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Study on Construction of Industrial Large‐Scale Battery System
Author(s) -
YAMAUCHI SHIN,
EMORI AKIHIKO,
FUTAMI MOTOO,
KAWAI MICHIFUMI,
HONDA MITSUTOSHI,
TAKEDA KENJI,
IWASAWA HIROSHI
Publication year - 2017
Publication title -
electrical engineering in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.136
H-Index - 28
eISSN - 1520-6416
pISSN - 0424-7760
DOI - 10.1002/eej.22901
Subject(s) - battery (electricity) , hierarchy , block (permutation group theory) , reliability engineering , state of charge , fault (geology) , engineering , management system , voltage , scale (ratio) , automotive engineering , computer science , electrical engineering , power (physics) , operations management , physics , geometry , mathematics , quantum mechanics , seismology , economics , market economy , geology
SUMMARY This paper proposes a construction method for battery systems that are widely used in industries. The battery system uses a building block structure combined with a battery module, whose capacity is less than 1 kWh. To manage the building block structured system, we propose a hierarchical structured management method. In each hierarchy, the voltage and temperature of the battery are monitored, and the information necessary for calculating charge states and detecting faults are sent to the upper hierarchy for the state management of the lower hierarchy. Furthermore, to ensure the safety during maintenance activities, we provide a guidance for understanding the insulation structure for the battery module, and develop a ground fault detection method that detects a decline in the insulation performance by using a rising method. For the experiment, we use a 30‐kWh trial manufacture battery system combined with the hierarchical management method. We verify that charge states and faults are detected in the battery of the system, and confirm that the system can be charged and discharged safely.