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64 条记录 (耗时 0.015 秒)

    DETERMINATIONS OF STATIC LOAD TORQUE AT STANDSTILL
    1.
    发明公开
    DETERMINATIONS OF STATIC LOAD TORQUE AT STANDSTILL 审中-公开

    公开(公告)号：EP4346089A1

    公开(公告)日：2024-04-03

    申请号：EP23200121.4

    申请日：2023-09-27

    申请人： Schneider Toshiba Inverter Europe SAS

    发明人： COMBES, Pascal ,  KOTEICH, Mohamad

    IPC分类号： H02P21/14 ,  H02P25/022 ,  H02P21/20

    摘要： Examples include a method for determining a static load torque at standstill applied to a salient pole synchronous motor. The method comprises fixing a first non-zero torque-producing current component and controlling motor speed using a speed loop regulation of a first regulated component to reach a first zero motor speed steady state corresponding to the fixed first non-zero current component, the motor being subjected to the specific static load torque. The method further comprises controlling motor speed using a speed loop regulation of a second regulated component to reach a second zero motor speed steady state corresponding to a fixed second non-zero torque-producing current component, the motor being subjected to the specific static load torque, the first non-zero current component and the second non-zero current component corresponding to different values. The load torque is estimated as a function of components of the first and second zero motor speed steady states.

    APPARATUS AND METHOD FOR DETERMINING MECHANICAL PARAMETERS OF AN ELECTRIC MOTOR AND LOAD
    4.
    发明公开
    APPARATUS AND METHOD FOR DETERMINING MECHANICAL PARAMETERS OF AN ELECTRIC MOTOR AND LOAD 审中-公开

    公开(公告)号：EP4274090A1

    公开(公告)日：2023-11-08

    申请号：EP23171061.7

    申请日：2023-05-02

    申请人： NXP USA, Inc.

    发明人： Musak, Marek ,  Fedor, Tomas ,  Stulrajter, Marek

    IPC分类号： H02P21/18 ,  H02P21/20

    摘要： A method, system, and apparatus are provided for determining mechanical characteristics of an electric motor and mechanical load with a speed signal modulator, FOC current loop, sensor-less rotor speed estimator, and speed signal demodulator which are configured to provide a q-axis AC reference current, q-axis DC reference current, estimated maximum AC rotor speed, estimated DC rotor speed, estimated phase angle of the AC rotor speed component, and torque constant to a mechanical characteristics estimator which is configured to determine a plurality of load torque parameters for the electric motor and mechanical load which include a combined moment of inertia parameter, a combined static friction, and a combined viscous friction coefficient parameter.

    CONTROLLING A MULTIPLE-SET ELECTRICAL MACHINE
    6.
    发明公开
    CONTROLLING A MULTIPLE-SET ELECTRICAL MACHINE 审中-公开
    控制多台电动机

    公开(公告)号：EP3258594A1

    公开(公告)日：2017-12-20

    申请号：EP16175055.9

    申请日：2016-06-17

    申请人： Siemens Aktiengesellschaft

    发明人： Azar, Ziad ,  Thomas, Arwyn ,  Xia, Zhen Ping ,  Owen, Richard ,  Wu, Zhan-Yuan

    IPC分类号： H02P25/22 ,  H02P21/20 ,  H02P29/50 ,  H02P9/02

    CPC分类号： H02P25/22 ,  H02P9/02 ,  H02P21/20 ,  H02P29/50 ,  H02P2101/15

    摘要： It is described a method for controlling an electrical machine (611) having a rotor with permanent magnets and having a stator system (610, 612) with at least a first set (613, 615, 617) and a second set (614, 616, 618) of stator windings under one or two system operation, the method comprising: determining a primary first magnetic flux (Ψ d1 (I d1 ), Ψ q1 (I d1 ) , Ψ d1 (I q1 ), Ψ q1 (I q1 )) generated by the first set of stator windings due to a first current in the first set of stator windings; determining a secondary second magnetic flux (Ψ d2 (I d1 ), Ψ q2 (I d1 ), Ψ d2 (I q1 ) , Ψ q2 (I q1 )) generated by the second set of stator windings due to the first current in the first set of stator windings; determining a total magnetic flux (Ψ d , Ψ q ) based on the primary first magnetic flux, the secondary second magnetic flux and a magnetic flux Ψ PM of the permanent magnets; and controlling the electrical machine based on the total magnetic flux.

    摘要翻译： 描述了用于控制具有带永磁体的转子并且具有定子系统（610,612）的电机（611）的方法，所述定子系统具有至少第一组（613,615,617）和第二组（614,616） （Id1），Ψq1（Id1），Ψd1（Iq1），Ψq1（Iq1）），所述第一组磁通量（Ψd1（Id1） 由于第一组定子绕组中的第一电流而导致的定子绕组; 确定由所述第一组定子绕组中的所述第一电流产生的由所述第二组定子绕组产生的次级第二磁通量（Ψd2（Id1），Ψq2（Id1），Ψd2（Iq1），Ψq2（Iq1））; 基于永磁体的初级第一磁通量，次级第二磁通量和磁通量ΨPM来确定总磁通量（Ψd，Ψq） 并基于总磁通量来控制电机。

    BUSBAR CURRENT CONTROL METHOD, APPARATUS AND SYSTEM, AND STORAGE MEDIUM
    9.
    发明公开
    BUSBAR CURRENT CONTROL METHOD, APPARATUS AND SYSTEM, AND STORAGE MEDIUM 审中-公开

    公开(公告)号：EP4307558A1

    公开(公告)日：2024-01-17

    申请号：EP22831379.7

    申请日：2022-04-22

    申请人： Zhejiang Geely Holding Group Co., Ltd. ,  Geely Automobile Research Institute (Ningbo) Co., Ltd

    发明人： YE, Xianjun ,  RUAN, Ou

    IPC分类号： H02P29/024 ,  H02P23/14 ,  H02P27/06 ,  H02P21/14 ,  H02P21/20 ,  B60L15/04

    摘要： Disclosed are a bus (202) current control method, device, system and storage medium. The method includes: obtaining a data set including a motor (201) speed corresponding to a current time point, an actual current and an actual torque; determining a limit current at the current time point according to the motor (201) speed; in response to the limit current being less than the actual current, determining a deviation value at the current time point according to the limit current and the actual current; determining a target requested torque based on the deviation value and the actual torque; and determining the bus (202) current according to the target requested torque. Therefore, the bus (202) current can be limited within a safe range by dynamically adjusting the limit current and the target requested torque, which can effectively control the bus (202) current and ensure the effectiveness of components of the vehicle (10).