公开(公告)号：US12107522B2

公开(公告)日：2024-10-01

申请号：US18576699

申请日：2022-07-07

申请人： TAU MOTORS, INC.

发明人： Walter Wesley Pennington, III ,  Ethan Bagget Swint ,  Anthony Da Costa ,  Matthew J. Rubin

IPC分类号： H02P21/14 ,  H02P6/32 ,  H02P6/34 ,  H02P21/22

CPC分类号： H02P21/14 ,  H02P6/32 ,  H02P6/34 ,  H02P21/22 ,  H02P2207/07

摘要： Systems and methods are provided for controlling and simulating a motor. An electronic motor controller determines present motor information and a motor control parameter set based on the present motor information and a rotating reference frame of the motor. The rotating reference frame has independent input channels that decouple an intended output response in a stator D-axis component and a rotor field (R) component of a direct-quadrature-null-rotor (DQNR) reference frame. The electronic motor controller further controls the motor based on the motor control parameter set.

公开(公告)号：US11927464B2

公开(公告)日：2024-03-12

申请号：US17098100

申请日：2020-11-13

申请人： Grundfos Holding A/S

发明人： Peter Elvekjær ,  Jesper Thørring Damgaard ,  Carsten Christensen

IPC分类号： F04D15/00 ,  F02D41/14 ,  G01F1/05 ,  G06N3/044 ,  G06N3/08 ,  H02P6/34 ,  H02P25/089 ,  H02P29/60

CPC分类号： G01F1/05 ,  F02D41/1401 ,  F04D15/0088 ,  G06N3/044 ,  G06N3/08 ,  H02P6/34 ,  H02P25/089 ,  H02P29/60 ,  F04B2205/09

摘要： Computer-implemented methods are disclosed for determining a flow rate of fluid flow at a target time through a pump, such as a centrifugal pump, the pump being driven by a pump motor. An illustrative method includes, in some aspects: receiving at least one set of previous parameter values including a first previous parameter value indicative of a first operational parameter of the pump motor at a previous time, earlier than the target time, and a second previous parameter value indicative of a second operational parameter of the pump motor at the previous time, and receiving a current set of parameter values including a first current parameter value indicative of the first operational parameter of the pump motor at the target time and a second current parameter value indicative of the second operational parameter of the pump motor at the target time.

公开(公告)号：US20220190757A1

公开(公告)日：2022-06-16

申请号：US17607257

申请日：2020-03-18

申请人： Robert Bosch GmbH

发明人： Stefan Gering ,  Maximilian Manderla

IPC分类号： H02P6/34 ,  H02K3/28 ,  H02K11/33

摘要： The invention relates to a method for operating an electric machine (1), in particular of a motor vehicle, that has a stator (4) and a rotor (2), wherein the stator (4) has a stator winding (5) having at least three phases (U, V, W), and wherein the rotor is arranged/arrangeable on a rotor shaft (3), wherein a time-invariant differential equation modelling the machine (1) is taken as a basis for ascertaining a desired current value (Idesired,fl) for the stator winding (5) for producing a required torque and/or a required rotation speed, wherein the desired current value (Idesired,fl) is compared with an actual current value (Iactual,fl) of the stator winding (5), which actual current value corresponds to electric phase currents (IU, IV, IW) flowing through the phases (U, V, W), and wherein the comparison is taken as a basis for passing current through the phases (U, V, W) such that a difference from the actual current value (Iactual,fl) to the desired current value (Idesired,fl) is reduced. There is provision for the time-invariant differential equation to be ascertained on the basis of a periodic, linear differential equation by means of a Floquet transformation.

公开(公告)号：US11146191B2

公开(公告)日：2021-10-12

申请号：US16485782

申请日：2018-01-30

申请人： OMRON Corporation

发明人： Kentaro Urabe ,  Mamoru Egi

IPC分类号： H02P6/34 ,  G06F30/20

摘要： A simulation device includes: a simulation system including a predetermined feedback system having at least a predetermined control block structure corresponding to a predetermined device-side configuration; a holding unit holding impulse response information for calculation that is information on an impulse response relating to the predetermined device-side configuration; a first response calculation unit calculating a time response of the predetermined device-side configuration to a predetermined input value by convolution processing using the impulse response information for calculation and the predetermined input value; and a second response calculation unit calculating a response of the simulation system to a command value input to the simulation system by using the time response of the predetermined device-side configuration calculated by the first response calculation unit. According to this configuration, simulation accuracy of a control system is improved.

公开(公告)号：US11098967B2

公开(公告)日：2021-08-24

申请号：US16808803

申请日：2020-03-04

申请人： Prime Datum, Inc.

发明人： Patrick M. Rollins ,  George Lucas

IPC分类号： F28F27/00 ,  F04D19/00 ,  F04D27/00 ,  F28F25/10 ,  H02P29/60 ,  F04D29/66 ,  H02P6/34 ,  A61B17/04 ,  F04D25/06 ,  F28C1/00 ,  H02P27/06

摘要： A drive system for driving a fan in a wet cooling tower, wherein the fan has a fan hub and fan blades attached to the fan hub. The drive system has a high-torque, low speed permanent magnet motor having a motor casing, a stator and a rotatable shaft, wherein the rotatable shaft is configured for connection to the fan hub. The drive system includes a variable frequency drive device to generate electrical signals that effect rotation of the rotatable shaft of the motor in order to rotate the fan.

