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公开(公告)号：US10689227B2
公开(公告)日：2020-06-23
申请号：US16273310
申请日：2019-02-12
Applicant: Kone Corporation
Inventor： Tuukka Korhonen , Tero Hakala , Pasi Raassina , Seppo Suur-Askola , Marko Hinkkanen , Seppo Saarakkala , Maksim Sokolov , Reza Hosseinzadeh
Abstract: The invention refers to an electric linear motor, control apparatus, transport system and a method. The electric linear motor comprises a longitudinal stator beam; at least one mover at least partially surrounding the stator beam and adapted to move along the stator beam; which stator beam comprises at least two side faces located at opposite sides of the stator beam, each of the side faces carrying ferromagnetic poles spaced apart by a pitch, and which mover comprises at least two counter-faces facing the respective side faces of the stator beam. The mover has in at least one of said counter-faces rotor units having at least one winding and at least one permanent magnet arranged to co-act with the ferromagnetic poles of the respective side faces of the stator beam. The ferromagnetic stator poles of the stator beam and the rotor units of the mover are used for generating propulsion forces for driving the mover along the stator beam as well as for generating attraction forces to levitate the mover around the stator beam while driving.
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公开(公告)号：US11043864B2
公开(公告)日：2021-06-22
申请号：US16540263
申请日：2019-08-14
Applicant: KONE Corporation
Inventor： Seppo Saarakkala , Victor Mukherjee , Maksim Sokolov , Marko Hinkkanen , Anouar Belahcen
Abstract: A method and apparatus for self-commissioning a bearingless-motor drive, which includes a bearingless motor and a control unit of the bearingless motor are disclosed. The motor includes at least one winding and at least one permanent magnet. The method includes generating a magnetic model, the magnetic model including a plurality of constant parameters; supplying, while the movable part remains standstill, to the at least one winding at least two unequal currents; measuring, with a magnetic sensor, flux linkages caused by said at least two unequal currents, respectively; calculating, with the magnetic model, flux linkages by inputting to the magnetic model current values equal to the currents supplied to the at least one winding; and fitting, with a least-squares fitting algorithm, at least one constant parameter in the magnetic model such that the difference between the measured and calculated flux linkages will be minimized.
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公开(公告)号：US20200076255A1
公开(公告)日：2020-03-05
申请号：US16540263
申请日：2019-08-14
Applicant: KONE Corporation
Inventor： Seppo Saarakkala , Victor Mukherjee , Maksim Sokolov , Marko Hinkkanen , Anouar Belahcen
Abstract: A method and apparatus for self-commissioning a bearingless-motor drive, which includes a bearingless motor and a control unit of the bearingless motor are disclosed. The motor includes at least one winding and at least one permanent magnet. The method includes generating a magnetic model, the magnetic model including a plurality of constant parameters; supplying, while the movable part remains standstill, to the at least one winding at least two unequal currents; measuring, with a magnetic sensor, flux linkages caused by said at least two unequal currents, respectively; calculating, with the magnetic model, flux linkages by inputting to the magnetic model current values equal to the currents supplied to the at least one winding; and fitting, with a least-squares fitting algorithm, at least one constant parameter in the magnetic model such that the difference between the measured and calculated flux linkages will be minimized.
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公开(公告)号：US20190300329A1
公开(公告)日：2019-10-03
申请号：US16273310
申请日：2019-02-12
Applicant: Kone Corporation
Inventor： Tuukka Korhonen , Tero Hakala , Pasi Raassina , Seppo Suur-Askola , Marko Hinkkanen , Seppo Saarakkala , Maksim Sokolov , Reza Hosseinzadeh
Abstract: The invention refers to an electric linear motor, control apparatus, transport system and a method. The electric linear motor comprises a longitudinal stator beam; at least one mover at least partially surrounding the stator beam and adapted to move along the stator beam; which stator beam comprises at least two side faces located at opposite sides of the stator beam, each of the side faces carrying ferromagnetic poles spaced apart by a pitch, and which mover comprises at least two counter-faces facing the respective side faces of the stator beam. The mover has in at least one of said counter-faces rotor units having at least one winding and at least one permanent magnet arranged to co-act with the ferromagnetic poles of the respective side faces of the stator beam. The ferromagnetic stator poles of the stator beam and the rotor units of the mover are used for generating propulsion forces for driving the mover along the stator beam as well as for generating attraction forces to levitate the mover around the stator beam while driving.
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