基于复合前馈补偿的混合磁悬浮CMG转子主动振动控制  

Active vibration control of an active-passive hybrid magnetically suspended rotor based on composite feedforward compensation method

作　　者：崔培玲[1,2] 盖玉欢[1,2] 李海涛[1,2] 

机构地区：[1]北京航空航天大学仪器科学与光电工程学院,北京100191 [2]北京航空航天大学惯性技术国家级重点实验室,北京100191

出　　处：《振动与冲击》2015年第22期161-166,共6页Journal of Vibration and Shock

基　　金：国家民用航天预研项目(61121003);国家自然科学基金(61203112)

摘　　要：为实现混合磁悬浮控制力矩陀螺转子高速旋转时产生与转速同频振动的主动控制,分析被动磁轴承径向平动自由度耦合磁力随转子径向扭转角的变化规律,提出基于复合前馈补偿的混合磁悬浮转子主动振动控制方法;在同频位移刚度力超前前馈补偿中考虑被动磁轴承径向耦合磁力影响,并在两径向通道之间补偿同频耦合电流刚度力。仿真结果表明,该方法可使同频轴承力减小至未补偿前的9.3%,从而验证该方法的有效性。When an active-passive hybrid magnetically suspended Control Moment Gyro （CMG） rotor rotates,synchronous vibrations will be caused.To achieve its active control,the coupling characteristics along with the change of the radial deflection angles between passive and active bearings were analyzed.On this basis,a composite feedforward compensation method for active vibration control of active-passive hybrid magnetically suspended rotor was proposed.The impact of coupling magnetic forces between active and passive bearings was taken into account in the process of lead feedforward compensation for displacement stiffness forces.And the coupling current stiffness forces were compensated between the two radial passages.The simulation results show that,the proposed method can reduce the synchronous bearing forces to 9 .3% of those without compensating the couplings.

关 键 词：混合磁悬浮转子 耦合磁力 主动振动控制 复合前馈补偿 

分 类 号：V448.22[航空宇航科学与技术—飞行器设计]