Cascade active disturbance rejection optimal control for microgravity active vibration isolation system

A well-designed space microgravity environment is an important guarantee of that microgravity science experiments could succeed. However, the actual microgravity acceleration level of spacecraft is far from ideal due to various disturbances. Considering the situation, a cascade Active Disturbance Rejection Control (ADRC) method is proposed to improve the performance of vibration isolation and position control. Simulation results demonstrates that the proposed method could improve the performance of vibration isolation and position control and optimize the control quantity of the system.