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    • 8. 发明申请
    • Motor Drive Device and Control Method Thereof
    • 电机驱动装置及其控制方法
    • US20090160380A1
    • 2009-06-25
    • US12085181
    • 2006-12-04
    • Kenji YamadaShunsuke OyamaKenji ItagakiShinichi SugaiKiyoe Ochiai
    • Kenji YamadaShunsuke OyamaKenji ItagakiShinichi SugaiKiyoe Ochiai
    • H02P6/10H02P27/00
    • H02P6/10B60L15/20B60L2210/14B60L2210/20H02P23/04Y02T10/644Y02T10/645Y02T10/7225Y02T10/725Y02T10/7275
    • A torque command (Tht) used in the calculation of a voltage command (Vht) of a voltage-up converter is generated by adding an upper limit value value (Tc_max) of damping control that can be set by a motor drive device with a target drive torque (Tbt). Accordingly, the torque command (Tht) exhibits a waveform absent of variation, differing from a torque command (Tcmd) that is generated by adding damping torque generated based on revolution count variation component with the target drive torque (Tbt). Therefore, the voltage command (Vht) calculated based on the torque command (Tht) exhibits a waveform absent of variation. Accordingly, increase in current passing through the voltage-up converter caused by variation in the voltage command (Vht) can be suppressed. As a result, power loss at the voltage-up converter is reduced and operation of the motor at high efficiency can be realized. Further, the voltage-up converter can be protected from element fracture.
    • 在升压转换器的电压指令(Vht)的计算中使用的转矩指令(Tht)通过将电动机驱动装置能够设定的阻尼控制的上限值(Tc_max)与目标 驱动扭矩(Tbt)。 因此,扭矩指令(Tht)表现出不存在变化的波形,与通过将基于转数计数变化分量生成的阻尼扭矩与目标驱动转矩(Tbt)相加而产生的转矩指令(Tcmd)不同。 因此,基于转矩指令(Tht)计算出的电压指令(Vht)表示没有变动的波形。 因此,可以抑制由电压指令(Vht)的变化引起的通过升压转换器的电流的增加。 结果,升压转换器的功率损耗减小,电动机的高效率运转得以实现。 此外,可以保护升压转换器免受元件断裂。