公开(公告)号：US09291197B2

公开(公告)日：2016-03-22

申请号：US14118742

申请日：2012-04-25

Applicant: Rolf Vollmer

Inventor： Rolf Vollmer

IPC: H02K7/09 ,  F16C32/04

CPC classification number: F16C32/0463 ,  F16C32/0444 ,  F16C32/0453 ,  F16C32/0457 ,  F16C32/0461 ,  F16C32/048 ,  F16C2300/02

Abstract: A magnetic radial bearing with low eddy current losses is made compact and easily actuable. For this purpose, a radial bearing with four coils (S1, S2, S3, S4) is proposed, said coils lying opposite one another in pairs on two axes (X, Y). The coils are controlled by a three-phase current (U, V and W). The amplitudes of the currents of the phases (U, V and W) are each evaluated using a sine function which is phase-shifted with respect to one another through 120 DEG. The control is performed by a control device at a variable operating point, which fixes the value for the evaluation of the amplitudes for the individual phases corresponding to the respective sine function.

Abstract translation: 具有低涡流损耗的磁径向轴承紧凑且易于致动。 为此，提出了具有四个线圈（S1，S2，S3，S4）的径向轴承，所述线圈在两个轴线（X，Y）上成对地相对置。 线圈由三相电流（U，V和W）控制。 相位（U，V和W）的电流的幅度各自使用相对于120度相移的正弦函数进行评估。 该控制由可变工作点处的控制装置执行，该可变工作点固定用于评估对应于各个正弦函数的各个相位的振幅的值。

公开(公告)号：US20140265689A1

公开(公告)日：2014-09-18

申请号：US13831213

申请日：2013-03-14

Applicant: Alexei Filatov

Inventor： Alexei Filatov

IPC: H02K7/09

CPC classification number: F16C32/048 ,  F16C32/0414 ,  F16C32/0463 ,  F16C32/0465

Abstract: An electromagnetic actuator can exert a radial electromagnetic force on a body that is configured to rotate about a rotational axis. The actuator includes a radial control magnetic pole assembly that includes radial control poles adjacent to and spaced apart by air gaps from the body. The actuator includes a permanent magnet (PM) magnetized along the axis, having one pole in contact with an axial face of the assembly and located proximate to a lateral surface of the body. The PM is magnetically coupled to the body in a non-contact manner resulting in a bias magnetic flux in the air gaps. The actuator includes a control coil around the radial control poles located radially outwards from the PM. Electrical current in the coils generates control magnetic flux in air gaps. The non-uniform net magnetic flux distribution around the body results in a radial electromagnetic force exerted on the body.

Abstract translation: 电磁致动器可以在构造成围绕旋转轴线旋转的主体上施加径向电磁力。 致动器包括径向控制磁极组件，其包括与身体的气隙相邻并间隔开的径向控制极。 致动器包括沿轴线磁化的永磁体（PM），其具有与组件的轴向面接触并且位于主体的侧表面附近的一个极。 PM以非接触方式磁耦合到主体，导致气隙中的偏置磁通量。 致动器包括位于从PM径向向外定位的径向控制极周围的控制线圈。 线圈中的电流在气隙中产生控制磁通。 身体周围的不均匀净磁通分布导致施加在身体上的径向电磁力。

公开(公告)号：US07944104B2

公开(公告)日：2011-05-17

申请号：US12359120

申请日：2009-01-23

Applicant: Toshimitsu Barada ,  Toshiya Yoshida

Inventor： Toshimitsu Barada ,  Toshiya Yoshida

IPC: F16C32/04

CPC classification number: F16C32/0448 ,  F16C32/0457 ,  F16C32/0463 ,  F16C2360/45

Abstract: A magnetic bearing apparatus supports a rotating object using magnetic levitation by a magnetic force of electromagnets. The magnetic bearing apparatus includes a PWM driver configured to supply exciting currents to the electromagnets, a driver power source configured to drive the PWM driver, and a displacement error signal removing section configured to extract a displacement error signal of the displacement information from a current flowing through the driver power source and to remove the displacement error signal from the displacement information.

Abstract translation: 磁性轴承装置通过电磁铁的磁力使用磁悬浮来支撑旋转物体。 磁轴承装置包括：PWM驱动器，被配置为向电磁体提供励磁电流;驱动器电源，被配置为驱动PWM驱动器;以及位移误差信号去除部，被配置为从流动的电流中提取位移信息的位移误差信号 通过驱动器电源并从位移信息中去除位移误差信号。

公开(公告)号：US20100013332A1

公开(公告)日：2010-01-21

申请号：US12505882

申请日：2009-07-20

Applicant: ROLF VOLLMER

Inventor： ROLF VOLLMER

IPC: H02K7/09

CPC classification number: F16C32/0463 ,  F16C32/0457 ,  F16C32/048 ,  H02K7/09

Abstract: A magnetic radial bearing and a bearing system for supporting a rotating shaft are disclosed. The bearing has a number of electromagnets circumferentially arranged around a rotating shaft. Each of the electromagnets has a coil which is electrically connected so as to generate both a magnetic bias and a rotating three-phase field. First terminals of opposing coils are connected in common to a corresponding phase of a three-phase controller for generating the rotating field, whereas second terminals of the coils not connected to the same phase are connected at corresponding star points. The star points are connected to DC power for generating the magnetic bias.

