NDLI: Inverse currents injection module for direct current interrupters

Content Provider	IEEE Xplore Digital Library
Author	Balan, H. Munteanu, R. Vadan, I. Botezan, A. Nedelcut, D.
Copyright Year	2008
Description	Author affiliation: Tech. Univ. of Cluj-Napoca (UTCN), Cluj-Napoca (Balan, H.; Munteanu, R.; Vadan, I.; Botezan, A.)
Abstract	It is well known, actual trend in power electronics about exchange power thyristors with devices more flexible from point of view of commutation and possibility of command (IGBT, MOS transistors, GTO). There are applications, for example, DC high voltage electrical energy transmission, where because of high power switched, power thyristors remain an efficient solution. In this paper, is presented a thyristors modulator used for d.c intrerupters disconnecting at short-circuit. Design methodology of turn off groups for autonomous modulator with LC turn off circuit, it is processed by Mc. Murray and Shattuck paper. The expressions proposed for designing turn off groups are calculated in the following steps: calculation of reverse polarization time, by solving transcendental equation; determination of accumulated energy in turn off coil and finally result expressions for turn off inductivity, respective for turn off capacity.
Starting Page	393
Ending Page	398
File Size	544348
Page Count	6
File Format	PDF
ISBN	9781424416639
DOI	10.1109/SPEEDHAM.2008.4581206
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-06-11
Publisher Place	Italy
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Couplings Coils Thyristors Short circuit currents Capacitors Modulation Oscillators Equations DC circuit breakers Modulators
Content Type	Text
Resource Type	Article

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