Method and device for control of a series-compensated converter

Details Method and device for control of a series-compensated converter Method and device for control of a series-compensated converter

1995-10-03

1997-08-12

Wong, Peter S.

Electric power conversion systems

Current conversion

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

363 37, 363 39, H02J 336

Patent

active

056572131

ABSTRACT:
Control equipment (CE2) generates an ordered value (AOL) of a control angle (.alpha.) in dependence on a limiting signal (AMAXL), capable of being influenced, for a converter included in a series-compensated converter station. A calculating value (AMARG) of a control angle is calculated continuously according to a predetermined relationship (M0, M1, M2, M3) which at least approximately resembles a relationship according to which, at a commutating margin (.gamma..sub.m) equal to a preselected value (.gamma..sub.p), said control angle is a function (F0) of a current (Id2) and a voltage (Un2) in the converter station and the limiting signal is formed in dependence on the calculating value.

REFERENCES:
patent: 4210956 (1980-07-01), Watanabe
patent: 4264951 (1981-04-01), Konishi et al.

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