Electric power conversion systems – Frequency conversion without intermediate conversion to d.c. – By semiconductor converter
Patent
1987-06-30
1988-08-16
Wong, Peter S.
Electric power conversion systems
Frequency conversion without intermediate conversion to d.c.
By semiconductor converter
363164, 323207, H02M 5257
Patent
active
047648597
ABSTRACT:
A current-circulating cycloconverter includes a positive converter and a negative converter connected in anti-parallel with each other through a DC reactor. A load is connected to an intermediate tap of the DC reactor. When a load current flowing to the load is smaller than a predetermined value, a circulating current flowing through the positive and negative converters is held at a minimum required value. A circulating current is caused to additively flow for canceling a voltage drop produced across the DC reactor when the load current exceeds the predetermined value.
REFERENCES:
patent: 4013937 (1977-03-01), Pelly et al.
patent: 4303972 (1981-12-01), Stacey et al.
Matsui Takayuki
Okuyama Toshiaki
Hitachi , Ltd.
Wong Peter S.
LandOfFree
Method and apparatus for controlling circulating-current type cy does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for controlling circulating-current type cy, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for controlling circulating-current type cy will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-603970