D-C Bus current monitoring system

Details D-C Bus current monitoring system D-C Bus current monitoring system

1983-02-14

1985-06-04

Wong, Peter S.

Electric power conversion systems

Current conversion

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

363 37, 363 51, H02J 336

Patent

active

045218404

ABSTRACT:
The d-c bus current, fed to an inverter through a low pass filter, having a shunt-connected capacitor, from the output of an a-c energized a-c to d-c converter (such as a phase-controlled SCR rectifier bridge), is monitored by using a-c current transformers to sense the filter capacitor current and the a-c current supplied to the converter. The transformer output signals are employed to produce a d-c signal which is a reduced amplitude replica of, and has the identical waveshape as, the d-c bus current. The monitoring system is electrically isolated from the power circuitry by means of the a-c current transformers.

REFERENCES:
patent: 2866148 (1958-12-01), Forssell
patent: 3229184 (1966-01-01), Churchill
patent: 3431482 (1969-03-01), Uhlmann
patent: 3453526 (1969-07-01), Bowles
patent: 3597674 (1971-08-01), Abbey
patent: 3614532 (1971-10-01), Smith
patent: 3942090 (1976-03-01), Matthes et al.
patent: 3944919 (1976-03-01), Jewell et al.
patent: 3949291 (1976-04-01), Kanngiesser et al.
patent: 4099807 (1978-07-01), Barnes
patent: 4177508 (1979-12-01), Schmid
patent: 4264951 (1981-04-01), Konishi et al.
patent: 4326245 (1982-04-01), Saleh
patent: 4328454 (1982-04-01), Okuyama et al.
patent: 4331994 (1982-04-01), Wirth

Affiliated with

Also associated with

Rating

D-C Bus current monitoring system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with D-C Bus current monitoring system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and D-C Bus current monitoring system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-832163