MONITORING DEVICE AND MONITORING METHOD FOR ENERGY STORAGE SYSTEM

A monitoring device for an energy storage system (ESS) according to an embodiment of the present invention comprises a processor which: on the basis of voltage data of cells included in a battery among operation data of the ESS, identifies whether a voltage difference between the cells exceeds a fir...

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Bibliographic Details
Main Authors JANG, Moon Seok, OH, Sang Won, JANG, Seung Hyeok, CHOI, Go Hoon, YOON, Dong Yeol, LEE, Sang Bong, YANG, Jin Sun
Format Patent
LanguageEnglish
French
Korean
Published 25.07.2024
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Summary:A monitoring device for an energy storage system (ESS) according to an embodiment of the present invention comprises a processor which: on the basis of voltage data of cells included in a battery among operation data of the ESS, identifies whether a voltage difference between the cells exceeds a first threshold; when the voltage difference exceeds the first threshold, identifies whether the battery is in an over-discharge reserve state on the basis of at least one of an idle period of the battery and the accumulated number of times of at least one cell having a minimum voltage value among the cells; and when the battery is in the over-discharge reserve state, outputs alarm information for the ESS. Un dispositif de surveillance pour un système d'accumulation d'énergie (ESS) selon un mode de réalisation de la présente invention comprend un processeur qui : sur la base de données de tension d'éléments inclus dans une batterie parmi des données de fonctionnement de l'ESS, identifie si une différence de tension entre les éléments dépasse un premier seuil ; lorsque la différence de tension dépasse le premier seuil, identifie si la batterie se trouve dans un état de réserve de décharge excessive sur la base d'une période de repos de la batterie et/ou du nombre cumulé de fois où au moins un élément a adopté une valeur de tension minimale parmi les éléments ; et lorsque la batterie se trouve dans l'état de réserve de décharge excessive, délivre des informations d'alarme pour l'ESS. 본 발명의 일 실시예에 따른 에너지 저장 시스템(Energy Storage System; ESS)의 모니터링 장치에 있어서, 상기 ESS의 운영 데이터 중 배터리에 포함된 셀들의 전압 데이터에 기초하여 상기 셀들 간의 전압 차가 제1임계값을 초과하는지 여부를 식별하고, 상기 전압 차가 제1임계값을 초과하는 경우, 상기 배터리의 휴지 기간 및 상기 셀들 중 최소 전압값을 가지는 적어도 하나의 셀의 누적 횟수 중 적어도 하나에 기초하여 상기 배터리가 과방전 예비 상태인지 여부를 식별하고, 상기 배터리가 과방전 예비 상태인 경우, 상기 ESS에 대한 알람 정보를 출력하는 프로세서를 포함한다.
Bibliography:Application Number: WO2024KR00732