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    Radial magnetic bearing and method of manufacture
    53.
    发明授权
    Radial magnetic bearing and method of manufacture 有权

    公开(公告)号：US09845829B2

    公开(公告)日：2017-12-19

    申请号：US14517770

    申请日：2014-10-17

    Applicant: Stephane Hay ,  Nicolas Soulier

    Inventor： Stephane Hay ,  Nicolas Soulier

    IPC: F16C43/04 ,  F16C32/04 ,  B23P15/00 ,  F16C43/00

    CPC classification number: F16C32/0474 ,  B23P15/003 ,  F16C32/0461 ,  F16C32/0468 ,  F16C32/048 ,  F16C43/00 ,  F16C43/04 ,  F16C2202/42 ,  F16C2300/02 ,  Y10T29/49009

    Abstract: A radial magnetic bearing having an inner rotor including a central shaft having a ferromagnetic armature mounted on the shaft and an outer stator providing a plurality of electromagnets including poles made of ferromagnetic material which project radially inwardly towards the rotor is provided. As such, air-gaps (e) are left between end faces of the poles and the ferromagnetic armature, and coils wound around the poles. The poles are extended through outer portions attached to a supporting member. Each pole and the corresponding outer portion are included in an angularly segmented module providing a stack of laminations made of ferromagnetic material. The outer portion defines shoulders with respect to the corresponding pole, the outer portion contacting outer portions of neighboring segmented modules and the outer portions of all segmented modules being assembled by clamping rings, wherein the coils located in free spaces around the poles are mounted in a string.

    Rotor sensor target for magnetic bearings
    54.
    发明授权
    Rotor sensor target for magnetic bearings 有权

    公开(公告)号：US09841294B2

    公开(公告)日：2017-12-12

    申请号：US14572849

    申请日：2014-12-17

    Applicant: Eduardo Carrasco

    Inventor： Eduardo Carrasco

    IPC: G01B7/30 ,  G01D5/14 ,  G01D5/20 ,  F16C32/04

    CPC classification number: G01D5/14 ,  F16C32/0446 ,  G01D5/20

    Abstract: A rotor sensor target for magnetic bearings, the rotor sensor target comprising a ring-shaped assembly of magnetic material mounted on a generally ring-shaped assembly of non-magnetic material. The magnetic and non-magnetic ring shaped assemblies are coaxially arranged and mounted on a shaft having a longitudinal axis of rotation X′-X. The generally ring-shaped assembly of non-magnetic material comprises at least one ring-shaped slit having the longitudinal axis X′-X and may be made of a cheaper material, such as aluminum. The ring-shaped slit provides flexibility which permits operation over a wide range of temperatures without risking of damaging the ring-shaped assembly of magnetic material.

    METHOD AND SYSTEM FOR DETERMINING CORE LOSSES IN A PERMANENT MAGNET SYNCHRONOUS MOTOR
    56.
    发明申请
    METHOD AND SYSTEM FOR DETERMINING CORE LOSSES IN A PERMANENT MAGNET SYNCHRONOUS MOTOR 有权
    用于确定永磁同步电机中的核心损耗的方法和系统

    公开(公告)号：US20160091569A1

    公开(公告)日：2016-03-31

    申请号：US14862597

    申请日：2015-09-23

    Applicant: Lateb RAMDANE

    Inventor： Lateb RAMDANE

    IPC: G01R31/34

    CPC classification number: G01R31/343

    Abstract: A method and system for determining core losses in a permanent magnet synchronous motor, comprising a measurement of the losses of the motor with the motor not connected to a load, and a deduction of the core losses of the motor from the losses of the motor. The motor is placed in an over-fluxing state during the measurement of the losses.

