Discontinuous pulse width modulation
    2.
    发明授权
    Discontinuous pulse width modulation 有权
    脉冲宽度调制不连续

    公开(公告)号:US09369071B2

    公开(公告)日:2016-06-14

    申请号:US14185274

    申请日:2014-02-20

    Abstract: A discontinuous pulse width modulation technique is used in a controller to control an inverter that converts DC battery power to AC power to operate an electric motor, e.g., in a hybrid electric vehicle. The discontinuous pulse width modulation technique uses only one of the two zero state voltage vectors in its calculations whereas traditional pulse width modulation uses both zero state voltage vectors. The use of a single zero state voltage vector can result in one of a group of switches in the inverter remaining in a constant state during a complete duty cycle while still providing the commanded voltage vector to the electrical motor. As a result losses due to switching can be reduced.

    Abstract translation: 在控制器中使用不连续脉宽调制技术来控制将DC电池电力转换为AC电力以在例如混合电动车辆中操作电动机的逆变器。 不连续脉宽调制技术在其计算中仅使用两个零状态电压矢量中的一个,而传统的脉宽调制则使用零状态电压矢量。 使用单个零状态电压矢量可以导致在整个占空比期间逆变器中的一组开关中的一个保持在恒定状态,同时仍向电动机提供指令的电压矢量。 因此,可以减少切换造成的损失。

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