Electrical transmission or interconnection systems – With harmonic filter or neutralizer
Patent
1991-10-24
1993-11-16
Stephan, Steven L.
Electrical transmission or interconnection systems
With harmonic filter or neutralizer
307102, 361 20, 333175, 333176, H02H 706
Patent
active
052626776
ABSTRACT:
A scheme for counteracting subsynchronous resonance in an AC power system that comprises a passive device in combination with a line inductive shunt reactor (L10). The device is connected from the neutral end (N) of the reactor (L10) to ground and comprises a plurality of circuit branches: one of those branches comprises a condenser (C10), another one includes an inductor (L12) in series with at least one tank circuit (C14, L14). The combination of these elements results in circuit paths from the AC line to ground of selected admittance values for at least one selected frequency as well as in a solid grounding of the shunt reactor neutral at synchronous frequency.
REFERENCES:
patent: 1708950 (1925-05-01), Norton
patent: 3745416 (1973-07-01), Thanauala
patent: 3813593 (1974-05-01), Tice et al.
patent: 3881137 (1975-04-01), Thanauala
patent: 3944846 (1976-03-01), Thompson et al.
patent: 4268758 (1981-05-01), Grassmann
patent: 4438386 (1984-03-01), Gyugyi
patent: 4513243 (1985-04-01), Novak et al.
patent: 4551780 (1985-11-01), Canay
patent: 4607217 (1986-08-01), Bhargava
patent: 4795990 (1989-01-01), Ishikawa et al.
patent: 4808843 (1989-02-01), Hedin
patent: 4843513 (1989-06-01), Edris
IEEE Transactions PAS-99, pp. 1810-1818 Sep./Oct. 80; IEEE Subsynchronous Resonance Working Group; "Countermeasures to Subsynchronous Resonance Problems".
IEEE Paper 91SM350-9 PWRS; IEEE Subsynchronous Resonance Working Group; "Readers Guide to Subsynchronous Resonance".
Siemens Energy & Automation Technology; Mar. 1986 Hingorant et al., pp. 7-10 "NGH Damping Device Solves Subsynchronos Resonance Problem".
Davidson Ben
Stephan Steven L.
LandOfFree
Reactor subsynchronous tuning scheme does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Reactor subsynchronous tuning scheme, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reactor subsynchronous tuning scheme will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-24171