Method for detecting rotor angle of DC brushless motor and controller of DC brushless motor
    1.
    发明授权
    Method for detecting rotor angle of DC brushless motor and controller of DC brushless motor 有权
    直流无刷电机转子角度检测方法及直流无刷电机控制方法

    公开(公告)号:US07400101B2

    公开(公告)日:2008-07-15

    申请号:US11246242

    申请日:2005-10-11

    IPC分类号: H02K29/00

    CPC分类号: H02P21/0003

    摘要: A method and an apparatus accurately detect a rotor angle of a DC brushless motor by using a first-order difference of a detected value of a phase current. A periodic signal causing the total sum of output voltages in three control cycles to become zero is superposed over a drive voltage under current feedback control. The drive voltage is held at a constant level during the three control cycles. The phase difference between an actual value and an estimated value of a rotor angle is calculated, using the first-order differential current in each control cycle, and the estimated value of the rotor angle is calculated by follow-up computation of an observer, using the phase difference.

    摘要翻译: 一种方法和装置通过使用相电流的检测值的一阶差来精确地检测直流无刷电动机的转子角度。 在三个控制周期内使输出电压的总和变为零的周期信号在电流反馈控制下的驱动电压上叠加。 在三个控制周期期间,驱动电压保持恒定。 使用每个控制周期中的一阶差分电流来计算实际值和转子角度的估计值之间的相位差,并且通过观察者的跟踪计算来计算转子角度的估计值,使用 相位差。

    Method for detecting rotor angle of DC brushless motor and controller of DC brushless motor
    2.
    发明申请
    Method for detecting rotor angle of DC brushless motor and controller of DC brushless motor 有权
    直流无刷电机转子角度检测方法及直流无刷电机控制方法

    公开(公告)号:US20060082335A1

    公开(公告)日:2006-04-20

    申请号:US11246242

    申请日:2005-10-11

    IPC分类号: H02P7/06

    CPC分类号: H02P21/0003

    摘要: A method and an apparatus accurately detect a rotor angle of a DC brushless motor by using a first-order difference of a detected value of a phase current. A periodic signal causing the total sum of output voltages in three control cycles to become zero is superposed over a drive voltage under current feedback control. The drive voltage is held at a constant level during the three control cycles. The phase difference between an actual value and an estimated value of a rotor angle is calculated, using the first-order differential current in each control cycle, and the estimated value of the rotor angle is calculated by follow-up computation of an observer, using the phase difference.

    摘要翻译: 一种方法和装置通过使用相电流的检测值的一阶差来精确地检测直流无刷电动机的转子角度。 在三个控制周期内使输出电压的总和变为零的周期信号在电流反馈控制下的驱动电压上叠加。 在三个控制周期期间,驱动电压保持恒定。 使用每个控制周期中的一阶差分电流来计算实际值和转子角度的估计值之间的相位差,并且通过观察者的跟踪计算来计算转子角度的估计值,使用 相位差。

    Apparatus and method for controlling charging and discharging of an energy storage device
    4.
    发明授权
    Apparatus and method for controlling charging and discharging of an energy storage device 有权
    一种用于控制储能装置的充放电的装置和方法

    公开(公告)号:US07102330B2

    公开(公告)日:2006-09-05

    申请号:US10848005

    申请日:2004-05-19

    IPC分类号: H02J7/00

    摘要: An apparatus and method for controlling charging and discharging of an energy storage device. If the charging voltage that is applied exceeds a restriction determining voltage, the power value at that time is held as the charging power upper limit value. In addition, by multiplying a restriction coefficient by the charging power upper limit value while gradually reducing the restriction coefficient until the voltage drops below a restriction removal determining voltage. By setting its result as a control target value of the charging power, the charging power is gradually restricted. In contrast, if the applied charging voltage drops below the restriction removal determining voltage, the charging power is conversely gradually restored to its original state using a control target value obtained by multiplying the restriction coefficient by the charging power upper limit value while gradually increasing the restriction coefficient until the voltage equals or goes above the restriction determining voltage.

    摘要翻译: 一种用于控制储能装置的充放电的装置和方法。 如果施加的充电电压超过限制确定电压,则将此时的功率值保持为充电功率上限值。 此外,通过将限制系数乘以充电功率上限值,同时逐渐减小限制系数,直到电压降低到限制消除确定电压以下。 通过将其结果设定为充电电力的控制目标值,逐渐限制充电功率。 相反,如果施加的充电电压下降到限制去除判定电压以下,则使用通过将限制系数乘以充电功率上限值而获得的控制目标值,逐渐增加限制,使充电功率相反地逐渐恢复到其原始状态 直到电压等于或超过限制确定电压。