Inverter

Details Inverter Inverter

2011-03-15

2011-03-15

Vu, Bao Q (Department: 2838)

Electric power conversion systems

Current conversion

Including an a.c.-d.c.-a.c. converter

C363S047000

Reexamination Certificate

active

07907427

ABSTRACT:
The inverter comprises a diode bridge (21) that rectifies an inputted three-phase AC voltage into a DC voltage, an inverter section (22) that converts the DC voltage converted by the diode bridge (21) into an AC voltage and outputs the resulting voltage, an LC filter that has an inductor Ldcconnected between one output terminal of the diode bridge (21) and one input terminal of the inverter section and a capacitor Cdcconnected across the input terminals of the inverter section, a voltage detecting section (24) that detects cross terminal voltage of the inductor Ldc, and a control section (100) that controls the inverter section (22). The control section (100) controls the inverter section (22) so that the transfer characteristic of the I/O voltage of the inverter section (22) becomes a characteristic of the first-order lag system on the basis of the cross terminal voltage of the inductor Ldcdetected by the voltage detecting section (24).

REFERENCES:
patent: 3522514 (1970-08-01), Tornberg
patent: 4545002 (1985-10-01), Walker
patent: 5245522 (1993-09-01), Kawaguchi et al.
patent: 5621628 (1997-04-01), Miyazaki et al.
patent: 5790396 (1998-08-01), Miyazaki et al.
patent: 6794929 (2004-09-01), Pelly
patent: 7190143 (2007-03-01), Wei et al.
patent: 7388353 (2008-06-01), Kato et al.
patent: 59-61475 (1984-04-01), None
patent: 4-322168 (1992-11-01), None
patent: 9-172783 (1997-06-01), None
“3. Direct AC power converter circuit (present condition and problems of a direct AC power converter circuit technology and related technologies)” of the 998th technical report of the Institute of Electrical Engineers of Japan, pp. 10-11 and 19, Feb. 2005.
Fraser et al., “Transformerless four-wire PWM rectifier and its application in AC-DC-AC converters”, IEE Proc. Electr. Power Appl., vol. 142. No. 6, Nov. 1995, pp. 410-416.

Affiliated with

Also associated with

Rating

Inverter does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2697544