Electricity: power supply or regulation systems – For reactive power control – Using impedance
Patent
1981-03-11
1982-07-13
Beha, Jr., William H.
Electricity: power supply or regulation systems
For reactive power control
Using impedance
G05F 170
Patent
active
043397050
ABSTRACT:
A thyristor-switched inductor circuit is connected across a portion of a power system at which good regulation is desired. The thyristor-switched circuit delivers a leading or lagging current to compensate for a load of varying reactance and provides proper regulation at the desired portion of the power system. The thyristor-switched circuit comprises two parallel circuit branches each comprising an inductor and a thyristor in series, the thyristors being oppositely poled. The thyristor-switched circuit is operated during both the normal and the transient overvoltage conditions of the power system. During normal conditions the thyristor-switched circuit is operated at a conduction angle of less than 180.degree. so that the forward and reverse currents, related to the thyristors, are not in an overlapped condition. Conversely, during transient overvoltage conditions the thyristor-switched circuit is operated at a conduction angle of greater than 180.degree. so that the forward and reverse currents, related to the thyristors, are in the overlapped condition. The overlapped condition increases the inductive compensation, which, in turn, provides an effect so as to smooth or regulate the transient conditions in the power system.
REFERENCES:
patent: 3601686 (1971-08-01), Gautherin
patent: 3699425 (1972-10-01), Hermansson et al.
patent: 3936726 (1976-02-01), Kelley, Jr.
patent: 3936727 (1976-03-01), Kelley, Jr. et al.
patent: 4121150 (1978-10-01), Kelley, Jr.
patent: 4143315 (1979-03-01), Kelley, Jr.
Hammad et al., "A New Generalized Concept for the Design of Thyristor Phase-Controlled VAr Compensators, Part 1," IEEE Paper F78719-7, PES Summer Meeting in L.A., Ca., Jul. 16-21, 1978.
Hammad et al., "A New Generalized Concept for the Design of Thyristor Phase-Controlled VAr Compensators, Part II," IEEE Paper F78726-2, PES Summer Meeting in L.A., Ca., Jul. 16-21, 1978.
Beha Jr. William H.
Freedman William
General Electric Company
McMahon John P.
Silverman Carl L.
LandOfFree
Thyristor switched inductor circuit for regulating voltage does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Thyristor switched inductor circuit for regulating voltage, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thyristor switched inductor circuit for regulating voltage will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-205950