-
1.发明申请公开(公告)号：US20230017735A1
公开(公告)日：2023-01-19
申请号：US17812828
申请日：2022-07-15
Applicant: ABB Schweiz AG
Inventor： Timo Holopainen , Olli Liukkonen , Janne Roivainen , Tommi Ryyppö , Aron Szucs
IPC: G01M13/045 , G01H17/00 , H02P23/30 , H02P25/024
Abstract: A field of electric drive devices and electric machines, such as electric motors and electric generators for industrial applications, and more particularly to a method, an arrangement and a frequency converter for controlling lateral vibration of an electric machine. The arrangement of the present invention for controlling lateral vibration of an electric machine includes a frequency converter, one or more vibration sensors and an electric machine, wherein the one or more vibration sensors is/are arranged for measuring the lateral vibration from the electric machine and for producing measured vibration data; and wherein the frequency converter is arranged for generating a control torque for exerting the control torque on the stator of the electric machine, the control torque being determined utilizing the measured vibration data.
-
2.发明公开公开(公告)号：US20240192048A1
公开(公告)日：2024-06-13
申请号：US18524588
申请日：2023-11-30
Applicant: ABB Schweiz AG
Inventor： Timo Holopainen , Tommi Ryyppö , Aron Szucs
IPC: G01H1/10 , G01M13/045 , H02K7/065 , H02K11/24
CPC classification number: G01H1/10 , G01M13/045 , H02K7/065 , H02K11/24
Abstract: The invention relates to the field of electric drive devices and electric machines, such as electric drive motors and electric generators for industrial applications, and more particularly to a method and an arrangement for identification of lateral vibration characteristics of an electric machine. The arrangement for identification of lateral vibration characteristics of an electric machine according to the present invention includes a frequency converter, one or more vibration sensors and an electric machine, wherein said frequency converter is arranged for producing torsional excitation, said torsional excitation effecting lateral vibration in said electric machine; and wherein said one or more vibration sensors include at least one lateral vibration sensor arranged for measuring the lateral vibration from said electric machine as excitation response and for producing lateral vibration data.
-
公开(公告)号：US11888366B2
公开(公告)日：2024-01-30
申请号：US17134712
申请日：2020-12-28
Applicant: ABB Schweiz AG
Inventor： Mikael Heikel , Mark Szucs-Bartfai , Aron Szucs , Blanka Szucs-Bartfai , Zsolt Kovacs , Jan Westerlund
CPC classification number: H02K17/20 , H02K17/42 , H02K2213/03
Abstract: The disclosure relates to an electric induction machine in which a chamfer region is provided between each respective rotor groove and rotor bar at a position corresponding to a radially outer internal corner region of the rotor groove. Suitably, the chamfer region has a relative magnetic permeability less than that of the rotor frame, and an electrical resistivity higher than that of the rotor bar. Moreover, a minimum diameter of the chamfer region is suitably larger than a manufacturing-tolerances derived maximum clearance between the respective rotor groove and robot bar, if any.
-
公开(公告)号：US20240072592A1
公开(公告)日：2024-02-29
申请号：US18260347
申请日：2021-07-11
Applicant: ABB Schweiz AG
Inventor： Jori Keitamo , Aron Szucs , Ari Vartiainen , Juhani Mantere , Klas Sandholm
Abstract: An annular stator provided with axial stator slots and stator teeth formed between adjacent stator slots. Each stator slot receives a conductor of a stator winding. The stator is formed of stator sectors. Each stator sector includes two outermost stator teeth and intermediate stator teeth between the two outermost stator teeth. A width of the two outermost stator teeth is equal. Adjacent stator slots within each stator sector are distanced by a first slot pitch and adjacent stator slots belonging to different stator sectors are distanced by a second slot pitch. The first slot pitch is smaller than the second slot pitch.
-
-
-
Search Results
4
records
(took 0.013 seconds)