Abstract translation: 公开了用于支撑旋转轴的磁径向轴承和轴承系统。 轴承具有围绕旋转轴周向布置的多个电磁体。 每个电磁体具有电连接的线圈，以便产生磁偏置和旋转三相场。 相对线圈的第一端子共同连接到用于产生旋转场的三相控制器的相应相位，而不连接到相位的线圈的第二端子连接在相应的星形点。 星点连接到直流电源以产生磁偏置。

公开(公告)号：US20070216244A1

公开(公告)日：2007-09-20

申请号：US11587348

申请日：2005-04-22

Applicant: Jonathan Edelson

Inventor： Jonathan Edelson

IPC: H02K11/00 ,  H02K7/09 ,  H02K3/00

CPC classification number: F16C32/0461 ,  F16C32/0463 ,  F16C32/0497 ,  H02K3/28 ,  H02K7/09 ,  H02K17/16

Abstract: The present invention relates to the use of stator windings of an induction machine to provide both rotation of the rotor and active rotor positioning within the stator frame by modification of the magnetizing current component in the D-Q plane of the rotor applied transformed to the AC waveform current of the stator windings according to an X-Y direction describing a rotor repositioning requirement.

Abstract translation: 感应电机的定子绕组的使用本发明涉及感应电机的定子绕组的使用，通过修改转子施加的转子的DQ平面中的磁化电流分量来改变定子框架内的转子和主动转子的位置，使其转换成AC波形电流 的定子绕组根据描述转子重新定位要求的XY方向。

公开(公告)号：US06365996B2

公开(公告)日：2002-04-02

申请号：US09011604

申请日：1998-02-10

Applicant: Reto Schöb

Inventor： Reto Schöb

IPC: F16C3906

CPC classification number: F16C32/0463 ,  F16C32/0457 ,  F16C32/0476 ,  F16C32/048 ,  F16C32/0487 ,  H02K7/09

Abstract: A radial, active magnetic bearing apparatus comprising at least three electromagnets which are distributedly arranged is excited by a three-phase rotary current controller.

Abstract translation: 包括分布布置的至少三个电磁体的径向主动磁轴承装置由三相旋转电流控制器激励。

公开(公告)号：US6130494A

公开(公告)日：2000-10-10

申请号：US11660

申请日：1998-02-12

Applicant: Reto Schob

Inventor： Reto Schob

IPC: F16C39/06 ,  H02K7/09

CPC classification number: F16C32/0463 ,  F16C32/0493 ,  H02K7/09

Abstract: The invention relates to an apparatus for the contact-free journalling of a rotor by rotary field machine stators. The rotary field machine stators are magnetically coupled, on the one hand, via the rotor of ferromagnetic material and, on the other hand, via a flux conduction ring of a ferromagnetic material and/or a housing of a ferromagnetic material. The radial magnetic bearing forces in the rotary field machine stators are produced in that means are present in the arrangement which produce magnetic unipolar fluxes flowing through the rotary field machine stators. Two-pole control fluxes are superimposed on the unipolar fluxes in the rotary field machine stators, and the control fluxes are controlled by the currents in two-pole rotary field windings. The position of the rotor is measured by position sensors. A control apparatus calculates the required phase currents as a result of the position signals and feeds the rotary field windings in such a manner that the rotor is held in suspension.

Abstract translation: PCT No.PCT / CH96 / 00286 Sec。 371日期1998年2月12日 102（e）1998年2月12日PCT PCT 1996年8月19日PCT公布。 公开号WO97 / 07340 日期：1997年2月27日本发明涉及一种旋转磁场定子对转子无接触轴颈的装置。 旋转磁场定子一方面通过铁磁材料的转子磁耦合，另一方面通过铁磁材料的磁通传导环和/或铁磁材料的壳体磁耦合。 在旋转磁场机定子中的径向磁轴承力产生在这样的装置中，该装置产生流过旋转磁力机定子的磁性单极磁通。 两极控制通量叠加在旋转磁场定子中的单极通量上，控制通量由两极旋转励磁绕组中的电流控制。 转子的位置由位置传感器测量。 控制装置作为位置信号的结果来计算所需的相电流，并以使转子保持悬架的方式馈送旋转磁场绕组。

