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通过对单框架控制力矩陀螺(single gimbal control moment gyroscope,SGCMG)框架伺服系统的性能要求,归纳了影响框架转速性能的扰动因素,并分析了其对框架转速性能的影响;深入分析了轴承摩擦力矩、动量轮转子不平衡等主要扰动因素的影响,并用前馈补偿法降低摩擦力矩对系统响应时间的影响、用频域法分析了实际系统对转子不平衡量干扰的衰减程度,为转子动平衡设计提供理论依据。最后,对框架系统的相关性能指标进行了仿真验证,实现了控制力矩陀螺的高精度框架控制。
According to the performance requirements of single gimbal control moment gyroscope (SGCMG) frame servo system, the disturbance factors that affect the speed performance of the frame are summed up, and the influence on the speed performance of the frame is analyzed. The friction moment , Rotor imbalance and other major disturbance factors, and the use of feedforward compensation method to reduce the impact of friction torque on the system response time, the frequency domain method to analyze the actual system of rotor unbalance disturbance attenuation degree of rotor balancing design Provide a theoretical basis. Finally, the related performance indexes of the frame system are simulated and verified, and the high-precision frame control of the control moment gyroscope is realized.