To avoid the complex modeling process of the system object and design the controllers for nonlinear systems fast and effectively, the design of the feedback controller of the nonlinear system draws lessons from the thinking of the virtual reference feedback tuning method. On this basis, in order to improve the system stability and eliminate the uncertain disturbance, adding a linear controller in the feedback loop can improve the tracking performance of the system, and the design is converted into the parameter identification of the nonlinear function under the expansion equation of a basis function. The simulation has verified the effectiveness of the proposed algorithm.
