Control method and control device of permanent-magnet type synchronous motor
    1.
    发明授权
    Control method and control device of permanent-magnet type synchronous motor 有权
    永磁同步电动机的控制方法和控制装置

    公开(公告)号:US06954050B2

    公开(公告)日:2005-10-11

    申请号:US10784803

    申请日:2004-02-24

    摘要: The object of the invention is to inhibit the axial displacement caused by the insufficiency of a control response angular frequency of a frequency arithmetic unit of a synchronous motor and realize high-precision torque control also in acceleration/deceleration. To achieve the object, the axial displacement of the synchronous motor caused by the insufficiency of the control response angular frequency of the frequency arithmetic unit is estimated in consideration of the control response angular frequency and input Δθc3 (=Δθc1+Δθc2) including an estimated value Δθc2 in addition to an axial displacement operated value Δθc1 to the frequency arithmetic unit is acquired. Hereby, even if the frequency arithmetic unit has an insufficient control response angular frequency, the quantity of axial displacement which will be caused by the insufficiency is estimated as a second axial displacement signal Δθc2, is added and input. Therefore, actual axial displacement Δθc1 of the synchronous motor is stable at a value substantially close to zero.

    摘要翻译: 本发明的目的是抑制由同步电动机的频率运算单元的控制响应角频率不足引起的轴向位移,并且在加速/减速中也实现高精度的转矩控制。 为了达到该目的,考虑到控制响应角频率和输入Deltathetac 3(= Deltathetac 1 + Deltathetac 2),估计由频率运算单元的控制响应角频率不足导致的同步电动机的轴向位移,包括 获得除了轴向位移操作值Deltathetac 1之外的估计值Deltathetac 2到频率运算单元。 因此,即使频率运算单元具有不足的控制响应角频率,也可以将由不足引起的轴向位移量估计为第二轴向位移信号Deltathetac 2并被输入。 因此,同步电动机的实际轴向位移Deltathetac 1在基本上接近于零的值下是稳定的。

    Motor drive system for AC motors
    2.
    发明授权
    Motor drive system for AC motors 失效
    交流电机电机驱动系统

    公开(公告)号:US07064514B2

    公开(公告)日:2006-06-20

    申请号:US10781745

    申请日:2004-02-20

    IPC分类号: H02P27/04

    CPC分类号: H02P21/00 H02P21/24

    摘要: A motor drive system without any portion for directly detecting the rotor position, rotation speed and motor phase currents, capable of realizing a high-performance variable speed drive even at high carrier frequencies. When detecting a current from a DC power supply of an inverter for driving a motor, applied voltages and frequencies to the motor are controlled based on sampled values by sampling a current flowing as intermittent pulses in the vicinity of each power conduction time period.

    摘要翻译: 没有任何部分用于直接检测转子位置,转速和电动机相电流的电动机驱动系统,即使在高载波频率下也能实现高性能变速驱动。 当检测来自用于驱动电动机的逆变器的直流电源的电流时,通过对在每个电力传导时间周期附近的间歇脉冲流动的电流进行采样,基于采样值来控制对电动机施加的电压和频率。

    Synchronous moter driving apparatus
    3.
    发明申请
    Synchronous moter driving apparatus 有权
    同步电机驱动装置

    公开(公告)号:US20060113948A1

    公开(公告)日:2006-06-01

    申请号:US11206211

    申请日:2005-08-18

    IPC分类号: H02P1/46

    摘要: A synchronous motor driving apparatus having a power converter which applies AC variable voltages having variable frequency to a synchronous motor includes a pulsating current application unit for applying pulsating current to the synchronous motor and a magnetic pole position presumption unit. The magnetic pole position presumption unit detects two current values ΔIdcp1 and ΔIdcp2 on the positive side and two current values ΔIdcn1 and ΔIdcn2 on the negative side of the pulsating current and presumes the magnetic pole position of the synchronous motor on the basis of difference between change rates of ΔIdcp1→ΔIdcp2 and ΔIdcp1→ΔIdcp2.

