ELECTRIC STORAGE SYSTEM

摘要

An electric storage system includes electric storage blocks and a controller determining the state of each of the electric storage blocks. The plurality of electric storage blocks are connected in series, and each of the electric storage blocks has a plurality of electric storage elements connected in parallel. Each of the electric storage elements has a current breaker breaking a current path within the electric storage element. The controller acquires at least one parameter of an internal resistance and a full charge capacity of each of the electric storage blocks, and uses a change rate between the acquired parameter and a reference value to specify the number of current breakers in a broken state (the number of breaks) in each of the electric storage blocks. The reference value refers to the value of the parameter in the electric storage block not including the current breaker in the broken state.

主权项

1. An electric storage system comprising:
a plurality of electric storage blocks connected in series, each of the electric storage blocks having a plurality of electric storage elements connected in parallel; and a controller determining a state of each of the electric storage blocks, wherein each of the electric storage elements has a current breaker breaking a current path within the electric storage element, and the controller acquires at least one parameter of an internal resistance and a full charge capacity of each of the electric storage blocks, and the controller uses a change rate between the acquired parameter and a reference value of the parameter in the electric storage block not including the current breaker in a broken state to specify the number of a break representing the number of the current breaker in the broken state in each of the electric storage blocks.