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公开(公告)号：US20240333184A1
公开(公告)日：2024-10-03
申请号：US18598085
申请日：2024-03-07
Applicant: ABB Schweiz AG
Inventor： Rahul Kanchan , Omer Ikram Ul Haq , Pedro Rodriguez
CPC classification number: H02P23/04 , H02P23/0004 , H02P23/14
Abstract: A method of reducing mechanical vibrations of a motor system including an electric motor, the method including: a) receiving a vibration-related signal based on measurements by one or more sensors mounted on the electric motor, b) generating a reactive torque reference based on the vibration-related signal, and c) controlling the electric motor based on the reactive torque reference and a main torque reference to counteract the mechanical vibrations.
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公开(公告)号：US10985682B2
公开(公告)日：2021-04-20
申请号：US16749057
申请日：2020-01-22
Applicant: ABB Schweiz AG
Inventor： Panagiotis Kakosimos , Rahul Kanchan , Georgios Stamatiou
Abstract: A method of controlling a multi-phase electrical machine by means of a power converter, wherein the method includes: a) controlling the electrical machine by utilizing vector space decomposition, VSD, wherein the controlling involves releasing control of the current of a harmonic while maintaining control of the current of the fundamental, b) measuring phase currents of the electrical machine while the control of the current of the harmonic is released, c) transforming the current measurements using VSD to obtain a current signature of the harmonic, and d) determining whether a fault is present in the electrical machine or the power converter based on a comparison of the current signature with a reference current signature of the harmonic.
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公开(公告)号：US11527979B2
公开(公告)日：2022-12-13
申请号：US17107246
申请日：2020-11-30
Applicant: ABB Schweiz AG
Inventor： Panagiotis Kakosimos , Rahul Kanchan
Abstract: A method of controlling a 3n-phase electrical machine (7) by means of n power converters (3a, 3b) each being controlled by a respective controller, and each power converter (3a, 3b) being configured to power a respective set of three phases of the electrical machine (7), wherein the method for each controller comprises: a) obtaining measured currents (ia,1, ib,1, ic,1, ia,2, ib,2, ic,2) of the set of three phases of the electrical machine (7) controlled by the controller, b) estimating all currents ({circumflex over (ι)}dq, 2, {circumflex over (ι)}dq, 1) of all the other sets of three phases of the electrical machine (7), which are controlled by the other controllers, c) transforming the measured currents (ia,1, ib,1, ic,1, ia,2, ib,2, ic,2) and all the estimated currents ({circumflex over (ι)}dq,2, {circumflex over (ι)}dq,1) using vector space decomposition, VSD, to obtain a set of VSD currents, and d) controlling the corresponding power converter based on the VSD currents.
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公开(公告)号：US11038455B2
公开(公告)日：2021-06-15
申请号：US16600120
申请日：2019-10-11
Applicant: ABB Schweiz AG
Inventor： Rahul Kanchan
IPC: H02P23/26
Abstract: A method of performing scalar-based control of a motor connected to a power converter via at least one passive electrical reactance component, wherein the method includes: estimating a motor current at terminals of the motor to thereby obtain an estimated motor current, and controlling the power converter based on the estimated motor current.
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公开(公告)号：US20200295691A1
公开(公告)日：2020-09-17
申请号：US16749057
申请日：2020-01-22
Applicant: ABB Schweiz AG
Inventor： Panagiotis Kakosimos , Rahul Kanchan , Georgios Stamatiou
Abstract: A method of controlling a multi-phase electrical machine by means of a power converter, wherein the method includes: a) controlling the electrical machine by utilizing vector space decomposition, VSD, wherein the controlling involves releasing control of the current of a harmonic while maintaining control of the current of the fundamental, b) measuring phase currents of the electrical machine while the control of the current of the harmonic is released, c) transforming the current measurements using VSD to obtain a current signature of the harmonic, and d) determining whether a fault is present in the electrical machine or the power converter based on a comparison of the current signature with a reference current signature of the harmonic.
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Patent Agency Ranking
公开(公告)号：US12088225B2
公开(公告)日：2024-09-10
申请号：US17812857
申请日：2022-07-15
Applicant: ABB Schweiz AG
Inventor： Pedro Rodriguez , Rahul Kanchan , Omer Ikram Ul Haq , Qimao Liu , Ingo Stroka
CPC classification number: H02P23/0004 , G05D19/02
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 and an arrangement for controlling vibration of a variable frequency drive controlled electric machine. In the method for controlling vibration of a variable frequency drive controlled electric machine, the resonance frequency/frequencies and the stiffness are determined in a ramp up/ramp down test; amount of damping is determined in an impulse test; a mechanical transfer function is determined in a steady drive test; a vibration control model is determined utilizing said resonance frequency/frequencies, said stiffness, the amount of damping and the mechanical transfer function; and vibration is controlled utilizing the vibration control model.
