柔性支撑控制力矩陀螺动力学建模与控制

doi:10.3969/j.issn.1674-1579.2021.01.006

Abstract

Abstract: To solve the problem of gimbal control performance decreasing caused by flexible support disturbance in control moment gyroscope (CMG), a dynamic model of single gimbal control moment gyroscope (SGCMG) with flexible support is estabished, the coupling mechanism of the disturbance with the influence of flexible support is analyzed and the analytical model is given. Based on modeling and analysis, an integral sliding mode control strategy is adopted to achieve strong robustness to gimbal dynamics changes and new disturbance torque. Simulation results show that the proposed control strategy realizes better dynamic process and steadystate performance comparing with PID control strategy, and improves the closedloop control performance of control moment gyro gimbal system under flexible support.

Key words: CMG, flexible support, dynamic model, sliding mode control

CLC Number:

TP273

LU Ming, LIANG Zhulin, XU Zhangfan. Dynamic Modeling and Control of Flexible Support Control Moment Gyroscope[J].Aerospace Contrd and Application, 2021, 47(1): 40-46.

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URL: http://journal01.magtech.org.cn/Jwk3_kjkzjs/EN/10.3969/j.issn.1674-1579.2021.01.006

http://journal01.magtech.org.cn/Jwk3_kjkzjs/EN/Y2021/V47/I1/40

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Dynamic Modeling and Control of Flexible Support Control Moment Gyroscope

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