Method and system for estimating differential inductances in an electric machine

    公开(公告)号:US09692339B2

    公开(公告)日:2017-06-27

    申请号:US15015789

    申请日:2016-02-04

    申请人: ABB Schweiz AG

    摘要: A self-commissioning method for estimating differential inductances in an electric machine, such as e.g. a synchronous reluctance machine or interior permanent magnet machine, with cross-magnetization effects is provided. The electric machine is driven with PWM voltages to explore current plurality of operating points of the currents in the electric machine while keeping the electric machine at standstill or quasi-standstill. At each operating point PWM switching voltage transients are used as a small-signal excitation. Currents of the electric machine are measured by means of oversampling, which permit the reconstruction of the waveforms including the current ripple within a PWM period caused by the PWM switching transients. Finally, the differential inductances at each operating point are determined based on the determined direct and quadrature current waveforms and voltages.

    MOTOR DRIVE APPARATUS EQUIPPED WITH FAN MOTOR PREVENTIVE MAINTENANCE FUNCTION

    公开(公告)号:US20170091672A1

    公开(公告)日:2017-03-30

    申请号:US15276882

    申请日:2016-09-27

    申请人: FANUC CORPORATION

    发明人: Taku Sasaki

    摘要: A motor drive apparatus equipped with a machine learning device comprises a fan motor and an alarm output unit which provides an indication that it is time to replace the fan motor, wherein the machine learning device comprises a state observing unit which observes the number of revolutions of the fan motor, a reward calculating unit which calculates a reward based on the time that the alarm output unit output an alarm and the time that the fan motor actually failed, an artificial intelligence which judges action value based on an observation result supplied from the state observing unit and on the reward calculated by the reward calculating unit, and a decision making unit which, based on the result of the judgment made by the artificial intelligence, determines whether or not to output an alarm from the alarm output unit.

    Method And System For Estimating Differential Inductances In An Electric Machine
    44.
    发明申请
    Method And System For Estimating Differential Inductances In An Electric Machine 有权
    电机差分电感估算方法及系统

    公开(公告)号:US20160233807A1

    公开(公告)日:2016-08-11

    申请号:US15015789

    申请日:2016-02-04

    IPC分类号: H02P21/14 H02P21/22 H02P21/00

    摘要: A self-commissioning method for estimating differential inductances in an electric machine, such as e.g. a synchronous reluctance machine or interior permanent magnet machine, with cross-magnetization effects is provided. The electric machine is driven with PWM voltages to explore current plurality of operating points of the currents in the electric machine while keeping the electric machine at standstill or quasi-standstill. At each operating point PWM switching voltage transients are used as a small-signal excitation. Currents of the electric machine are measured by means of oversampling, which permit the reconstruction of the waveforms including the current ripple within a PWM period caused by the PWM switching transients. Finally, the differential inductances at each operating point are determined based on the determined direct and quadrature current waveforms and voltages.

    摘要翻译: 一种用于估计电机中的差分电感的自调试方法,例如, 提供了具有交叉磁化效应的同步磁阻电机或内部永磁机。 电机用PWM电压驱动,以探索电机中电流的多个工作点,同时保持电机处于静止状态或准停机状态。 在每个工作点,PWM开关电压瞬变被用作小信号激励。 通过过采样来测量电机的电流,这允许重建由PWM切换瞬变引起的PWM周期内的电流纹波。 最后,根据确定的直流和正交电流波形和电压确定每个工作点的差分电感。

    INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD, AND NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUM
    45.
    发明申请
    INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD, AND NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUM 审中-公开
    信息处理设备,信息处理方法和非终端计算机可读存储介质

    公开(公告)号:US20150378333A1

    公开(公告)日:2015-12-31

    申请号:US14749718

    申请日:2015-06-25

    申请人: OMRON Corporation

    IPC分类号: G05B17/02

    摘要: A simulation unit receives a series of simulation command values, calculates and outputs a series of simulation values of a position or speed of an object. A control unit provides the simulation unit with the series of simulation command values and displays the series of simulation values. The control unit acquires a series of actual command values output by the control apparatus at predetermined intervals in control cycles for controlling the operation of the object and a series of actual values of the position or speed of the object, acquired by the control apparatus at the predetermined intervals. The control unit provides the simulation unit with the series of actual command values serving as the series of simulation command values. The control unit displays the series of actual values in a mode where the series of actual values can be compared with the series of simulation values.

