POWER DEVICE MONITORING SYSTEM AND MONITORING METHOD

The present invention relates to a monitoring system for a plurality of power devices that are serially connected in a main circuit of a current transmission path, the monitoring system comprising: a first power device and a second power device which respectively include a semiconductor element; a f...

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Bibliographic Details
Main Author KANG, Sunghee
Format Patent
LanguageEnglish
French
Korean
Published 15.10.2020
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Summary:The present invention relates to a monitoring system for a plurality of power devices that are serially connected in a main circuit of a current transmission path, the monitoring system comprising: a first power device and a second power device which respectively include a semiconductor element; a first sensor which is connected to each of the first and second power devices, and which senses information related to a first current flowing in the first power device; a second sensor for sensing information related to a second current flowing in the second power device; a third sensor for sensing information related to a third current flowing between the first power device and the second power device; and a control unit for comparing the first current and the second current on the basis of the third current measured by the third sensor, and determining whether the state of each power device is abnormal on the basis of a difference with the third current. La présente invention concerne un système de surveillance pour une pluralité de dispositifs d'alimentation qui sont connectés en série dans un circuit principal d'un trajet de transmission de courant, le système de surveillance comprenant : un premier dispositif d'alimentation et un deuxième dispositif d'alimentation qui comprennent respectivement un élément semi-conducteur ; un premier capteur qui est connecté à chacun des premier et deuxième dispositifs d'alimentation, et qui détecte des informations relatives à un premier courant circulant dans le premier dispositif d'alimentation ; un deuxième capteur pour détecter des informations relatives à un deuxième courant circulant dans le deuxième dispositif d'alimentation ; un troisième capteur pour détecter des informations relatives à un troisième courant circulant entre le premier dispositif d'alimentation et le deuxième dispositif d'alimentation ; et une unité de commande pour comparer le premier courant et le deuxième courant sur la base du troisième courant mesuré par le troisième capteur, et déterminer si l'état de chaque dispositif d'alimentation est anormal sur la base d'une différence avec le troisième courant. 본 발명은 전류 전달 경로의 주회로에서 직렬로 연결된 복수의 파워 디바이스의 모니터링 시스템에 대한 것으로, 각각 반도체 엘리먼트를 포함하는 제1 파워 디바이스와 제2 파워 디바이스와, 상기 제1 및 제2 파워 디바이스 각각과 연결되며, 상기 제1 파워 디바이스에 흐르는 제1 전류에 관련된 정보를 센싱하는 제1 센서 및, 상기 제2 파워 디바이스에 흐르는 제2 전류에 관련된 정보를 센싱하는 제2 센서와, 상기 제1 파워 디바이스와 제2 파워 디바이스 사이에 흐르는 제3 전류에 관련된 정보를 센싱하는 제3 센서 및, 상기 제3 센서로부터 측정되는 제3 전류를 기준으로, 상기 제1 전류 및 제2 전류를 비교하며, 상기 제3 전류와의 차이에 근거하여 각 파워 디바이스 별로 상태 이상 여부를 판단하는 제어부를 포함하는 것을 특징으로 한다.
Bibliography:Application Number: WO2020KR04038