Arc extinguishing optimization method and system for direct-current circuit breaker

The invention discloses an arc extinguishing optimization method and system for a direct current circuit breaker, and the method comprises the steps: 1), building an initial three-dimensional dynamic arc simulation model, coupling a motion process of a contact of the direct current circuit breaker i...

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Bibliographic Details
Main Authors CHEN SHIDONG, LI QINGXIAN, XIAO YU, XIONG DEZHI
Format Patent
LanguageChinese
English
Published 03.10.2023
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
PHYSICS
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Summary:The invention discloses an arc extinguishing optimization method and system for a direct current circuit breaker, and the method comprises the steps: 1), building an initial three-dimensional dynamic arc simulation model, coupling a motion process of a contact of the direct current circuit breaker in a manner of hybrid grid division, and coupling an external circuit characteristic according to a field-circuit coupling model, a final three-dimensional dynamic arc simulation model is obtained; 2) based on the three-dimensional dynamic arc simulation model, performing comprehensive analysis to obtain factors influencing the on-off reliability of the DC circuit breaker; wherein the factors influencing the on-off reliability of the direct-current circuit breaker comprise a time constant, an arc discharge speed and an arc blow-out magnetic field; and 3) obtaining an arc extinguishing optimization scheme of the direct-current circuit breaker based on the factors influencing the on-off reliability of the direct-curre
Bibliography:Application Number: CN202310862523