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1. 发明申请

US20190252942A1 MAGNETICALLY COUPLED FLYWHEEL 审中-公开
公开(公告)号：US20190252942A1
公开(公告)日：2019-08-15
申请号：US16353064
申请日：2019-03-14
申请人： CHAKRATEC LTD.
发明人： Ilan BEN DAVID , Nir ZOHAR , David PINCU
IPC分类号： H02K7/02 , H02K7/08 , H02K7/09 , F16C32/04 , F16F15/18 , F16F15/00 , F16C19/52 , F16F15/315 , F16F15/03 , F16F15/30
CPC分类号： H02K7/025 , F16C19/527 , F16C32/0402 , F16C32/0446 , F16C32/0451 , F16C2361/55 , F16F15/005 , F16F15/03 , F16F15/18 , F16F15/30 , F16F15/3156 , H02K7/02 , H02K7/083 , H02K7/085 , H02K7/09 , Y02E60/16
摘要： A stabilization system for a rotating load, such as a flywheel, includes a mechanical bearing to continuously support a shaft of the rotating load so as to hold the shaft at a substantially fixed axis of rotation. A magnetic stabilization assembly includes a plurality of electromagnets arranged around the shaft. Control circuitry for controls a resultant magnetic field generated by the electromagnets such that the magnetic field acts on a ferromagnetic element of the shaft to reduce imbalance forces acting on the shaft.

2. 发明申请

US20180180095A1 A CONTROL DEVICE AND A METHOD FOR CONTROLLING MAGNETIC LEVITATION AND TORQUE GENERATION 审中-公开
公开(公告)号：US20180180095A1
公开(公告)日：2018-06-28
申请号：US15737542
申请日：2016-05-11
申请人： LAPPEENRANNAN TEKNILLINEN YLIOPISTO
发明人： Rafal JASTRZEBSKI , Pekko JAATINEN
IPC分类号： F16C32/04 , H02K7/09 , H02K11/21 , G05B17/02
CPC分类号： F16C32/0476 , F16C32/0451 , F16C32/0457 , F16C32/0497 , G05B17/02 , H02K7/09 , H02K11/21 , H02K11/215 , H02K2213/03 , H02P4/00 , H02P25/16 , H02P27/08 , H02P29/40
摘要： An electrical drive includes an electrical machine, a first converter stage connected to terminals of stator phase-windings of the electrical machine, and a second converter stage connected to intermediate points of the stator phase-windings. A control device determines first component currents and second component currents so that torque is generated in accordance with electrical machine control and magnetic levitation force is directed to a rotor of the electrical machine in accordance with levitation control when portions of the phase-windings between the terminals and the intermediate points carry both the first and second component currents and the other portions of the phase-windings carry the first component currents. The reference currents for the first converter stage are determined based on the first and second component currents, and the reference currents for the second converter stage are determined based on the second component currents.

3. 发明申请

US20170244300A1 MAGNETICALLY COUPLED FLYWHEEL 审中-公开
公开(公告)号：US20170244300A1
公开(公告)日：2017-08-24
申请号：US15592215
申请日：2017-05-11
申请人： CHAKRATEC LTD.
发明人： Ilan Ben David , Nir Zohar , David Pincu
IPC分类号： H02K7/02 , F16F15/03 , F16F15/18 , F16F15/00 , H02K7/08 , F16C19/52
CPC分类号： H02K7/025 , F16C19/527 , F16C32/0402 , F16C32/0446 , F16C32/0451 , F16C2361/55 , F16F15/005 , F16F15/03 , F16F15/18 , F16F15/30 , F16F15/3156 , H02K7/02 , H02K7/083 , H02K7/085 , H02K7/09 , Y02E60/16
摘要： A stabilization system for a rotating load, such as a flywheel, includes a mechanical bearing to continuously support a shaft of the rotating load so as to hold the shaft at a substantially fixed axis of rotation. A magnetic stabilization assembly includes a plurality of electromagnets arranged around the shaft. Control circuitry for controls a resultant magnetic field generated by the electromagnets such that the magnetic field acts on a ferromagnetic element of the shaft to reduce imbalance forces acting on the shaft.

4. 发明申请

US20170234363A1 MAGNETIC BEARING AND METHOD TO BUILD CONTROL MODELS FOR MAGNETIC BEARINGS 审中-公开
公开(公告)号：US20170234363A1
公开(公告)日：2017-08-17
申请号：US15504396
申请日：2015-08-31
申请人： DAIKIN INDUSTRIES, LTD.
发明人： Atsushi SAKAWAKI
IPC分类号： F16C32/04 , H02K7/09
CPC分类号： F16C32/0451 , F16C32/0448 , F16C32/048 , F16C2360/23 , H02K7/09
摘要： In a state where part of a plurality of electromagnets (27) is controlled based on a control model built in advanced for a first control region (A1), and where position control of a drive shaft (13) is performed by controlling one or a group of the electromagnets (27) in a second control region (A2), an electromagnetic force of the electromagnets (27) controlled within the second control region (A2) is calculated based on an electromagnetic force of the electromagnets (27) controlled within the first control region (A1).

