Method and apparatus for controlling a pulsed frequency converter
    14.
    发明授权
    Method and apparatus for controlling a pulsed frequency converter 失效
    用于控制脉冲变频器的方法和装置

    公开(公告)号:US4480301A

    公开(公告)日:1984-10-30

    申请号:US399249

    申请日:1982-07-19

    CPC分类号: H02M7/529

    摘要: A system for forming addressing signals for addressing respective converter switches of a frequency converter; the frequency converter being of the type which is provided with DC input terminals for receiving electrical energy which is conducted to phase output terminals when the converter switches are operated in response to the addressing signals. Each of the combinations of converter switches is associated with a discrete space vector, and a load voltage vector is determined. In operation, two of the discrete space vectors which are adjacent to the voltage space vector are addressed for respective dwell times which correspond to the components of the voltage space vector as impressed upon the adjacent discrete space vectors. Either prior to or after the addressing of the adjacent discrete space vectors within a switching cycle, a short circuit state is addressed. In one embodiment, the order in which the adjacent discrete space vectors are addressed is reversed for each subsequent switching cycle. Also, the DC input terminals to which the phase outputs are short circuited are alternated.

    摘要翻译: 一种用于形成用于寻址变频器的各个转换器开关的寻址信号的系统; 所述变频器是具有用于接收电能的类型的变频器,所述DC输入端子响应于所述寻址信号而在所述转换器开关被操作时被传导到相输出端子。 转换器开关的每个组合与离散空间矢量相关联,并且确定负载电压矢量。 在操作中,与电压空间矢量相邻的两个离散空间矢量被寻址用于相应的驻留时间,这些驻留时间对应于施加在相邻离散空间矢量上的电压空间矢量的分量。 在切换周期内对相邻离散空间矢量寻址之前或之后,寻址短路状态。 在一个实施例中,对于每个后续切换周期,相邻离散空间矢量的寻址顺序是相反的。 此外,相位输出短路的直流输入端子交替。