基于虚拟非线性动态负载补偿的摆动喷管高精度控制方法
By using a virtual nonlinear dynamic load compensation method, the problem of high-precision control of the oscillating nozzle under complex load environments was solved, enabling fast and accurate tracking of the oscillation angle command and improving the robustness and anti-disturbance of the servo system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANGHAI AEROSPACE CONTROL TECH INST
- Filing Date
- 2023-11-08
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional PID closed-loop control strategies have poor disturbance rejection and robustness under complex and nonlinear load environments of oscillating nozzles, making it impossible to achieve high-precision control and resulting in insufficient tracking accuracy of oscillation angle commands.
A virtual nonlinear dynamic load compensation method is adopted. By establishing a virtual nonlinear load model, an adaptive torque compensation nonlinear controller is designed. Combining Lyapunov stability theory and Barbalat lemma, global convergence of system error is achieved, thereby improving the robustness and anti-disturbance performance of the servo system.
It achieves high-precision control of the oscillating nozzle under complex load conditions, improves the load torque compensation accuracy and tracking accuracy of the servo system, and enhances the system's stability and anti-disturbance capability.
Smart Images
Figure CN117348416B_ABST