5. 发明申请

US20160169280A1 SELF-SENSING ACTIVE MAGNETIC BEARING SYSTEMS AND METHODS 有权
标题翻译：自感主动磁轴承系统及方法
公开(公告)号：US20160169280A1
公开(公告)日：2016-06-16
申请号：US14572369
申请日：2014-12-16
申请人： GENERAL ELECTRIC COMPANY
发明人： Christoph Boeld , Mohamed Osama
IPC分类号： F16C32/04 , H02K15/08 , H02K7/09 , H01F41/02 , F16C43/00
CPC分类号： F16C32/0451 , F16C32/0448 , F16C32/0474 , F16C32/048 , F16C43/00 , H01F41/02 , H02K7/09 , H02K15/08
摘要： One embodiment describes a rotary machine system, which includes a stator with a first tooth, a second tooth, a third tooth, and a fourth tooth; a first electromagnet that includes a first electromagnet wire wrapped around the second tooth and the third tooth and that generates a first magnetic field to attract a drive shaft; a first integrated position sensor, which includes a first sensor wire that carries a first current wrapped around the first tooth and the second tooth; a second integrated sensor, which includes a second sensor wire that carries a second current wrapped around the third tooth and the fourth tooth; and a controller that determines current position of the drive shaft based at least on change of inductance of the first sensor wire and the second sensor wire, and that instructs the first electromagnet to adjust magnitude of the first magnetic field based at least in part on the current position.
摘要翻译：一个实施例描述了一种旋转机器系统，其包括具有第一齿，第二齿，第三齿和第四齿的定子; 第一电磁体，其包括围绕第二齿和第三齿缠绕的第一电磁线，并且产生第一磁场以吸引驱动轴; 第一集成位置传感器，其包括承载围绕第一齿和第二齿缠绕的第一电流的第一传感器线; 第二集成传感器，其包括携带围绕第三齿和第四齿缠绕的第二电流的第二传感器线; 以及控制器，其至少基于所述第一传感器线和所述第二传感器线的电感的变化来确定所述驱动轴的当前位置，并且所述控制器至少部分地基于所述第一磁场来指示所述第一电磁体来调整所述第一磁场的大小，当前位置。

6. 发明授权

US09347489B2 Magnetic bearing device and vacuum pump 有权
标题翻译：磁轴承装置和真空泵
公开(公告)号：US09347489B2
公开(公告)日：2016-05-24
申请号：US14154654
申请日：2014-01-14
申请人： SHIMADZU CORPORATION
发明人： Junichiro Kozaki
IPC分类号： F04D29/048 , F16C32/04 , F04D19/04 , F04D27/00 , F04D29/058
CPC分类号： F16C32/04 , F04D19/042 , F04D27/001 , F04D29/058 , F16C32/0446 , F16C32/0451 , F16C32/0455 , F16C2360/44 , F16C2360/45
摘要： A predetermined timing is a timing at which the sampling timing is in a vicinity of a maximum peak position of the carrier wave signal and a timing at which the sampling timing is in a vicinity of a minimum peak position. The demodulation arithmetic section outputs, as the demodulation calculated result, a value d3 calculated with d3=(d1−d2)/2 when a data value of the digital signal sampled in the vicinity of the maximum peak position is denoted by d1 and a data value of the digital signal sampled in the vicinity of the minimum peak position is denoted by d2.
摘要翻译：预定定时是采样定时在载波信号的最大峰值位置附近以及采样定时在最小峰值位置附近的定时。当在最大峰值位置附近采样的数字信号的数据值由d1表示时，解调运算部分输出用d3 =（d1-d2）/ 2计算的值d3作为解调计算结果，数据在最小峰值位置附近采样的数字信号的值由d2表示。

7. 发明授权

US09293971B2 Active magnetic bearings control system 有权
标题翻译：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
申请人： SKF Magnetic Mechatronics
发明人： Salim Benbouzid , Joaquim Da Silva , Jean Levine , Stephane Turpault
IPC分类号： G05D23/275 , H02K11/00 , H02P31/00 , F16C32/04
CPC分类号： H02K11/33 , F16C32/0444 , F16C32/0446 , F16C32/0451 , F16C32/0476 , H02P31/00 , H02P2203/00
摘要： 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.
摘要翻译：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。

