Research on Torque Compensation Control on Airborne Antenna Pedestal Based on Dynamics Model
With the continuous improvement of aircraft performance,the airborne radar servo system needs to overcome the torque disturbance caused by the unbalanced heavy load during the large maneuvering flight of the aircraft to ensure the servo tracking accuracy.Taking the three-axis orthogonal series configuration of the radar antenna pedestal as an example and borrowing the experience of force-free control strategy of the serial robot,various disturbance torques received by each axis of the antenna pedestal during the large maneuvering of the aircraft are estimated based on the carrier posture information combined with dynamics analysis and real-time feed-forward compensation to the current loop is performed.Hardware-in-the loop(HWIL)simulation and experiments have proved that the anti-disturbance ability of the servo system has been effectively improved.
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