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    • 71. 发明申请
    • CONTROL DEVICE FOR ROTATING ELECTRICAL MACHINE
    • 旋转电机控制装置
    • US20160248359A1
    • 2016-08-25
    • US15018273
    • 2016-02-08
    • DENSO CORPORATION
    • Kazutoshi SHIOMIHideaki NAKAYAMAKiyoshi FUJII
    • H02P21/22
    • H02P25/022H02P9/08H02P25/024
    • A rotating electrical machine has a rotor having a field winding and a stator having an armature winding. A control device adjusts a field current flowing in the field winding and an armature current flowing in the armature winding. The armature current flowing in the armature winding is expressed by using a current vector having a d-axis current and a q-axis current in a d-q coordinate system. In a case in which the control device increases the d-axis current to generate a magnetic flux in a direction which is opposite to a direction to generate a magnetic flux by a field current, the control device gradually reduces the d-axis current during a predetermined period of time after increasing the d-axis current in the direction opposite to the direction to generate the magnetic flux by the field current.
    • 旋转电机具有具有励磁绕组的转子和具有电枢绕组的定子。 控制装置调节在励磁绕组中流动的励磁电流和在电枢绕组中流动的电枢电流。 通过在d-q坐标系中使用具有d轴电流和q轴电流的电流矢量来表示在电枢绕组中流动的电枢电流。 在控制装置增加d轴电流以产生与通过励磁电流产生磁通的方向相反的方向产生磁通的情况下,控制装置在a轴期间逐渐减小d轴电流 在与通过励磁电流产生磁通的方向相反的方向上增加d轴电流之后的预定时间段。
    • 79. 发明授权
    • Method for suppressing a speed fluctuation, a control apparatus and a compressor control system
    • 用于抑制速度波动的方法,控制装置和压缩机控制系统
    • US09577561B2
    • 2017-02-21
    • US14758469
    • 2014-07-01
    • GUANGDONG MEIZHI COMPRESSOR CO., LTD.
    • Siqing LiaoXinjie RenWanjie SongWeimin XiangJijiang YuCheng ZhangHong GuoJingtao Yang
    • H02P23/04H02P21/05H02P25/02
    • H02P23/04H02P21/05H02P25/022H02P25/024
    • A method for suppressing a speed fluctuation of a permanent magnet synchronous motor is provided in the present disclosure, including: obtaining a target speed ω_ref, a feedback speed, a fluctuation speed Δω, a q-axis inductance Lq and a permanent magnet flux linkage φf of the permanent magnet synchronous motor; performing a PI adjusting on Δω to obtain a q-axis reference current Iq_ref, and obtaining a q-axis target voltage U*q according to Iq_ref, ω_ref, Δω and φf; performing a PI control on a q-axis actual voltage according to U*q to obtain a q-axis compensation current Iq_add; obtaining a d-axis target voltage U*d according to Iq_ref, Iq_add, ω_ref, Δω and Lq; performing a PI control on a d-axis actual voltage according to U*d to obtain a d-axis compensation current Id_add; superposing Iq_add and Iq_ref to perform a feedforward compensation on a q-axis current and superposing Id_add and the d-axis reference current to perform a feedforward compensation on a d-axis current.
    • 本发明公开了一种用于抑制永磁同步电机的速度波动的方法,包括:获得目标速度ω_ref,反馈速度,变动速度Δω,q轴电感Lq和永磁体磁链φf 的永磁同步电机; 对Δω执行PI调整,得到q轴基准电流Iq_ref,根据Iq_ref,ω_ref,Δω,φf得到q轴目标电压U * q; 根据U * q对q轴实际电压进行PI控制,得到q轴补偿电流Iq_add; 根据Iq_ref,Iq_add,ω_ref,Δω和Lq获得d轴目标电压U * d; 根据U * d对d轴实际电压执行PI控制以获得d轴补偿电流Id_add; 叠加Iq_add和Iq_ref以对q轴电流执行前馈补偿,并叠加Id_add和d轴参考电流,以对d轴电流执行前馈补偿。