8. 发明申请

US20150167733A1 DIGITAL NONLINEAR CORRECTOR FOR ACTIVE MAGNETIC BEARINGS 有权
标题翻译：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
申请人： Lakdar SADI-HADDAD , Joaquim DA SILVA , Olivier LEMARCHAND
发明人： Lakdar SADI-HADDAD , Joaquim DA SILVA , Olivier LEMARCHAND
IPC分类号： F16C32/04
CPC分类号： F16C32/0444 , F16C32/0451 , F16C32/0455
摘要： 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.
摘要翻译：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。

9. 发明授权

US08610322B2 Magnetic bearing and method for operation thereof 有权
标题翻译：磁轴承及其操作方法
公开(公告)号：US08610322B2
公开(公告)日：2013-12-17
申请号：US13055258
申请日：2009-07-10
申请人： Luitpold Miller , Qinghua Zheng
发明人： Luitpold Miller , Qinghua Zheng
IPC分类号： H02K7/09 , F16C32/04
CPC分类号： F16C32/0442 , F16C32/0451 , F16C37/005
摘要： The invention relates to a magnetic bearing and to a method for operation thereof. The magnetic bearing contains a ferromagnetic, movably mounted bearing element (1) and at least two magnetic devices (3o, 3u) arranged on opposing sides of the bearing element (1) and equipped with windings (6), wherein during operation of the magnetic bearing, electric currents are conducted through the windings (6) and these currents are regulated such that in an equilibrium state between the bearing element (1) and the two magnetic devices (3o, 3u), bearing gaps (10o, 10u) of predetermined size (So, Su) form. According to the invention, the temperatures produced in the magnetic devices (3o, 3u) during operation are measured and the regulation of the currents takes place such that in the equilibrium state, regardless of the load situation, the same temperatures appear in the magnetic devices (3o, 3u) or in the windings (6) thereof (FIG. 1).
摘要翻译：本发明涉及磁轴承及其操作方法。磁性轴承包括铁磁性，可移动安装的轴承元件（1）和布置在轴承元件（1）的相对侧上并配备有绕组（6）的至少两个磁性装置（3o，3u），其中在磁性轴承，电流通过绕组（6）传导，并且这些电流被调节为使得在轴承元件（1）和两个磁性装置（3o，3u）之间的平衡状态下，具有预定的轴承空间（10o，10u）大小（So，Su）形式。根据本发明，测量在操作期间在磁性装置（3o，3u）中产生的温度，并且电流的调节发生，使得在平衡状态下，不管负载情况如何，在磁性装置中出现相同的温度（3o，3u）或其绕组（6）（图1）。

10. 发明申请

US20090134727A1 Method for Operating an Electromotive Drive 有权
标题翻译：操作电动车驱动的方法
公开(公告)号：US20090134727A1
公开(公告)日：2009-05-28
申请号：US11988523
申请日：2006-06-28
申请人： Norbert Coenen , Marco Linke
发明人： Norbert Coenen , Marco Linke
IPC分类号： H02K7/09 , F16C39/06
CPC分类号： F16C32/0442 , D01H4/12 , D01H4/14 , F16C32/0451 , F16C32/0476 , F16C39/02 , F16C2231/00 , F16C2340/18 , H02K7/09
摘要： A method for operating an electromotive drive of a textile machine, comprising a contactlessly mounted rotor and catch bearings. The rotor rests on one catch bearing prior to initial operation, and is spaced therefrom by an air gap during stationary operation. A control device allows the rotor to be held in a force-free floating state during stationary operation. The method executes the following steps: (a) inputting an output signal from the control device for maintaining the force-free floating state during operation; (b) calculating the air gap by evaluating the output signal; (c) comparing the calculated value with predetermined limit values; and (d) deactuating the drive when the limit values are passed. The control device comprises a position sensor with at least one sensor coil, at least one actuator coil, a position controller and an integrator, at which the output signal is obtained to determine the air gap.
摘要翻译：一种用于操作纺织机械的电动驱动的方法，包括非接触式安装的转子和捕获轴承。转子在初始操作之前位于一个止动轴承上，并且在静止操作期间通过空气间隔开。控制装置允许转子在静止操作期间保持在无力的浮动状态。该方法执行以下步骤：（a）输入来自控制装置的输出信号，用于在运行期间维持无力浮动状态; （b）通过评估输出信号来计算气隙; （c）将所计算的值与预定极限值进行比较; 和（d）当限制值通过时停止驱动。控制装置包括具有至少一个传感器线圈，至少一个致动器线圈，位置控制器和积分器的位置传感器，在该传感器线圈处获得输出信号以确定气隙。

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