Series capacitor equipment

Details Series capacitor equipment Series capacitor equipment

1993-08-24

1994-11-22

Pellinen, A. D.

Electrical transmission or interconnection systems

With harmonic filter or neutralizer

323211, H02J 102

Patent

active

053671970

ABSTRACT:
Series capacitor equipment for connection into an electric power line (A) has a capacitor bank (C) and a controllable inductor connection (L, T1, T2) connected in parallel therewith and comprising a series connection of an inductor (L) and a controllable semiconductor connection (T1, T2). Further, the equipment comprises control members (CU) adapted, on the occurrence of a subsynchronous resonance oscillation, to control the semiconductor connection with separate control angle values during positive and negative half-cycles of the capacitor voltage for generation of a subharmonic voltage which counteracts the resonance oscillation.

REFERENCES:
patent: 3992661 (1976-11-01), Kelley, Jr.
patent: 3999117 (1976-12-01), Gyugyi et al.
patent: 4275346 (1981-06-01), Kelley, Jr.
patent: 4292545 (1981-09-01), Hingorani
patent: 4434376 (1984-02-01), Hinogorani
patent: 4438386 (1984-03-01), Gyugyi
patent: 4551780 (1985-11-01), Canay
patent: 4607217 (1986-08-01), Bhargava
patent: 4999565 (1991-03-01), Nilsson
patent: 5032738 (1991-07-01), Vithayathil
patent: 5202583 (1993-04-01), Larsen et al.
patent: 5227713 (1993-07-01), Bowler et al.
Doradla, S. R., and Patel, B. K. "A Thyristor Reactive Power Compensator for Fast Varying Industrial Loads", International Journal of Electronics, Dec. 1981, vol. 51, No. 6, pp. 763-777.

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