MULTILEVEL CONVERTER AND METHOD OF CONVERTING A SUPPLY VOLTAGE
摘要
The present invention is concerned with a multilevel converter including a transformer arrangement comprising at least two transformer units, each with primary and secondary windings and a transformer core structure. The latter are merged into one shared transformer core comprising at least one return limb that is part of the closed magnetic flux paths of the at least two transformer units. Sharing return limbs among individual transformer units, in particular when fed with primary voltage signals that have a certain phase shift between each other, helps to reduce the volume and weight as compared to an individual transformer core structure for each of the transformer units. The multilevel converter is beneficially used in railway traction applications.
申请公布号
WO2007014480(A1)
申请公布日期
2007.02.08
申请号
WO2006CH00397
申请日期
2006.07.31
申请人
ABB TECHNOLOGY AG;STEFANUTTI, PHILIPPE;ZUEGER, HARRY;HUGO, NICOLAS;DORMIA, GEORGES;DESCOLLAZ, BERNARD
发明人
STEFANUTTI, PHILIPPE;ZUEGER, HARRY;HUGO, NICOLAS;DORMIA, GEORGES;DESCOLLAZ, BERNARD