公开(公告)号：US5319273A

公开(公告)日：1994-06-07

申请号：US967251

申请日：1992-10-26

Applicant: Richard L. Hockney ,  James R. Downer ,  David B. Eisenhaure

Inventor： Richard L. Hockney ,  James R. Downer ,  David B. Eisenhaure

IPC: F04D29/04 ,  F04D29/058 ,  F16C39/06 ,  H02K7/09 ,  G05D23/275

CPC classification number: F04D29/058 ,  F16C32/0457 ,  F16C32/0463 ,  F16C32/048 ,  H02K7/09 ,  F16C2360/44 ,  F16C32/0444

Abstract: A fixed gain electromagnetic actuator for controlling the position of a body including at least two pair of a magnetically permeable pole spaced from the body, bias coils about each pole, separate control coils about each pole, a bias source for the bias coils providing a current in the bias coils producing a steady-state equal strength magnetic field on opposing sides of a body, and a control source for the control coils providing a current in the control coils for producing an increase in the magnetic field on one side of the body and a corresponding equivalent decrease in the magnetic field on the opposing side of the body to compensate for any external upsetting forces acting on the body.

Abstract translation: 一种固定增益电磁致动器，用于控制主体的位置，该主体包括至少两对与本体间隔开的导磁柱，围绕每个极偏置线圈，围绕每个极分开控制线圈，用于偏置线圈的偏置源提供电流 偏置线圈在主体的相对侧产生稳态等强度磁场，以及用于控制线圈的控制源，用于在控制线圈中提供电流，用于增加主体一侧的磁场， 在体的相对侧上的磁场的相应的相应的减小以补偿作用在身体上的任何外部镦锻力。

公开(公告)号：US09531236B2

公开(公告)日：2016-12-27

申请号：US13486194

申请日：2012-06-01

Applicant: Alexei Filatov

Inventor： Alexei Filatov

IPC: H02K7/09 ,  F16C32/04

CPC classification number: H02K7/09 ,  F16C32/0463

Abstract: Systems, methods, and devices for generating electromagnetic forces may involve generating an axial control magnetic flux in an axial control magnetic circuit comprising a first axial pole, a second axial pole, and an axial actuator target, the axial actuator target coupled to a body having a rotational axis. A radial control flux can be generated in a radial control magnetic circuit comprising a first radial pole, a second radial pole, and a radial actuator target. An electrical compensation current can be applied to an electrical bias flux leveling coil to cancel or nearly cancel any changes of the magnetic flux leaking from either the first or the second axial poles into the radial poles, electrical bias flux leveling coil wound around the rotational axis and located axially between the radial poles and the closest of the first or the second axial poles.

Abstract translation: 用于产生电磁力的系统，方法和装置可以涉及在包括第一轴向极，第二轴极和轴向致动器目标的轴向控制磁路中产生轴向控制磁通量，所述轴向致动器目标联接到具有 旋转轴。 可以在包括第一径向极，第二径向极和径向致动器靶的径向控制磁路中产生径向控制磁通。 可以将电补偿电流施加到电偏置通量调平线圈，以消除或几乎消除从第一或第二轴向磁极泄漏到径向极的磁通量的任何变化，缠绕在旋转轴线上的电偏置通量调平线圈 并且轴向位于径向极和最靠近第一或第二轴向极之间。

公开(公告)号：US20140234139A1

公开(公告)日：2014-08-21

申请号：US14347082

申请日：2012-05-29

Applicant: Atsushi Sakawaki ,  Yuji Nakazawa ,  Yusuke Irino ,  Naoya Yamashita

Inventor： Atsushi Sakawaki ,  Yuji Nakazawa ,  Yusuke Irino ,  Naoya Yamashita

IPC: H02K7/09

CPC classification number: H02K7/09 ,  F04D17/10 ,  F04D19/048 ,  F04D29/058 ,  F04D29/059 ,  F16C32/0442 ,  F16C32/0444 ,  F16C32/0451 ,  F16C32/0457 ,  F16C32/0463 ,  F16C32/0485 ,  F16C2360/44

Abstract: A stator is provided which exerts a combined electromagnetic force of a plurality of electromagnets on a drive shaft having a fluctuating load. A controller is provided which controls a current difference between a first coil current passed through a coil of the electromagnet generating an electromagnetic force in a direction opposite to that of the load and a second coil current passed through a coil of the electromagnet generating an electromagnetic force in the same direction as that of the load to perform a position control on the drive shaft. The controller adjusts the second coil current to reduce an average value of the second coil current.

Abstract translation: 提供了一种定子，其在具有波动负载的驱动轴上施加多个电磁体的组合电磁力。 提供一种控制器，其控制通过电磁体的线圈的第一线圈电流之间的电流差异，该电流在与负载的方向相反的方向上产生电磁力，以及通过电磁体的线圈产生电磁力的第二线圈电流 在与驱动轴上进行位置控制的负载相同的方向上。 控制器调节第二线圈电流以减小第二线圈电流的平均值。