Electric power conversion device

Electric power conversion systems – Current conversion – With means to introduce or eliminate frequency components

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

363 98, 363 56, H02M 112, H02M 744

Patent

active

061543799

ABSTRACT:
The electric power conversion device includes an AC section, a DC section, a switching section connected between the AC section and the DC section for making power conversion by switching operation, and a control section for control the switching section. In the DC section is installed a ripple detection device for detecting a ripple component emerging into the DC side and for generating a ripple detection signal. When the DC component is included in the output current of the AC section, a ripple component having the same frequency with the AC frequency of the AC section output current is superimposed in the DC section. The ripple detection device is installed in the DC section, and thereby the ripple component emerging into the DC section is detected by the ripple detection device as a reflection of the DC offset included in the output current. The control section receives the ripple detection signal from the ripple detection device, generates the DC component compensation signal for controlling the DC component included in the AC side current based on the ripple detection signal, and controls the switching section by the control signal including the DC component compensation signal to compensate the DC offset.

REFERENCES:
patent: 5177428 (1993-01-01), Hirose et al.
patent: 5309349 (1994-05-01), Kwan
patent: 5867376 (1999-02-01), Nakamura et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Electric power conversion device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electric power conversion device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electric power conversion device will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1732114

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.