发明名称 |
Method for symmetrizing asymmetric faults |
摘要 |
The present invention concerns a method for symmetrizing asymmetric faults occurring within a pull chain comprising a synchronous or asynchronous motor controlled by a two-level or multi-level inverter consisting of static switches using semiconductors such as IGBT or bipolar transistors. The invention comprises detecting whether the fault connects or may connect a motor phase with the top point or the bottom point of the inverter power supply, and short-circuiting only the half of the inverter affected by the fault on the basis of the detection.
|
申请公布号 |
US6369543(B1) |
申请公布日期 |
2002.04.09 |
申请号 |
US20000601372 |
申请日期 |
2000.11.24 |
申请人 |
ALSTOM BELGIUM S.A. |
发明人 |
MASSELUS JEAN-EMMANUEL;COLASSE ALEXIS;BODSON JEAN-MARIE |
分类号 |
H02H7/12;H02H7/122;H02P27/06;(IPC1-7):H02P1/46 |
主分类号 |
H02H7/12 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|