BUSBAR DIAGNOSIS DEVICE, BATTERY PACK, ENERGY STORAGE SYSTEM, AND BUSBAR DIAGNOSIS METHOD

• Main Authors: JO, Yong-Min, JEONG, Ju-Yeon, LEE, Mu-Yeon, LEE, Nak-Choon
• Format: Patent
• Language: English; French; Korean
• Published: 15.09.2022
• Subjects: BASIC ELECTRIC ELEMENTS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; SYSTEMS FOR STORING ELECTRIC ENERGY; TESTING

A busbar diagnosis device according to one aspect of the present invention comprises: a plurality of voltage sensing pins; a battery monitoring circuit; a voltage sensing channel; a bypass unit; and a control circuit for diagnosing the busbar. According to one embodiment of the present invention, the voltage of each of a plurality of battery cells of a first battery module and each of a plurality of battery cells of a second battery module can be detected by using the electric potential difference between every two adjacent voltage sensing pins, and the busbar can be diagnosed on the basis of the voltage history of each of the plurality of battery cells. L'invention porte sur un dispositif de diagnostic de barre omnibus comprenant : une pluralité de broches de détection de tension ; un circuit de surveillance de batterie ; un canal de détection de tension ; une unité de dérivation ; et un circuit de commande permettant de diagnostiquer la barre omnibus. Selon un mode de réalisation de la présente invention, la tension de chaque cellule d'une pluralité de cellules de batterie d'un premier module de batterie et de chaque cellule d'une pluralité de cellules de batterie d'un second module de batterie peut être détectée à l'aide de la différence de potentiel électrique entre chaque paire de broches de détection de tension adjacentes, et la barre omnibus peut être diagnostiquée sur la base de l'historique de tension de chaque cellule parmi la pluralité de cellules de batterie. 본 발명의 일 측면에 따른 버스바 진단 장치는, 복수의 전압 센싱핀, 배터리 감시 회로, 전압 센싱 채널; 바이패스 유닛 및 상기 버스바를 진단하는 제어 회로를 포함한다. 본 발명의 일 실시예에 의하면, 인접한 두 전압 센싱핀마다의 전위차를 이용하여 제1 배터리 모듈의 복수의 배터리 셀 및 상기 제2 배터리 모듈의 복수의 배터리 셀 각각의 전압을 검출하고, 복수의 배터리 셀 각각의 전압 이력을 기초로, 상기 버스바를 진단할 수 있다.