Commutating failure of a single-phase line-commutated inverter

Author

Kobayashi, Miki

Author_Institution

Dept. of Electr. Eng., Kogakuin Univ., Tokyo, Japan

fYear

1994

fDate

7-10 Aug 1994

Firstpage

127

Lastpage

132

Abstract

This paper introduces a new point of view to resolve the commutating failure of a single-phase line-commutated inverter. It is widely believed that the outbreak of this failure is due to the turn-off characteristics of an actual device. From this viewpoint, the safety marginal angle (γ_min) has been recommended as a practice of engineering. However, this practical concept is completely inaccurate. Here, dynamic commutating failure is defined and studied. An algorithm and methodology for a systematic method of treatment of operational modes are formulated. Also a new method of recovery from such a failure is developed

Keywords

DC-AC power convertors; circuit analysis computing; circuit reliability; commutation; digital simulation; failure analysis; invertors; power engineering computing; thyristor convertors; algorithm; circuit analysis; computer simulation; dynamic commutating failure; engineering practice; failure recovery; line-commutated inverter; methodology; operational modes; safety marginal angle; single-phase; thyristors; turn-off characteristics; Books; Circuits; Computational modeling; Distributed power generation; Impedance; Inductance; Inverters; Photovoltaic systems; Safety; Steady-state;

fLanguage

English

Publisher

ieee

Conference_Titel

Computers in Power Electronics, 1994., IEEE 4th Workshop on

Conference_Location

Trois-Rivieres, Que.

Print_ISBN

0-7803-2091-3

Type

conf

DOI

10.1109/CIPE.1994.396727

Filename

396727