    摘要翻译: 具有向同步电动机施加可变频率的交流可变电压的电力转换器的同步电动机驱动装置包括用于向同步电动机施加脉动电流的脉动电流施加单元和磁极位置推定单元。 磁极位置推测单元在脉动电流的负侧检测正极侧的两个电流值DeltaIdcp 1和DeltaIdcp 2,并且在脉动电流的负侧检测两个电流值DeltaIdcn 1和DeltaIdcn 2,并且基于同步电动机的磁极位置 DeltaIdcp 1 - > DeltaIdcp 2和DeltaIdcp 1 - > DeltaIdcp 2的变化率之间的差异。

    Driving systems of AC motor
    4.
    发明授权
    Driving systems of AC motor 有权
    交流电机驱动系统

    公开(公告)号:US07030589B2

    公开(公告)日:2006-04-18

    申请号:US10787435

    申请日:2004-02-27

    IPC分类号: H02P27/04

    摘要: An AC motor control apparatus that is applicable to commonly used PM motors and capable of detecting the magnetic pole position with simple algorithm. The AC motor control apparatus comprises an inverter for applying arbitrary AC power to an AC motor and a controller for sending a control signal to the inverter. The controller comprises a ripple current generator for supplying a ripple current to the AC motor and a magnetic pole position estimator. The magnetic pole position estimator observes at least two current values of the ripple current for both positive and negative sides of the ripple current to estimate the magnetic pole position of the AC motor.

    摘要翻译: 一种适用于常用PM电机并能够用简单算法检测磁极位置的交流电动机控制装置。 AC电动机控制装置包括用于向AC电动机施加任意AC电力的逆变器和用于向逆变器发送控制信号的控制器。 控制器包括用于向交流电动机提供纹波电流的纹波电流发生器和磁极位置估计器。 磁极位置估计器观察纹波电流的正侧和负侧纹波电流的至少两个电流值,以估计交流电机的磁极位置。

    Synchronous motor driving apparatus
    5.
    发明授权
    Synchronous motor driving apparatus 有权
    同步电机驱动装置

    公开(公告)号:US07276876B2

    公开(公告)日:2007-10-02

    申请号:US11206211

    申请日:2005-08-18

    IPC分类号: H02P27/04

    摘要: A synchronous motor driving apparatus having a power converter which applies AC variable voltages having variable frequency to a synchronous motor includes a pulsating current application unit for applying pulsating current to the synchronous motor and a magnetic pole position presumption unit. The magnetic pole position presumption unit detects two current values ΔIdcp1 and ΔIdcp2 on the positive side and two current values ΔIdcn1 and ΔIdcn2 on the negative side of the pulsating current and presumes the magnetic pole position of the synchronous motor on the basis of difference between change rates of ΔIdcp1→ΔIdcp2 and ΔIdcp1→ΔIdcp2.

    摘要翻译: 具有向同步电动机施加可变频率的交流可变电压的电力转换器的同步电动机驱动装置包括用于向同步电动机施加脉动电流的脉动电流施加单元和磁极位置推定单元。 磁极位置推测单元在脉动电流的负侧检测正极侧的两个电流值DeltaIdcp 1和DeltaIdcp 2,并且在脉动电流的负侧检测两个电流值DeltaIdcn 1和DeltaIdcn 2,并且基于同步电动机的磁极位置 DeltaIdcp 1 - > DeltaIdcp 2和DeltaIdcp 1 - > DeltaIdcp 2的变化率之间的差异。

    Inverter apparatus operatable over extended frequency range while suppressing output error
    8.
    发明授权
    Inverter apparatus operatable over extended frequency range while suppressing output error 有权
    变频器在扩展频率范围内可操作,同时抑制输出误差

    公开(公告)号:US06169670A

    公开(公告)日:2001-01-02

    申请号:US09543580

    申请日:2000-04-05

    IPC分类号: H02M3335

    CPC分类号: H02M7/53803 H02M7/5395

    摘要: An inverter apparatus operatable over an extended output frequency range having an increased upper limit with error contained in the output voltage being suppressed by eliminating dispersions of PWM pulse signals. A PWM command pulse signal and an output voltage detection signal derived from the output of the inverter are compared straightforwardly with each other for determining difference therebetween on the basis of which error contained in the inverter output voltage is canceled. An isolation device for isolating electrically a low-voltage-rated control circuitry and a high-voltage-rated main circuitry from each other is inserted between a PWM command pulse signal generating circuit and a pulse width correcting circuit.

    摘要翻译: 可以通过消除PWM脉冲信号的分散来抑制具有增加的上限的扩展输出频率范围的逆变器装置,其中包含在输出电压中的误差被抑制。 基于逆变器输出电压中包含的误差被取消,PWM指令脉冲信号和从逆变器的输出得到的输出电压检测信号直接相互比较,以确定它们之间的差异。 用于将低电压额定控制电路和高压额定主电路彼此隔离的隔离装置插入在PWM指令脉冲信号发生电路和脉冲宽度校正电路之间。