Storage system and storage controller for storage system

摘要

A storage control unit for a storage system includes a first storage controller. The first storage controller includes: first voltage detection terminals that is connected to voltage detection lines respectively connected to first storage units, via switches; a first voltage detection circuit that is connected to each of the first voltage detection terminals and that detects a first voltage of each of the first storage units via each of the first voltage detection lines; a first voltage input terminal that a second voltage of each of second storage units that are different from the first storage units is input to; and a first voltage output terminal that is connected to the first voltage detection terminals via switches. The first voltage detection circuit is further connected to the first voltage input terminal and detects the second voltage via the first voltage input terminal.

主权项

1. An electrical storage system comprising:
a plurality of electrical storage units that are electrically connected to each other, grouped into a plurality of electrical storage unit groups that are electrically connected in series to each other and that includes a plurality of members out of the storage units; and a plurality of state detection circuits that introduces therein a physical quantity from each of the electrical storage units and detects a state quantity of each of the electrical storage units, wherein the state detection circuits includes a plurality of first state detection circuits and a second state detection circuits, the first state circuits correspond to the electrical storage unit groups, respectively, and each of the first state circuits is electrically connected to a positive electrode and a negative electrode of each of the electrical storage units in a corresponding electrical storage unit, any two of the first state detection circuits, forming an imaginary pair of first state detection circuits, which corresponds to any two of the electrical storage unit groups that are potentially adjacent to each other, are electrically connected to each other via a transmission circuit, one of the first state detection circuits that corresponds to one of the storage unit groups that is at a highest potential or at a lowest potential is electrically connected to the second state detection circuit via the transmission circuit, one of the imaginary pair of first state detection circuits that are electrically connected to each other via the transmission circuit introduces therein the respective physical quantities of the electrical storage unit groups in the corresponding electrical storage unit group and detects the respective state quantities of the electrical storage units in the corresponding electrical storage unit group, and transmits the respective physical quantities introduced therein to the other of the imaginary pair of first state detection circuit or the second state detection circuit, which is electrically connected thereto via the transmission circuit, and the other of the imaginary pair of first state detection circuit or the second state detection circuit, which is electrically detected to the one of the first state detection circuit via the transmission circuit introduces therein the physical quantities transmitted via the transmission circuit and detects the respective physical quantities of the electrical storage units in the electrical storage unit group corresponding to the one of the imaginary pair of first state detection circuits.