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    • 8. 发明申请
    • CONTROL TECHNIQUES FOR AN INTERIOR PERMANENT MAGNET SYNCHRONOUS MOTOR OF AN ELECTRIFIED VEHICLE
    • 电动车辆内置永磁同步电动机的控制技术
    • US20160056744A1
    • 2016-02-25
    • US14467455
    • 2014-08-25
    • Ahmad Arshan KhanYoung Joo LeeBing ChengHua BaiFei YangAllan Taylor
    • Ahmad Arshan KhanYoung Joo LeeBing ChengHua BaiFei YangAllan Taylor
    • H02P21/14
    • H02P27/085H02P23/04H02P29/50
    • A system and method for controlling an interior permanent magnet synchronous motor (IPMSM) are presented. In an exemplary implementation, phase current ripple estimation techniques are utilized for variable frequency switching pulse-width modulation control of the IPMSM. In one implementation, the method includes controlling a three-phase inverter based on an initial switching frequency to generate a three-phase alternating current (AC) voltage for the IPMSM. Transformed voltages are determined in a rotating reference frame based on the three-phase AC voltage in the stationary reference frame. Current ripples are determined in the rotating reference frame based on the transformed voltages. Phase current ripples are determined in the stationary reference frame based on the current ripples in the rotating reference frame. A modified switching frequency for the three-phase inverter is determined based on the initial switching frequency and the phase current ripples. The three-phase inverter is then controlled based on the modified switching frequency.
    • 提出了一种用于控制内部永磁同步电动机(IPMSM)的系统和方法。 在示例性实施例中,相电流纹波估计技术用于IPMSM的可变频率切换脉宽调制控制。 在一个实现中,该方法包括基于初始开关频率来控制三相逆变器以产生用于IPMSM的三相交流(AC)电压。 基于静止参考系中的三相交流电压,在旋转参考系中确定变压电压。 基于变换的电压,在旋转参考系中确定电流波纹。 基于旋转参考系中的电流波纹,在静止参考系中确定相电流纹波。 基于初始开关频率和相电流纹波确定三相逆变器的修改开关频率。 然后基于修改的开关频率来控制三相逆变器。