公开(公告)号：US20240297603A1

公开(公告)日：2024-09-05

申请号：US18585346

申请日：2024-02-23

Applicant: SKF Magnetic Mechatronics

Inventor： Sylvain PALMERI ,  Lakdar SADI-HADDAD

IPC: H02P27/04 ,  H02K7/09 ,  H02P6/18

CPC classification number: H02P27/045 ,  H02P6/18 ,  H02K7/09

Abstract: A device for detecting a change in the direction of rotation of a rotor for a magnetic bearing. The device includes a determining means (102) and a comparing means (103). The determining means (102) determines a spacing between the axis of rotation of the rotor and the centre of gravity of the rotor. The comparing means (103) compares the spacing between the axis of rotation of the rotor and the centre of gravity of the rotor with a predefined threshold (Se) when the absolute value of the speed of rotation of the rotor is greater than a predefined imbalance detection speed threshold (SB). The comparing means (103) also detects the change in the direction of rotation of the rotor from the result of the comparison.

公开(公告)号：US20250154983A1

公开(公告)日：2025-05-15

申请号：US18938408

申请日：2024-11-06

Applicant: SKF Magnetic Mechatronics

Inventor： Lakdar SADI-HADDAD ,  Josue SAURY

IPC: F16C32/04

Abstract: A control system (1) for a magnetic bearing (2) includes a first control branch (BR1) and a second control branch (BR2). The first control branch (BR1) includes at least one control means (3) configured to drive at least one first servo control shaft of the magnetic bearing. The second control branch (BR2) is identical to the first control branch (BR1). The control system (1) may also include a selection means (5) for activating the control means (4) of the second control branch (BR2) upon the failure of the control means (3) of the first control branch (BR1).

公开(公告)号：US20240183749A1

公开(公告)日：2024-06-06

申请号：US18514329

申请日：2023-11-20

Applicant: AKTIEBOLAGET SKF ,  SKF MAGNETIC MECHATRONICS

Inventor： Lakdar SADI-HADDAD ,  Josue SAURY ,  Lloyd BROWN ,  David BEGGS

IPC: G01M13/023 ,  F16G1/00 ,  G01M13/028

CPC classification number: G01M13/023 ,  F16G1/00 ,  G01M13/028

Abstract: A transmission belt arrangement includes a transmission belt, at least one sensor for providing a parameter indicative of a vibration signature of the transmission belt arrangement, and processing circuitry for determining a state of the transmission belt based on the parameter and/or based on the vibration signature indicated by the parameter.

公开(公告)号：US20240295578A1

公开(公告)日：2024-09-05

申请号：US18585189

申请日：2024-02-23

Applicant: SKF Magnetic Mechatronics

Inventor： Sylvain PALMERI ,  Lakdar SADI-HADDAD

IPC: G01P13/04 ,  F16C32/04

CPC classification number: G01P13/045 ,  F16C32/0474

Abstract: A device (17) for detecting the direction of rotation of a rotor for a magnetic bearing includes comparing means (100), first determining means (105), and second determining means (107). The comparing means (100) compares the speed of rotation of the rotor with a predefined speed threshold (Se). The first determining means (105) determines the speed of rotation gradient of the rotor. The second determining means (107) determines the direction of rotation of the rotor from the result of the comparison of the speed of rotation of the rotor with the predefined speed threshold (Se) and the value of the determined parameter representative of the kinetics of the rotor.

公开(公告)号：US20240183748A1

公开(公告)日：2024-06-06

申请号：US18514255

申请日：2023-11-20

Applicant: AKTIEBOLAGET SKF ,  SKF MAGNETIC MECHATRONICS

Inventor： Lakdar SADI-HADDAD ,  Josue SAURY ,  Lloyd BROWN ,  David BEGGS

IPC: G01M13/023 ,  F16G1/00

CPC classification number: G01M13/023 ,  F16G1/00

Abstract: A transmission belt arrangement includes at least one transmission belt, at least one sensor configured to measure a parameter indicative of a surface mapping of the at least one transmission belt, and processing circuitry operatively connected to the at least one sensor and configured to determine a state of the at least one transmission belt based on the parameter indicative of the surface mapping.

