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公开(公告)号：US08497646B2
公开(公告)日：2013-07-30
申请号：US13144040
申请日：2009-02-23
CPC分类号： H02P27/085 , B60L11/1803 , H02M2007/53876 , H02P21/0003 , H02P21/22 , Y02T10/643 , Y02T10/7005
摘要： An AC electric motor, an inverter and a controller are mounted on an electric powered vehicle. The controller includes a voltage deviation calculating unit, a modulation factor calculating unit, and a mode switching determination unit. The voltage deviation calculating unit calculates a voltage deviation between a first voltage command when the rectangular wave voltage control is executed and a second voltage command when pulse width modulation control is executed, by inputting a current deviation to a voltage equation of the AC electric motor. Modulation factor calculating unit calculates the modulation factor based on the first voltage command and the voltage deviation. The mode switching determination unit determines whether or not control mode of the AC electric motor from the rectangular wave voltage control to the pulse width modulation control is necessary, based on the modulation factor.
摘要翻译： AC电动机，逆变器和控制器安装在电动车辆上。 控制器包括电压偏差计算单元，调制因子计算单元和模式切换确定单元。 电压偏差计算单元通过向电动马达的电压方程式输入电流偏差来计算执行矩形波电压控制时的第一电压指令与执行脉宽调制控制时的第二电压指令之间的电压偏差。 调制因子计算单元基于第一电压指令和电压偏差来计算调制因子。 模式切换确定单元基于调制因数来确定是否需要从矩形波电压控制到脉冲宽度调制控制的AC电动机的控制模式。
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公开(公告)号：US20110273125A1
公开(公告)日：2011-11-10
申请号：US13144040
申请日：2009-02-23
IPC分类号： H02P7/29
CPC分类号： H02P27/085 , B60L11/1803 , H02M2007/53876 , H02P21/0003 , H02P21/22 , Y02T10/643 , Y02T10/7005
摘要： An AC electric motor, an inverter and a controller are mounted on an electric powered vehicle. The controller includes a voltage deviation calculating unit, a modulation factor calculating unit, and a mode switching determination unit. The voltage deviation calculating unit calculates a voltage deviation between a first voltage command when the rectangular wave voltage control is executed and a second voltage command when pulse width modulation control is executed, by inputting a current deviation to a voltage equation of the AC electric motor. Modulation factor calculating unit calculates the modulation factor based on the first voltage command and the voltage deviation. The mode switching determination unit determines whether or not control mode of the AC electric motor from the rectangular wave voltage control to the pulse width modulation control is necessary, based on the modulation factor.
摘要翻译： AC电动机，逆变器和控制器安装在电动车辆上。 控制器包括电压偏差计算单元，调制因子计算单元和模式切换确定单元。 电压偏差计算单元通过向电动马达的电压方程式输入电流偏差来计算执行矩形波电压控制时的第一电压指令与执行脉宽调制控制时的第二电压指令之间的电压偏差。 调制因子计算单元基于第一电压指令和电压偏差来计算调制因子。 模式切换确定单元基于调制因数来确定是否需要从矩形波电压控制到脉冲宽度调制控制的AC电动机的控制模式。
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公开(公告)号：US20100176757A1
公开(公告)日：2010-07-15
申请号：US12685006
申请日：2010-01-11
IPC分类号： H02P6/10
CPC分类号： H02M7/53873 , H02M2001/007 , H02P21/22
摘要： In a control of an AC motor that uses a PWM control and a rectangular-wave control, when switching is conducted from the rectangular-wave control to the PWM control, a current command generated in a current command generation unit is corrected so as to smooth the variations in a time axis direction on the basis of a target torque command value by taking the final current state in the rectangular-wave control immediately prior to switching as an initial value, thereby generating a current command after the correction. An inverter is current feedback-controlled based on the current command after the correction. As a result, the continuity from the current state immediately prior to switching of the rectangular-wave control can be ensured for the current command in the PWM control.
摘要翻译： 在使用PWM控制和矩形波控制的交流电动机的控制中，当从矩形波控制向PWM控制进行切换时，校正在电流指令生成单元中产生的电流指令，使其平滑 基于目标转矩指令值，通过将切换前的矩形波控制中的最终当前状态作为初始值，在时间轴方向上的变化，从而在校正之后生成电流指令。 逆变器根据校正后的电流指令进行电流反馈控制。 结果，可以确保在PWM控制中的电流指令下，紧接切换矩形波控制之前的当前状态的连续性。
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公开(公告)号：US08264181B2
公开(公告)日：2012-09-11
申请号：US12685006
申请日：2010-01-11
IPC分类号： H02P7/00
CPC分类号： H02M7/53873 , H02M2001/007 , H02P21/22
摘要： In a control of an AC motor that uses a PWM control and a rectangular-wave control, when switching is conducted from the rectangular-wave control to the PWM control, a current command generated in a current command generation unit is corrected so as to smooth the variations in a time axis direction on the basis of a target torque command value by taking the final current state in the rectangular-wave control immediately prior to switching as an initial value, thereby generating a current command after the correction. An inverter is current feedback-controlled based on the current command after the correction. As a result, the continuity from the current state immediately prior to switching of the rectangular-wave control can be ensured for the current command in the PWM control.
摘要翻译： 在使用PWM控制和矩形波控制的交流电动机的控制中，当从矩形波控制向PWM控制进行切换时，校正在电流指令生成单元中产生的电流指令，使其平滑 基于目标转矩指令值，通过将切换前的矩形波控制中的最终当前状态作为初始值，在时间轴方向上的变化，从而在校正之后生成电流指令。 逆变器根据校正后的电流指令进行电流反馈控制。 结果，可以确保在PWM控制中的电流指令下，紧接切换矩形波控制之前的当前状态的连续性。
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