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公开(公告)号：US12276540B2
公开(公告)日：2025-04-15
申请号：US17888557
申请日：2022-08-16
Applicant: SKF Magnetic Mechatronics
Inventor： Salim Benbouzid , Joaquim Da Silva , Joel Mouterde
Abstract: Rotating machine vibration monitoring process for detecting degradations within a rotating machine providing an output axle fitted with magnetic bearings, the magnetic bearings having at least a position sensor and at least a magnetic actuator, the process provides the following steps: 1) defining a set of excitations that does not destabilizes the rotating machine, 2) injecting the set of excitations in the rotating machine through the magnetic actuators and 3) measuring the response of the rotating machine checking whether the response verifies at least one predefined criterium, 4) if it is not the case, adjusting the properties of the set of excitations and resuming the process at the injection step, 5) if the response verifies the at least one criterium, determining at least one condition indicator based on the response measured, 6) determining if an alarm is to be triggered based on the condition indicator determined.
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公开(公告)号：US11728696B2
公开(公告)日：2023-08-15
申请号：US17121148
申请日：2020-12-14
Applicant: SKF MAGNETIC MECHATRONICS
Inventor： Erwan Salahun , Joaquim Da Silva , Bruno Tellier
Abstract: A lamination stack for use in a rotating electrical machine includes a plurality of sheets of ferritic material. Each of the sheets has first and second sides that include asperities, and the asperities have a height of about two microns and a width of about two microns. A layer of electrically insulating material is provided between adjacent pairs of the ferritic sheets in the stack, and the asperities extend into the electrically insulating material.
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公开(公告)号：US20210099032A1
公开(公告)日：2021-04-01
申请号：US17121148
申请日：2020-12-14
Applicant: SKF MAGNETIC MECHATRONICS
Inventor： Erwan Salahun , Joaquim Da Silva , Bruno Tellier
Abstract: A lamination stack for use in a rotating electrical machine includes a plurality of sheets of ferritic material. Each of the sheets has first and second sides that include asperities, and the asperities have a height of about two microns and a width of about two microns. A layer of electrically insulating material is provided between adjacent pairs of the ferritic sheets in the stack, and the asperities extend into the electrically insulating material.
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公开(公告)号：US20230075064A1
公开(公告)日：2023-03-09
申请号：US17888557
申请日：2022-08-16
Applicant: SKF Magnetic Mechatronics
Inventor： Salim Benbouzid , Joaquim Da Silva , Joel Mouterde
Abstract: Rotating machine vibration monitoring process for detecting degradations within a rotating machine providing an output axle fitted with magnetic bearings, the magnetic bearings having at least a position sensor and at least a magnetic actuator, the process provides the following steps: 1) defining a set of excitations that does not destabilizes the rotating machine, 2) injecting the set of excitations in the rotating machine through the magnetic actuators and 3) measuring the response of the rotating machine checking whether the response verifies at least one predefined criterium, 4) if it is not the case, adjusting the properties of the set of excitations and resuming the process at the injection step, 5) if the response verifies the at least one criterium, determining at least one condition indicator based on the response measured, 6) determining if an alarm is to be triggered based on the condition indicator determined.
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Patent Agency Ranking
公开(公告)号：US20210305881A1
公开(公告)日：2021-09-30
申请号：US17176202
申请日：2021-02-16
Applicant: SKF Magnetic Mechatronics
Inventor： Joaquim Da Silva , Joel Mouterde
Abstract: A system for compensating for the stresses applied to a bearing that rotatably supports a rotor shaft of a rotating machine relative to a stator of the machine. The system provides at least one sensor for measuring an input signal positioned on an element of the bearing, a module for acquiring the input signal configured to convert the input signal into a value of the deformation applied to the rolling bearing, a module for determining a compensation signal as a function of the deformation value, and an amplifier module configured to control a magnetic actuator rotatably supporting the shaft of the rotor and including at least one electromagnet, the amplifier module being configured to convert the compensation signal into a voltage signal transmitted to the electromagnet of the magnetic actuator, the magnetic actuator being configured to exert a force on the rotor shaft as a function of the voltage signal.
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公开(公告)号：US10897164B2
公开(公告)日：2021-01-19
申请号：US15597275
申请日：2017-05-17
Applicant: SKF Magnetic Mechatronics
Inventor： Erwan Salahun , Joaquim Da Silva , Bruno Tellier
Abstract: The invention relates to a method of manufacturing a lamination stack used in a rotating electrical machine. The method includes providing naked sheets made of ferritic material; preparing both sides of each sheet so as to obtain a determined surface roughness; coating at least one side of each sheet with an chemically protective electrically insulating material; stacking the coated sheets; compressing the stack obtained; heating the compressed stack at a temperature above the melting temperature of the insulating material; and cooling down the compressed stack so as to form an integral lamination stack consisting of alternating sheets of ferritic material and layers of insulating material. The invention also relates to an electrical machine comprising such a lamination stack.
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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。
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公开(公告)号：US20170338699A1
公开(公告)日：2017-11-23
申请号：US15597275
申请日：2017-05-17
Applicant: SKF Magnetic Mechatronics
Inventor： Erwan Salahun , Joaquim Da Silva , Bruno Tellier
CPC classification number: H02K1/02 , H02K7/09 , H02K15/02 , H02K2201/09
Abstract: The invention relates to a method of manufacturing a lamination stack used in a rotating electrical machine. The method includes providing naked sheets made of ferritic material; preparing both sides of each sheet so as to obtain a determined surface roughness; coating at least one side of each sheet with an chemically protective electrically insulating material; stacking the coated sheets; compressing the stack obtained; heating the compressed stack at a temperature above the melting temperature of the insulating material; and cooling down the compressed stack so as to form an integral lamination stack consisting of alternating sheets of ferritic material and layers of insulating material. The invention also relates to an electrical machine comprising such a lamination stack.
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公开(公告)号：US20150002000A1
公开(公告)日：2015-01-01
申请号：US14319700
申请日：2014-06-30
Applicant: SKF Magnetic Mechatronics
Inventor： Salim Benbouzid , Joaquim Da Silva , Jean Levine , Stephane Turpault
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。
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