Adaptive practical-nonovershooting control for uncertain nonlinear systems with applications in DC servo motor

This paper addresses the problem of nonovershooting tracking control for DC motor systems with uncertain parameters. Firstly, a practical-nonovershooting tracking control algorithm is designed for the n -order nonlinear uncertain systems based on adaptive dynamic surface control and backstepping. Then, it is theoretically analyzed that all the signals of the closed-loop system of the nonlinear system are semi-globally uniformly ultimately bounded. At the same time, the overshoot of the system is controlled by the control algorithm, that is, the overshoot of the system can be arbitrarily reduced by adjusting the control parameters. Finally, the algorithm is applied to the DC motor system with uncertain parameters, and the problem of nonovershooting tracking control of the system is solved. Compared with the existing results, the algorithm in this paper can make the overshoot of the system smaller and converge faster.