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公开(公告)号：US20210167708A1
公开(公告)日：2021-06-03
申请号：US17107246
申请日：2020-11-30
Applicant: ABB Schweiz AG
Inventor： Panagiotis Kakosimos , Rahul Kanchan
Abstract: A method of controlling a 3n-phase electrical machine (7) by means of n power converters (3a, 3b) each being controlled by a respective controller, and each power converter (3a, 3b) being configured to power a respective set of three phases of the electrical machine (7), wherein the method for each controller comprises: a) obtaining measured currents (ia,1, ib,1, ic,1, ia,2, ib,2, ic,2) of the set of three phases of the electrical machine (7) controlled by the controller, b) estimating all currents ({circumflex over (ι)}dq, 2, {circumflex over (ι)}dq, 1) of all the other sets of three phases of the electrical machine (7), which are controlled by the other controllers, c) transforming the measured currents (ia,1, ib,1, ic,1, ia,2, ib,2, ic,2) and all the estimated currents ({circumflex over (ι)}dq,2, {circumflex over (ι)}dq,1) using vector space decomposition, VSD, to obtain a set of VSD currents, and d) controlling the corresponding power converter based on the VSD currents.
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公开(公告)号：US09568896B2
公开(公告)日：2017-02-14
申请号：US14143882
申请日：2013-12-30
Applicant: ABB Schweiz AG
Inventor： Pierluigi Tenca , Rahul Kanchan
Abstract: A control device for controlling an electric machine with ks windings on a stator and kr windings on a rotor, where ks+kr=n and either ks or kr may be zero, includes an input for receiving commands, an output for outputting control commands to a driver, machine modeling means for modeling behavior of the machine, and decision means connected to the input, output, and machine modeling means for determining the driver control commands. The machine modeling means models behavior of the machine through functional mapping suited for correlating sets of values of electrical and mechanical quantities, sets of values of their total or partial derivatives and/or integral functions with one another. The functional mapping includes an algorithm and/or equation based on at least one state function associated with the electromagnetic field inside the machine and/or based on at least one partial derivative of the state function.
Abstract translation: 用于控制定子上的ks绕组的电机和转子上的kr绕组的控制装置，其中ks + kr = n以及ks或kr可以为零，包括用于接收命令的输入端，用于输出控制命令的输出 驱动器，用于建模机器的行为的机器建模装置，以及连接到用于确定驾驶员控制命令的输入，输出和机器建模装置的判定装置。 机器建模意味着通过功能映射来模拟机器的行为，其适用于将电和机械量的值的集合，它们的总或偏导数和/或积分函数的值的集合彼此相关联。 功能映射包括基于与机器内部的电磁场相关联的至少一个状态函数和/或基于状态函数的至少一个偏导数的算法和/或等式。
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公开(公告)号：US20240333187A1
公开(公告)日：2024-10-03
申请号：US18604667
申请日：2024-03-14
Applicant: ABB Schweiz AG
Inventor： Omer Ikram Ul Haq , Rahul Kanchan , Pedro Rodriguez
Abstract: A method of identifying parameters of a motor system having an electric motor assembly and a control system, for vibration reduction in the electric motor assembly, the method including: a) sweeping a frequency of an oscillating reactive torque injected into the electric motor, b) determining a natural frequency of the motor system, the natural frequency being the frequency at which the oscillating reactive torque produces a maximum amplitude of a vibration-related parameter obtained based on vibration-related measurements by sensors mounted to the electric motor, c) incrementally increasing a magnitude of reactive torque oscillating at the natural frequency, injected to the electric motor, d) obtaining a magnitude of the vibration-related parameter for each magnitude of the reactive torque injected in step c), and e) determining, for each magnitude of the injected reactive torque, a gain and a phase response of the motor system, the gain being determined based on the magnitude of the injected reactive torque and the corresponding magnitude of the vibration-related parameter, and the phase response being determined based on a phase angle of the injected reactive torque and a phase angle of the corresponding vibration-related parameter.
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公开(公告)号：US20230025973A1
公开(公告)日：2023-01-26
申请号：US17812857
申请日：2022-07-15
Applicant: ABB Schweiz AG
Inventor： Pedro Rodriguez , Rahul Kanchan , Omer Ikram Ul Haq , Qimao Liu , Ingo Stroka
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 and an arrangement for controlling vibration of a variable frequency drive controlled electric machine. In the method for controlling vibration of a variable frequency drive controlled electric machine, the resonance frequency/frequencies and the stiffness are determined in a ramp up/ramp down test; amount of damping is determined in an impulse test; a mechanical transfer function is determined in a steady drive test; a vibration control model is determined utilizing said resonance frequency/frequencies, said stiffness, the amount of damping and the mechanical transfer function; and vibration is controlled utilizing the vibration control model.
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