公开(公告)号：US10598448B2

公开(公告)日：2020-03-24

申请号：US16055062

申请日：2018-08-04

申请人： Prime Datum, Inc.

发明人： Patrick M. Rollins ,  George Lucas

IPC分类号： F28F27/00 ,  F04D19/00 ,  F04D27/00 ,  F28F25/10 ,  H02P29/60 ,  F04D29/66 ,  H02P6/34 ,  A61B17/04 ,  F04D25/06 ,  F28C1/00 ,  H02P27/06

摘要： A drive system for driving a fan in a wet cooling tower, wherein the fan has a fan hub and fan blades attached to the fan hub. The drive system has a high-torque, low speed permanent magnet motor having a motor casing, a stator and a rotatable shaft, wherein the rotatable shaft is configured for connection to the fan hub. The drive system includes a variable frequency drive device to generate electrical signals that effect rotation of the rotatable shaft of the motor in order to rotate the fan.

公开(公告)号：US20200007067A1

公开(公告)日：2020-01-02

申请号：US16567570

申请日：2019-09-11

申请人： Regal Beloit America, Inc.

发明人： Brian L. Beifus ,  Paul Nathanael Selking ,  Vijay Dayaldas Gurudasani ,  Michael R. Koller

IPC分类号： H02P29/024 ,  H02P6/34 ,  G05B23/02 ,  H02P29/02 ,  H02P6/06

摘要： A motor controller for an electric motor includes an enclosure and a processing device, memory device, and wireless transmitter disposed within the enclosure. The processing device is configured to control the electric motor and collect operating information from the electric motor during operation of the electric motor. The memory device is communicatively coupled to the processing device. The memory device is configured to receive and store the operating information collected during operation of the electric motor. The wireless transmitter is communicatively coupled to the processing device and the memory device. The wireless transmitter is configured to transmit the operating information stored on the memory device to a computing device disposed remotely from the electric motor.

公开(公告)号：US10516352B2

公开(公告)日：2019-12-24

申请号：US15922342

申请日：2018-03-15

申请人： Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Bamberg

发明人： Benedikt Dremel ,  Michael Morgenroth ,  Benedikt Nagler

IPC分类号： H02P6/24 ,  H02P6/08 ,  H02P6/34 ,  H02P29/032 ,  F16H61/32 ,  H02H7/125

摘要： A brushless electric motor of a motor vehicle, in particular an ancillary unit, including a first phase winding, which is connected in series to a first semiconductor switch, and including a second phase winding, which is connected in series to a second semiconductor switch. The brushless electric motor includes a test circuit, which is connected in parallel to the first semiconductor switch and the second semiconductor switch. A method is also provided for operating a brushless electric motor, and also provided is a drive train actuator of a motor vehicle.

公开(公告)号：US10511246B2

公开(公告)日：2019-12-17

申请号：US16137041

申请日：2018-09-20

申请人： Wenzhou University

发明人： Yuxing Dai ,  Xiukai Ruan ,  Qibo Cai ,  Kelu Wu

IPC分类号： H02P21/32 ,  H02P6/34 ,  H02P21/34 ,  H02P6/20 ,  H02P21/22

摘要： An initial rotor position detection device based on a permanent-magnet synchronous motor, including a host computer, a real-time simulation system, and a control system, where the real-time simulation system is connected to the control system, for determining an encoder pulse signal according to the model parameter of the permanent-magnet synchronous motor, the model parameter of the inverter, and a PWM pulse wave generated by the control system; and the control system is connected to the real-time simulation system, for using a binary search algorithm to determine an initial rotor angle of the permanent-magnet synchronous motor according to the encoder pulse signal sent by the real-time simulation system. A comprehensive closed-loop test circuit can be achieved by setting a host computer, a real-time simulation system, and a control system, and a used binary search algorithm can effectively and quickly detect an initial rotor position of a permanent-magnet synchronous motor.

公开(公告)号：US10425028B2

公开(公告)日：2019-09-24

申请号：US15940968

申请日：2018-03-30

申请人： KABUSHIKI KAISHA YASKAWA DENKI

发明人： Yasufumi Yoshiura ,  Yasuhiko Kaku ,  Shouta Kawahara

IPC分类号： H02P7/00 ,  H02P21/14 ,  H02P29/40 ,  H02P21/22 ,  H02P25/06 ,  H02P27/02 ,  H02P23/20 ,  H02P6/34

摘要： A motor control device includes output command calculation circuitry and inertial load value calculation circuitry. The output command calculation circuitry is configured to calculate a motor output command, based on a motor acceleration command and an inertial load value indicative of a magnitude of inertia of a load on a motor. The inertial load value calculation circuitry is configured to calculate an estimated inertial load value with an adaptive observer, based on the motor output command and a motor actual output to be output from the motor, and configured to calculate the inertial load value, based on the estimated inertial load value.