    Abstract translation: 一种用于确定永磁同步电动机中的铁心损耗的方法和系统，包括：电动机与不连接到负载的电动机的损耗的测量，以及从电动机的损耗中扣除电动机的磁芯损耗。 在测量损耗期间，电机处于过流状态。

    Active magnetic bearings control system
    57.
    发明授权
    Active magnetic bearings control system 有权
    主动磁轴承控制系统

    公开(公告)号：US09293971B2

    公开(公告)日：2016-03-22

    申请号：US14319700

    申请日：2014-06-30

    Applicant: SKF Magnetic Mechatronics

    Inventor： Salim Benbouzid ,  Joaquim Da Silva ,  Jean Levine ,  Stephane Turpault

    IPC: G05D23/275 ,  H02K11/00 ,  H02P31/00 ,  F16C32/04

    CPC classification number: H02K11/33 ,  F16C32/0444 ,  F16C32/0446 ,  F16C32/0451 ,  F16C32/0476 ,  H02P31/00 ,  H02P2203/00

    Abstract: A control device for controlling the position of a rotor supported by active magnetic bearings is provided. The control device includes a trajectory planning module for generating a requested position, speed and acceleration; a feedback unit for generating a position feedback value and a speed feedback value; a first correction circuit for generating a first command signal according to the difference between the requested position and speed and the position and speed feedback value respectively; a feed-forward controller for generating a second command signal; an adder for adding first and second command signals and delivering a third command signal for a non-linear inversion circuit connected to the adder for generating flux command signals for the electromagnets, and a second correction circuit for generating voltage command signals for the power amplifiers which control the current flowing in the electromagnet coils of the active magnetic bearings.

    Abstract translation: 提供一种用于控制由主动磁轴承支撑的转子的位置的控制装置。 控制装置包括用于产生请求位置，速度和加速度的轨迹规划模块; 用于产生位置反馈值和速度反馈值的反馈单元; 第一校正电路，用于分别根据请求位置和速度之间的差异以及位置和速度反馈值产生第一命令信号; 用于产生第二命令信号的前馈控制器; 加法器，用于对第一和第二命令信号进行加法并输出连接到加法器的用于产生电磁体的通量指令信号的非线性反相电路的第三指令信号，以及用于产生功率放大器的电压指令信号的第二校正电路， 控制在主动磁轴承的电磁线圈中流动的电流。

    ROTOR ASSEMBLY WITH PERMANENT MAGNETS AND METHOD OF MANUFACTURE
    58.
    发明申请
    ROTOR ASSEMBLY WITH PERMANENT MAGNETS AND METHOD OF MANUFACTURE 有权
    具有永久磁铁的转子总成及其制造方法

    公开(公告)号：US20150171675A1

    公开(公告)日：2015-06-18

    申请号：US14571563

    申请日：2014-12-16

    Applicant: Eduardo CARRASCO ,  Ulrich SCHROEDER

    Inventor： Eduardo CARRASCO ,  Ulrich SCHROEDER

    IPC: H02K1/27 ,  H02K15/00 ,  H02K1/30

    CPC classification number: H02K1/274 ,  H02K1/278 ,  H02K1/28 ,  H02K1/30 ,  H02K15/00 ,  H02K15/03 ,  H02K2213/03 ,  Y10T29/49009

    Abstract: A permanent magnet rotor assembly comprises a cylindrically shaped shaft having an outer surface, a plurality of permanent magnets constituting portions of annular segments and an outer retaining cylindrical sleeve surrounding the plurality of permanent magnets. The assembly further comprises a cylindrical magnet housing mounted on the cylindrically shaped shaft for supporting the plurality of permanent magnets. The cylindrical magnet housing is formed of a magnetic material. The retaining cylindrical sleeve is preloaded by a resultant interference fit IF2 which is defined by the following formula: IF2=−ØY+√{square root over (((ØY+IF1)̂2+ØŶ2−ØX̂2))}. where ØY is an external diameter of the plurality of permanent magnets, ØX is an internal diameter of the cylindrical magnet housing, and IF1 is a primary interference fit between an external diameter of the cylindrically shaped shaft and the internal diameter of the cylindrical magnet housing.