    摘要翻译: 模拟单元接收一系列模拟命令值,计算并输出对象的位置或速度的一系列模拟值。 控制单元为模拟单元提供一系列模拟命令值,并显示一系列模拟值。 控制单元在控制对象的操作的控制周期中以预定间隔获取由控制装置输出的一系列实际命令值,以及控制装置在该对象的位置或速度的一系列实际值 预定间隔。 控制单元向模拟单元提供用作一系列模拟命令值的一系列实际命令值。 控制单元在一系列实际值可以与一系列模拟值进行比较的模式下显示一系列实际值。

    Modular motor drive configuration system and method
    46.
    发明授权
    Modular motor drive configuration system and method 有权
    模块化电机驱动配置系统及方法

    公开(公告)号:US09048776B2

    公开(公告)日:2015-06-02

    申请号:US13727209

    申请日:2012-12-26

    IPC分类号: H02P27/04 H05K7/14

    摘要: A motor drive system includes a power sub-assembly that comprises power electronic components and driver circuitry for controlling gate drive signals to the power electronic components. A control sub-assembly is removably mounted to the power sub-assembly and comprises control circuitry for implementing a motor control routine for control of an electric motor. In operation, all control signals originate in the control-subassembly, and are transmitted via mating connectors to the power sub-assembly for driving the motor.

    摘要翻译: 电动机驱动系统包括电力子组件,其包括电力电子部件和用于控制到电力电子部件的栅极驱动信号的驱动器电路。 控制子组件可移除地安装到电力子组件,并且包括用于实现用于控制电动机的电动机控制程序的控制电路。 在操作中,所有的控制信号都来自控制组件,并通过配对连接器传送到用于驱动电动机的电源组件。

    METHOD OF PWM REGULATION OF A CONTINUOUS CURRENT ELECTRIC MOTOR
    47.
    发明申请
    METHOD OF PWM REGULATION OF A CONTINUOUS CURRENT ELECTRIC MOTOR 有权
    连续电动机的PWM调节方法

    公开(公告)号:US20140217949A1

    公开(公告)日:2014-08-07

    申请号:US14168171

    申请日:2014-01-30

    IPC分类号: H02P23/00

    摘要: A method of PWM regulating a motor through a half-bridge drive stage includes sampling the motor current to obtain sampled values during driving intervals or during current decay intervals, and comparing a last sampled value with a current threshold. The motor is coupled in a slow decay electrical path for the duration of a current decay interval if the last sampled value does not exceed the current threshold. Otherwise the motor is coupled in a fast decay electrical path for a portion of the duration of the current decay interval, and is coupled in the slow decay electrical path for a remaining part of the duration of the same current decay interval.

    摘要翻译: 通过半桥驱动级PWM调节电动机的方法包括:在驱动间隔期间或电流衰减间隔期间对电动机电流进行采样以获得采样值,并将最后采样值与电流阈值进行比较。 如果最后一个采样值不超过当前阈值,则电机在电流衰减间隔的持续时间内以慢衰减电路连接。 否则,电动机在电流衰减区间的持续时间的一部分中以快速衰减电路连接,并且在慢衰减电路中被耦合在相同电流衰减间隔的持续时间的剩余部分中。

    CURRENT CONTROL GAIN ADJUSTING METHOD FOR PM MOTOR, CURRENT CONTROL METHOD, AND CONTROL DEVICE
    48.
    发明申请
    CURRENT CONTROL GAIN ADJUSTING METHOD FOR PM MOTOR, CURRENT CONTROL METHOD, AND CONTROL DEVICE 有权
    电动马达,电流控制方法和控制装置的电流控制增益调节方法

    公开(公告)号:US20130175970A1

    公开(公告)日:2013-07-11

    申请号:US13825194

    申请日:2011-09-28

    IPC分类号: H02P21/05

    摘要: The present invention includes a voltage applying step of applying an applied voltage including a DC component and a plurality of frequency components to a PM motor, a motor current detecting step of detecting a motor current flowing depending on the applied voltage, and a current control gain adjusting step of calculating a current control gain based on frequency characteristics of the applied voltage and the motor current. In this manner, a stable current control gain having a high current response can be adjusted within a short period of time.

    摘要翻译: 本发明包括电压施加步骤,向PM电机施加包括DC分量和多个频率分量的施加电压,马达电流检测步骤,检测根据施加电压流动的电动机电流,以及电流控制增益 基于施加电压和电动机电流的频率特性来计算电流控制增益的调整步骤。 以这种方式,可以在短时间内调节具有高电流响应的稳定的电流控制增益。