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1.发明公开Method and apparatus for vibration reduction/control in a variable reluctance linear motor 有权对于以线性磁阻电动机控制和振动的抑制方法和装置
公开(公告)号：EP0961392A2
公开(公告)日：1999-12-01
申请号：EP99302535.2
申请日：1999-03-31
发明人： Bessette, Steven C. , Coots, Charles A. , York, James E. ,
摘要： A variable reluctance linear motor has a stator and an armature mounted so as to be movable along the length of the stator. Armature bearings are mounted to the armature via mechanical vibration dampers and contact the stator so that vibrations in the stator are transmitted to the bearings and dissipated in said vibration dampers. A sensor is mounted to the armature for obtaining position data for the armature with respect to the stator. A controller then calculates the phase currents for the motor phases based on the position data and a desired force value. The phase currents are calculated to maintain a minimum normal force between the armature and said stator, thereby further reducing vibrations. A conditional filter is applied when armature is within a predetermined distance from a desired location. The conditional filter, after a time delay, clamps the velocity feedback to a predetermined range and simultaneously reduces the velocity loop gain.
摘要翻译： 可变磁阻线性电机具有定子和安装成可沿定子的长度可移动的电枢。 电枢轴承被安装到通过机械振动阻尼器的衔铁和接触定子所以没有在定子振动是反式mitted至轴承并且在所述振动阻尼器消散。 传感器被安装到所述电枢用于获得位置数据电枢相对于定子。 控制器随后计算用于基于所述位置数据和期望的力值电机各相的相电流。 相电流计算，以保持电枢和所述定子之间的最小的法向力，从而降低了进一步的振动。 有条件滤波器应用于当电枢是从所希望的位置的预定距离内。 条件过滤器，一个时间延迟之后，夹具速度反馈到预定的范围，并同时减少速度环路增益。
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2.发明公开Method and apparatus for vibration reduction/control in a variable reluctance linear motor 有权对于以线性磁阻电动机控制和振动的抑制方法和装置
公开(公告)号：EP0961392A3
公开(公告)日：2000-08-30
申请号：EP99302535.2
申请日：1999-03-31
发明人： Bessette, Steven C. , Coots, Charles A. , York, James E. ,
摘要： A variable reluctance linear motor has a stator and an armature mounted so as to be movable along the length of the stator. Armature bearings are mounted to the armature via mechanical vibration dampers and contact the stator so that vibrations in the stator are transmitted to the bearings and dissipated in said vibration dampers. A sensor is mounted to the armature for obtaining position data for the armature with respect to the stator. A controller then calculates the phase currents for the motor phases based on the position data and a desired force value. The phase currents are calculated to maintain a minimum normal force between the armature and said stator, thereby further reducing vibrations. A conditional filter is applied when armature is within a predetermined distance from a desired location. The conditional filter, after a time delay, clamps the velocity feedback to a predetermined range and simultaneously reduces the velocity loop gain.
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公开(公告)号：EP0547938A1
公开(公告)日：1993-06-23
申请号：EP92403279.0
申请日：1992-12-04
发明人： York, James E.
CPC分类号： B23P19/001 , B23Q11/0032 , F16F15/02 , G05B19/19 , G05B2219/41195
摘要： An electronic damping system is disclosed which dampens mechanical resonant vibrations of a gantry beam end (16). The system includes a secondary velocity feedback loop in addition to the main servo motor-tach velocity loop. The resonant velocity of the beam (16) is sensed from the movement of the end of the beam (16). The velocity feedback signal (22) is summed (29) as negative feedback with the velocity command signal (30) from the position controller (28). The resultant sum of the signals are combined to form the velocity reference input command signal (32) to a servo power amplifier (34). The servo power amplifier (34) is connected to a main servo motor (42) which controls the movement of the gantry beam (16) in the Y-direction relative to printed circuit board (20).
摘要翻译： 公开了一种减振龙门梁端部（16）的机械共振振动的电子阻尼系统。 该系统除了主伺服马达 - 速度回路外还包括二次速度反馈回路。 从光束（16）的端部的移动来感测光束（16）的共振速度。 将速度反馈信号（22）与来自位置控制器（28）的速度指令信号（30）相加（29）作为负反馈。 合成信号的总和，以形成速度参考输入指令信号（32）到伺服功率放大器（34）。 伺服功率放大器34连接到控制台架梁（16）相对于印刷电路板（20）在Y方向上移动的主伺服电机（42）。
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4.发明授权Method and apparatus for vibration reduction/control in a variable reluctance linear motor 有权对于以线性磁阻电动机控制和振动的抑制方法和装置
公开(公告)号：EP0961392B1
公开(公告)日：2005-06-08
申请号：EP99302535.2
申请日：1999-03-31
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公开(公告)号：EP0547938B1
公开(公告)日：1996-11-20
申请号：EP92403279.0
申请日：1992-12-04
发明人： York, James E.
CPC分类号： B23P19/001 , B23Q11/0032 , F16F15/02 , G05B19/19 , G05B2219/41195
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