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发明授权
US06466466B1 Stable artificial neutral point in a three phase network of single phase rectifiers 有权
单相整流器三相网络中稳定的人造中性点

  • 专利标题： Stable artificial neutral point in a three phase network of single phase rectifiers
  • 专利标题（中）： 单相整流器三相网络中稳定的人造中性点
  • 申请号： US09674573
    申请日： 2001-01-03
  • 公开(公告)号： US06466466B1
    公开(公告)日： 2002-10-15
  • 发明人: Mats Karlsson , Tadeus Wolpert
  • 申请人： Mats Karlsson , Tadeus Wolpert
  • 优先权： SE9801583 19980506
  • 主分类号： H02M114
  • IPC分类号： H02M114
Stable artificial neutral point in a three phase network of single phase rectifiers
摘要：
An electric supply system comprising two or more phases (R2, S2, T2), one rectifier (101, 103, 105) for each phase, the second primary terminals of said rectifiers (101, 103, 105) being interconnected, also comprises an Artificial Neutral Point (ANP) creating means (A2) for creating an artificial neutral point (NA2) in the electric supply system, connected in parallel with said rectifiers. The ANP means (A2) short-circuits the zero sequence voltage component of the system but does not affect the positive and negative sequence components. The ANP means (A2) includes magnetic components of such a kind that the vector sum of the phase voltages is zero. According to a first embodiment, the ANP means (A2) comprises one transformer (113, 115, 117) for each phase, the primary winding of each transformer connected to the respective phase (R2, S2, T2) in a star configuration, the secondary windings serially connected and the interconnection point of the primary windings forming an artificial neutral point.
摘要（中）：

一种电源系统，包括两相或多相（R2，S2，T2），一个整流器（101,103,105），用于每相，所述整流器（101,103,105）的第二主端子互连，还包括一个 人造中性点（ANP）创建装置（A2），用于在所述电源系统中创建与所述整流器并联连接的人造中性点（NA2）。 ANP装置（A2）使系统的零序电压分量短路，但不影响正序和负序分量。 ANP装置（A2）包括相电压的矢量和为零的这种种类的磁分量。 根据第一实施例，ANP装置（A2）包括用于每相的一个变压器（113,115,117），每个变压器的初级绕组以星形结构连接到相应的相位（R2，S2，T2）， 次级绕组串联连接，初级绕组的互连点形成人造中性点。

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