Open AccessIntegrated structure and precision control of flat voice coil actuator for non‐contact satellite
Author(s) -
Tang Zhongxing,
Xu Yufei,
Jiang Bin,
Liao He,
Zhao Yanbin
Publication year - 2019
Publication title -
the journal of engineering
Language(s) - English
Resource type - Journals
ISSN - 2051-3305
DOI - 10.1049/joe.2018.9382
Subject(s) - actuator , payload (computing) , control theory (sociology) , voice coil , compensation (psychology) , electromagnetic coil , computer science , displacement (psychology) , torque , satellite , eddy current , contact force , bandwidth (computing) , eddy current sensor , acoustics , engineering , physics , aerospace engineering , control (management) , electrical engineering , psychology , computer network , quantum mechanics , artificial intelligence , network packet , psychoanalysis , psychotherapist , thermodynamics
The disturbance caused by actuator is an important factor affecting the performance of the high‐precision payload, and a new actuator is urgently required for the non‐contact satellite. First, a flat voice coil actuator (VCA) with high precision and high bandwidth is proposed for the non‐contact ultra‐quiet satellite, and the principle of the eddy current sensor is analysed. Second, an optimised integrated structure is proposed with the flat actuator to output high‐precision forces and the eddy current sensor to measure the distance of the displacement. The mathematical model of the VCA is established, and the precision of output force is studied. Third, the attitude control using six actuators in Stewart configuration is discussed, and the compensation method of unbalanced torque is provided. Finally, physical test is taken on the principle prototype, and numerical simulations are implemented to verify the effectiveness of the integrated structure and the control methodology.