Variable Gain Servo Control Algorithm to Suppress the Resonance of Vernier Rocket Engine
The supporting/matching electro-hydraulic servo mechanism of the current vernier rocket engine has the characteristics of highly integrated structure and large swing angle stroke.The thrust control system formed by it and the engine had a large nonlinear,and the traditional control method is prone to divergence and jitter at large angles.In order to solve the above problems,meet the rocket's requirement of the speed of easy jitter,and puts forward the compound digital control method of variable gain PID and trap function compensation.The simulation and experimental results show that the control method can effectively suppress the influence of nonlinear factors of electro-hydraulic servo mechanism on the system stability,and the minimum stability margin is increased by 5～7 dB.
万方数据
维普
