yuan-yuan2,ZHAO Zhen-nan2 (1.College of Electrical and Information Engineering, Lanzhou University of Technology, Lanzhou 730050, China; 2.SDIC Gansu Three Gorges Power Generation Company, Lanzhou 730050, China) Abstract:Aiming at a method of robot control system for the robot’s non-linear uncertain systems and the traditional non-linear internal model control in the control deficiencies, this paper introduced a based on dynamic compensation inverse of radial basis function (RBF) internal model control for nonlinear uncertain systems method. At the same time, in the introduction of RBF to establish the inverse model, there is model free adaptive control (MFAC) method as an additional controller. Both forward and backward models will be automatically modified online when they deviate from the plant. The simulation results show that the method proposed in this paper not only to the robot’s constant perturbation system has good robustness of time-varying uncertainties remain better tracking results, with better real-time performance, robustness, and online calibration. Key words:model free adaptive control(MFAC);dynamic compensation;inverse system method; internal model control |