    Abstract translation: 永磁转子组件包括具有外表面的圆柱形轴，构成环形段部分的多个永磁体和围绕多个永磁体的外保持圆柱形套筒。 组件还包括安装在圆柱形轴上用于支撑多个永磁体的圆柱形磁体壳体。 圆柱形磁体壳体由磁性材料形成。 保持圆柱形套筒由合成的干涉配合IF2预加载，IF2由以下公式定义：IF2 =-ØY+√{（（（YY + IF1）2 +ØŶ2-ØX2））的平方根。 其中ØY是多个永磁体的外径，ØX是圆柱形磁体壳体的内径，IF1是圆柱形轴的外径和圆柱形磁体壳体的内径之间的主要过盈配合。

    DIGITAL NONLINEAR CORRECTOR FOR ACTIVE MAGNETIC BEARINGS
    59.
    发明申请
    DIGITAL NONLINEAR CORRECTOR FOR ACTIVE MAGNETIC BEARINGS 有权
    用于主动磁力轴承的数字非线性校正器

    公开(公告)号：US20150167733A1

    公开(公告)日：2015-06-18

    申请号：US14571544

    申请日：2014-12-16

    Applicant: Lakdar SADI-HADDAD ,  Joaquim DA SILVA ,  Olivier LEMARCHAND

    Inventor： Lakdar SADI-HADDAD ,  Joaquim DA SILVA ,  Olivier LEMARCHAND

    IPC: F16C32/04

    CPC classification number: F16C32/0444 ,  F16C32/0451 ,  F16C32/0455

    Abstract: A digital nonlinear corrector of an active magnetic bearing receiving an input signal x(t) and outputting an output control signal u(t) for controlling the position of said active magnetic bearing, the input signal being digitalized by a ADC circuit and provided to an adder, the digital nonlinear corrector comprising a closed control loop delivering an intermediary sequence of numbers y[kT] and having a direct branch comprising a first proportional gain circuit and a feedback branch comprising a series connection of a low-pass filter and a dead zone circuit, such that said low-pass filter is activated when determined upper and lower values of said output control signal are reached, the output control signal reproducing the input signal when these determined upper and lower values are not reached.

    Abstract translation: 接收输入信号x（t）并输出用于控制所述主动轴承的位置的输出控制信号u（t）的有源磁轴承的数字非线性校正器，所述输入信号由ADC电路数字化并提供给 加法器，所述数字非线性校正器包括传递数字y [kT]的中间序列的闭合控制环，并具有包括第一比例增益电路和反馈支路的直接分支，所述反馈支路包括低通滤波器和死区的串联连接 电路，使得当达到所述输出控制信号的确定的上限和下限值时，所述低通滤波器被激活，当没有达到这些确定的上限和下限值时，输出控制信号再现输入信号。

    VERSATILE COOLING HOUSING FOR AN ELECTRICAL MOTOR
    60.
    发明申请
    VERSATILE COOLING HOUSING FOR AN ELECTRICAL MOTOR 有权
    电动马达的多个冷却外壳

    公开(公告)号：US20150145356A1

    公开(公告)日：2015-05-28

    申请号：US14555742

    申请日：2014-11-28

    Applicant: Nicolas SOULIER ,  Sebastien FERRARI ,  Stephane LAFON ,  Alexandre MOUREAUD

    Inventor： Nicolas SOULIER ,  Sebastien FERRARI ,  Stephane LAFON ,  Alexandre MOUREAUD

    IPC: H02K5/18 ,  H02K9/19

    CPC classification number: H02K5/18 ,  H02K9/14 ,  H02K9/19

    Abstract: An electrical device comprising a housing having cooling fins located in a central portion along an exterior surface of the housing and a laminated magnetic stack disposed within the housing and interfacing with an interior surface of the housing at the central portion. The cooling fins are configured alternatively higher and smaller on an inlet manifold and in opposition on an outlet manifold.

    Abstract translation: 一种电气设备，包括壳体，所述壳体具有位于所述壳体的外表面的中心部分中的散热片，以及设置在所述壳体内并与所述壳体在所述中央部分的内表面相接合的层叠磁性堆叠。 冷却翅片在入口歧管上可选地更高和更小地配置，并且在出口歧管上相对地配置。

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