公开(公告)号：US20250158484A1

公开(公告)日：2025-05-15

申请号：US18938388

申请日：2024-11-06

Applicant: SKF Magnetic Mechatronics

Inventor： Lakdar SADI-HADDAD ,  Sylvain PALMERI

IPC: H02K7/09 ,  H04B3/54

Abstract: A control system (1) for a magnetic bearing (3, 4). The control system (1) comprises a control loop (BR1) for the magnetic bearing. The control loop comprises a master control node (5) and at least two slave control nodes (6, 7). The slave control nodes (6, 7,) are connected in series by a first bidirectional data bus (8) of said system. A second bidirectional data bus (9) connects the control nodes (6, 7) situated at the ends of the control loop to one another. The master control node comprises transmitting means (10).

公开(公告)号：US20240243652A1

公开(公告)日：2024-07-18

申请号：US18405009

申请日：2024-01-05

Applicant: SKF Magnetic Mechatronics ,  SKF Canada Limited

Inventor： Nicholas FALCONAR ,  Jinyi XIE ,  Lakdar SADI-HADDAD

IPC: H02M1/00 ,  H02M1/088 ,  H02M3/335

CPC classification number: H02M1/0043 ,  H02M1/088 ,  H02M3/33515 ,  H02M3/33592

Abstract: A control system (15) for controlling a full bridge converter to compensate the reactive power consumed by an inductive position sensor for a rotor of an electrical machine supported by at least one active magnetic bearing is proposed. The inductive position sensor is supplied by an alternating current source. The control system (15) includes a phase shift determining means (26) to determine a phase shift (SP) between a supply voltage (VS) and a supply current (IS) delivered by the source. A first control loop (22) controls the amplitude (AC) of a control signal (SC) from the phase shift (SP). A second control loop (23) controls the phase of the control signal (SC). A third control loop (24) controls a voltage reference (VR). A controlling means (25) controls a full bridge converter according to the control signal (SC).

公开(公告)号：US20240183432A1

公开(公告)日：2024-06-06

申请号：US18514372

申请日：2023-11-20

Applicant: AKTIEBOLAGET SKF ,  SKF MAGNETIC MECHATRONICS

Inventor： Lakdar SADI-HADDAD ,  Josue SAURY ,  Lloyd BROWN ,  David BEGGS

IPC: F16H7/08 ,  G01M13/023

CPC classification number: F16H7/08 ,  G01M13/023 ,  F16H2007/0861

Abstract: A transmission belt arrangement includes at least one transmission belt, at least one sensor configured to measure a parameter indicative of a distance between the at least one sensor and the at least one transmission belt, and processing circuitry configured to determine a state of the at least one transmission belt based on the parameter and/or based on the distance.

公开(公告)号：US20240110617A1

公开(公告)日：2024-04-04

申请号：US18468951

申请日：2023-09-18

Applicant: AKTIEBOLAGET SKF ,  SKF MAGNETIC MECHATRONICS

Inventor： Lakdar SADI-HADDAD ,  Josue SAURY ,  Lloyd BROWN ,  David BEGGS

IPC: F16H57/01 ,  G01N21/88

CPC classification number: F16H57/01 ,  G01N21/8851 ,  F16H7/02

Abstract: A transmission belt includes a belt member, and at least one sensor attached to the belt member that is configured to measure a parameter indicative of a state of the transmission belt. A transmitter is attached to the belt member and configured to transmit a signal indicative of the state of the transmission belt to a receiver. The transmission belt includes a power system configured to provide power to the at least one sensor and/or the transmitter, and the power system includes a power source and an energy converter. The energy converter is configured to receive energy, convert the received energy to electrical energy and provide the electrical energy to the power source.