振动与冲击
振動與遲擊
진동여충격
Journal of Vibration and Shock
2015年
22期
161-166
,共6页
混合磁悬浮转子%耦合磁力%主动振动控制%复合前馈补偿
混閤磁懸浮轉子%耦閤磁力%主動振動控製%複閤前饋補償
혼합자현부전자%우합자력%주동진동공제%복합전궤보상
active-passive hybrid magnetically suspended rotor%coupling magnetic forces%active vibration control%composite feedforward compensation
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。
為實現混閤磁懸浮控製力矩陀螺轉子高速鏇轉時產生與轉速同頻振動的主動控製,分析被動磁軸承徑嚮平動自由度耦閤磁力隨轉子徑嚮扭轉角的變化規律,提齣基于複閤前饋補償的混閤磁懸浮轉子主動振動控製方法;在同頻位移剛度力超前前饋補償中攷慮被動磁軸承徑嚮耦閤磁力影響,併在兩徑嚮通道之間補償同頻耦閤電流剛度力。倣真結果錶明,該方法可使同頻軸承力減小至未補償前的9.3%,從而驗證該方法的有效性。
위실현혼합자현부공제력구타라전자고속선전시산생여전속동빈진동적주동공제,분석피동자축승경향평동자유도우합자력수전자경향뉴전각적변화규률,제출기우복합전궤보상적혼합자현부전자주동진동공제방법;재동빈위이강도력초전전궤보상중고필피동자축승경향우합자력영향,병재량경향통도지간보상동빈우합전류강도력。방진결과표명,해방법가사동빈축승력감소지미보상전적9.3%,종이험증해방법적유효성。
Whenanactive-passivehybridmagneticallysuspendedControlMomentGyro(CMG)rotorrotates, 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.