Electric power conversion systems – Current conversion – With condition responsive means to control the output...
Patent
1994-09-01
1997-05-06
Wong, Peter S.
Electric power conversion systems
Current conversion
With condition responsive means to control the output...
363 41, 323235, G05F 110, H02M 112
Patent
active
056277423
ABSTRACT:
In order to equalize voltage shares of DC-side voltage dividing capacitors of a three-level power converting apparatus for converting a DC voltage to a three-level AC phase voltage, there is provided an arrangement for compensating for rising and falling instances of a three-level AC voltage pulse depending on a difference voltage between the two voltage dividing capacitors and the polarity of the AC current, thereby adjusting a zero-voltage period of the AC voltage.
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Nakamura Kiyoshi
Nakata Kiyoshi
Tanamachi Tokunosuke
Terunuma Mutsuhiro
Hitachi , Ltd.
Vu Bao Q.
Wong Peter S.
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